3 # Process this file with autoconf to produce a configure script.
5 # Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
7 # This configure.ac is free software; the author
8 # gives unlimited permission to copy and/or distribute it,
9 # with or without modifications, as long as this notice is preserved.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
13 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
16 dnl This configure script is complicated, because GRUB needs to deal
17 dnl with three potentially different types:
19 dnl build -- the environment for building GRUB
20 dnl host -- the environment for running utilities
21 dnl target -- the environment for running GRUB
23 dnl In addition, GRUB needs to deal with a platform specification
24 dnl which specifies the system running GRUB, such as firmware.
25 dnl This is necessary because the target type in autoconf does not
26 dnl describe such a system very well.
28 dnl The current strategy is to use variables with no prefix (such as
29 dnl CC, CFLAGS, etc.) for the host type, variables with prefix "BUILD_"
30 dnl (such as BUILD_CC, BUILD_CFLAGS, etc.) for the build type and variables
31 dnl with the prefix "TARGET_" (such as TARGET_CC, TARGET_CFLAGS, etc.) are
32 dnl used for the target type. See INSTALL for full list of variables.
34 AC_INIT([GRUB],[2.04~rc1],[bug-grub@gnu.org])
36 AC_CONFIG_AUX_DIR([build-aux])
38 # We don't want -g -O2 by default in CFLAGS
41 # Checks for build, host and target systems.
44 save_program_prefix="${program_prefix}"
46 program_prefix="${save_program_prefix}"
48 AM_INIT_AUTOMAKE([1.11])
50 AC_CONFIG_SRCDIR([include/grub/dl.h])
51 AC_CONFIG_HEADER([config-util.h])
53 # Explicitly check for pkg-config early on, since otherwise conditional
54 # calls are problematic.
57 # Program name transformations
59 grub_TRANSFORM([grub-bios-setup])
60 grub_TRANSFORM([grub-editenv])
61 grub_TRANSFORM([grub-install])
62 grub_TRANSFORM([grub-mkconfig])
63 grub_TRANSFORM([grub-mkfont])
64 grub_TRANSFORM([grub-mkimage])
65 grub_TRANSFORM([grub-glue-efi])
66 grub_TRANSFORM([grub-mklayout])
67 grub_TRANSFORM([grub-mkpasswd-pbkdf2])
68 grub_TRANSFORM([grub-mkrelpath])
69 grub_TRANSFORM([grub-mkrescue])
70 grub_TRANSFORM([grub-probe])
71 grub_TRANSFORM([grub-reboot])
72 grub_TRANSFORM([grub-script-check])
73 grub_TRANSFORM([grub-set-default])
74 grub_TRANSFORM([grub-sparc64-setup])
75 grub_TRANSFORM([grub-render-label])
76 grub_TRANSFORM([grub-file])
78 # Optimization flag. Allow user to override.
79 if test "x$TARGET_CFLAGS" = x; then
80 TARGET_CFLAGS="$TARGET_CFLAGS -Os"
83 # Default HOST_CPPFLAGS
84 HOST_CPPFLAGS="$HOST_CPPFLAGS -Wall -W"
85 HOST_CPPFLAGS="$HOST_CPPFLAGS -DGRUB_UTIL=1"
87 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -Wall -W"
90 i[[3456]]86) target_cpu=i386 ;;
91 amd64) target_cpu=x86_64 ;;
92 sparc) target_cpu=sparc64 ;;
95 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_CPU_MIPSEL=1"
99 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_CPU_MIPS=1"
115 # Specify the platform (such as firmware).
116 AC_ARG_WITH([platform],
117 AS_HELP_STRING([--with-platform=PLATFORM],
118 [select the host platform [[guessed]]]))
120 # Guess the platform if not specified.
121 if test "x$with_platform" = x; then
122 case "$target_cpu"-"$target_vendor" in
123 i386-apple) platform=efi ;;
124 i386-*) platform=pc ;;
125 x86_64-apple) platform=efi ;;
126 x86_64-*) platform=pc ;;
127 powerpc-*) platform=ieee1275 ;;
128 powerpc64-*) platform=ieee1275 ;;
129 powerpc64le-*) platform=ieee1275 ;;
130 sparc64-*) platform=ieee1275 ;;
131 mipsel-*) platform=loongson ;;
132 mips-*) platform=arc ;;
133 ia64-*) platform=efi ;;
134 arm-*) platform=uboot ;;
135 arm64-*) platform=efi ;;
136 riscv32-*) platform=efi ;;
137 riscv64-*) platform=efi ;;
139 AC_MSG_WARN([unsupported CPU: "$target_cpu" - only building utilities])
144 platform="$with_platform"
147 case "$target_cpu"-"$platform" in
152 x86_64-*) target_cpu=i386 ;;
153 powerpc64-ieee1275) target_cpu=powerpc ;;
154 powerpc64le-ieee1275) target_cpu=powerpc ;;
157 # Check if the platform is supported, make final adjustments.
158 case "$target_cpu"-"$platform" in
167 i386-linuxbios) platform=coreboot ;;
174 mips-qemu-mips) platform=qemu_mips;;
178 mipsel-qemu-mips) platform=qemu_mips;;
179 mipsel-yeeloong) platform=loongson ;;
180 mipsel-fuloong) platform=loongson ;;
190 *) AC_MSG_ERROR([platform "$platform" is not supported for target CPU "$target_cpu"]) ;;
193 if test x$platform != xemu ; then
194 case "$target_cpu" in
195 i386 | powerpc) target_m32=1 ;;
196 x86_64 | sparc64) target_m64=1 ;;
200 if test x"$target_cpu-$platform" = xsparc64-emu ; then
205 windows* | mingw32*) target_os=cygwin ;;
208 # This normalizes the names, and creates a new variable ("host_kernel")
209 # while at it, since the mapping is not always 1:1 (e.g. different OSes
210 # using the same kernel type).
212 gnu*) host_kernel=hurd ;;
213 linux*) host_kernel=linux ;;
214 freebsd* | kfreebsd*-gnu) host_kernel=kfreebsd ;;
215 netbsd*) host_kernel=netbsd ;;
216 solaris*) host_kernel=illumos ;;
217 darwin*) host_kernel=xnu ;;
218 cygwin | windows* | mingw32*) host_kernel=windows ;;
222 cygwin) have_exec=y ;;
223 windows* | mingw32*) have_exec=n ;;
224 aros*) have_exec=n ;;
229 coreboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_COREBOOT=1" ;;
230 multiboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MULTIBOOT=1" ;;
231 efi) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_EFI=1" ;;
232 xen) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_XEN=1" ;;
233 xen_pvh) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_XEN_PVH=1" ;;
234 ieee1275) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_IEEE1275=1" ;;
235 uboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_UBOOT=1" ;;
236 qemu) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_QEMU=1" ;;
237 pc) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_PCBIOS=1" ;;
238 emu) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_EMU=1" ;;
239 loongson) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_LOONGSON=1" ;;
240 qemu_mips) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_QEMU_MIPS=1" ;;
241 arc) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_ARC=1" ;;
243 if test x${target_cpu} = xmipsel ; then
244 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE=`echo mips_$platform | sed y,abcdefghijklmnopqrstuvwxyz,ABCDEFGHIJKLMNOPQRSTUVWXYZ,`"
246 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE=`echo ${target_cpu}_$platform | sed y,abcdefghijklmnopqrstuvwxyz,ABCDEFGHIJKLMNOPQRSTUVWXYZ,`"
249 case "${target_cpu}-$platform" in
251 TARGET_LINK_ADDR=0x88200000
252 TARGET_DECOMPRESSOR_LINK_ADDR=0x88100000
255 TARGET_LINK_ADDR=0x80700000
256 TARGET_DECOMPRESSOR_LINK_ADDR=0x80600000
258 mips*-qemu_mips | mips*-loongson)
259 TARGET_DECOMPRESSOR_LINK_ADDR=0x80100000
263 AC_SUBST(TARGET_LINK_ADDR)
264 AC_SUBST(TARGET_DECOMPRESSOR_LINK_ADDR)
266 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $machine_CPPFLAGS"
270 AC_SUBST(host_kernel)
275 # Define default variables
278 AC_ARG_WITH([bootdir],
279 AS_HELP_STRING([--with-bootdir=DIR],
280 [set the name of /boot directory [[guessed]]]),
281 [have_with_bootdir=y],
282 [have_with_bootdir=n])
283 if test x$have_with_bootdir = xy; then
284 bootdirname="$with_bootdir"
288 # Because /boot is used for the boot block in NetBSD and OpenBSD,
290 *) bootdirname='boot' ;;
294 AC_SUBST(bootdirname)
295 AC_DEFINE_UNQUOTED(GRUB_BOOT_DIR_NAME, "$bootdirname",
296 [Default boot directory name])
298 AC_ARG_WITH([grubdir],
299 AS_HELP_STRING([--with-grubdir=DIR],
300 [set the name of grub directory [[guessed]]]),
301 [grubdirname="$with_grubdir"],
302 [grubdirname="$PACKAGE"])
304 AC_SUBST(grubdirname)
305 AC_DEFINE_UNQUOTED(GRUB_DIR_NAME, "$grubdirname",
306 [Default grub directory name])
309 # Checks for build programs.
312 # Although cmp is listed in the GNU Coding Standards as a command which
313 # can used directly, OpenBSD lacks cmp in the default installation.
314 AC_CHECK_PROGS([CMP], [cmp])
315 if test "x$CMP" = x; then
316 AC_MSG_ERROR([cmp is not found])
319 AC_CHECK_PROGS([YACC], [bison])
320 if test "x$YACC" = x; then
321 AC_MSG_ERROR([bison is not found])
333 if test "x$LEX" = "x:"; then
334 AC_MSG_ERROR([flex is not found])
336 version=`$LEX --version | $AWK '{ split($2,x,"."); print x[[1]]*10000+x[[2]]*100+x[[3]]; }'`
337 if test -n "$version" -a "$version" -ge 20535; then
340 AC_MSG_ERROR([flex is too old. GRUB requires 2.5.35 or above])
344 # These are not a "must".
345 AC_PATH_PROGS(MAKEINFO, makeinfo true)
348 # Checks for host programs.
356 AM_PATH_PYTHON([2.6])
359 test "x$GCC" = xyes || AC_MSG_ERROR([GCC is required])
361 AC_CHECK_PROG(HAVE_CXX, $CXX, yes, no)
364 AM_GNU_GETTEXT([external])
365 AM_GNU_GETTEXT_VERSION([0.18.3])
368 # Identify characteristics of the host architecture.
369 unset ac_cv_c_bigendian
371 if test x"$target_cpu-$platform" = xsparc64-emu ; then
372 CFLAGS="$CFLAGS -m64"
373 HOST_CFLAGS="$HOST_CFLAGS -m64"
376 CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
377 HOST_CPPFLAGS="$HOST_CPPFLAGS -D_FILE_OFFSET_BITS=64"
380 AC_CHECK_SIZEOF(void *)
381 AC_CHECK_SIZEOF(long)
384 cygwin | windows* | mingw32*)
385 HOST_CPPFLAGS="$HOST_CPPFLAGS -DUNICODE=1 -D_WIN32_WINNT=0x0500"
386 CPPFLAGS="$CPPFLAGS -DUNICODE=1 -D_WIN32_WINNT=0x0500"
387 AC_CHECK_SIZEOF(TCHAR,,[#include <windows.h>])
392 cygwin | windows* | mingw32* | aros*)
395 AC_CHECK_SIZEOF(off_t)
396 if test x"$ac_cv_sizeof_off_t" != x8 ; then
397 AC_CHECK_SIZEOF(off64_t)
398 test x"$ac_cv_sizeof_off64_t" = x8 || AC_MSG_ERROR([Large file support is required])
402 if test x$USE_NLS = xno; then
403 HOST_CFLAGS="$HOST_CFLAGS -fno-builtin-gettext"
406 if test "x$cross_compiling" = xyes; then
407 AC_MSG_WARN([cannot generate manual pages while cross compiling])
409 AC_PATH_PROG(HELP2MAN, help2man)
412 # Check for functions and headers.
413 AC_CHECK_FUNCS(posix_memalign memalign getextmntent)
414 AC_CHECK_HEADERS(sys/param.h sys/mount.h sys/mnttab.h limits.h)
416 # glibc 2.25 still includes sys/sysmacros.h in sys/types.h but emits deprecation
417 # warning which causes compilation failure later with -Werror. So use -Werror here
418 # as well to force proper sys/sysmacros.h detection.
419 SAVED_CFLAGS="$CFLAGS"
420 CFLAGS="$HOST_CFLAGS -Werror"
422 CFLAGS="$SAVED_CFLAGS"
424 AC_CHECK_MEMBERS([struct statfs.f_fstypename],,,[$ac_includes_default
425 #include <sys/param.h>
426 #include <sys/mount.h>])
428 AC_CHECK_MEMBERS([struct statfs.f_mntfromname],,,[$ac_includes_default
429 #include <sys/param.h>
430 #include <sys/mount.h>])
432 # For opendisk() and getrawpartition() on NetBSD.
433 # Used in util/deviceiter.c and in util/hostdisk.c.
434 AC_CHECK_HEADER([util.h], [
435 AC_CHECK_LIB([util], [opendisk], [
437 AC_DEFINE(HAVE_OPENDISK, 1, [Define if opendisk() in -lutil can be used])
439 AC_CHECK_LIB([util], [getrawpartition], [
441 AC_DEFINE(HAVE_GETRAWPARTITION, 1, [Define if getrawpartition() in -lutil can be used])
446 AC_CACHE_CHECK([whether -Wtrampolines work], [grub_cv_host_cc_wtrampolines], [
447 SAVED_CFLAGS="$CFLAGS"
448 CFLAGS="$HOST_CFLAGS -Wtrampolines -Werror"
449 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
450 int va_arg_func (int fixed, va_list args);]], [[]])],
451 [grub_cv_host_cc_wtrampolines=yes],
452 [grub_cv_host_cc_wtrampolines=no])
453 CFLAGS="$SAVED_CFLAGS"
456 if test x"$grub_host_cv_cc_wtrampolines" = xyes ; then
457 HOST_CFLAGS="$HOST_CFLAGS -Wtrampolines"
461 # Check for host and build compilers.
464 AC_CHECK_PROGS(BUILD_CC, [gcc egcs cc])
465 test -z "$BUILD_CC" && AC_MSG_ERROR([none of gcc, egcs and cc is found. set BUILD_CC manually.])
466 BUILD_CPP="$BUILD_CC -E"
469 haiku*) BUILD_LIBM= ;;
473 dnl FIXME proper test seems to require too deep dive into Autoconf internals.
474 dnl For now just list known platforms that we support.
477 cygwin*|mingw32*|mingw64*) BUILD_EXEEXT=.exe ;;
480 AC_SUBST(BUILD_EXEEXT)
482 # In some build environments like termux /bin/sh is not a valid
483 # shebang. Use $SHELL instead if it's executable and /bin/sh isn't
484 BUILD_SHEBANG=/bin/sh
485 for she in /bin/sh "$SHELL"; do
486 if test -x "$she" ; then
490 AC_SUBST(BUILD_SHEBANG)
495 WARN_FLAGS="-Wall -W -Wshadow -Wpointer-arith -Wundef -Wchar-subscripts -Wcomment -Wdeprecated-declarations -Wdisabled-optimization -Wdiv-by-zero -Wfloat-equal -Wformat-extra-args -Wformat-security -Wformat-y2k -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Wmain -Wmissing-braces -Wmissing-format-attribute -Wmultichar -Wparentheses -Wreturn-type -Wsequence-point -Wshadow -Wsign-compare -Wswitch -Wtrigraphs -Wunknown-pragmas -Wunused -Wunused-function -Wunused-label -Wunused-parameter -Wunused-value -Wunused-variable -Wwrite-strings -Wnested-externs -Wstrict-prototypes"
496 EXTRA_WARN_FLAGS="-Wextra -Wattributes -Wendif-labels -Winit-self -Wint-to-pointer-cast -Winvalid-pch -Wmissing-field-initializers -Wnonnull -Woverflow -Wvla -Wpointer-to-int-cast -Wstrict-aliasing -Wvariadic-macros -Wvolatile-register-var -Wpointer-sign -Wmissing-include-dirs -Wmissing-prototypes -Wmissing-declarations -Wformat=2"
498 HOST_CFLAGS="$HOST_CFLAGS $WARN_FLAGS -Wcast-align"
500 AC_CACHE_CHECK([which extra warnings work], [grub_cv_cc_w_extra_flags], [
501 SAVED_CFLAGS="$CFLAGS"
502 grub_cv_cc_w_extra_flags=
503 for x in $EXTRA_WARN_FLAGS; do
504 CFLAGS="$HOST_CFLAGS $x -Werror"
505 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [flag=1], [flag=0])
506 if test x$flag = x1 ; then
507 grub_cv_cc_w_extra_flags="$grub_cv_cc_w_extra_flags $x"
510 CFLAGS="$SAVED_CFLAGS"
513 HOST_CFLAGS="$HOST_CFLAGS $grub_cv_cc_w_extra_flags"
516 # Check for target programs.
519 # Find tools for the target.
520 if test "x$target_alias" != x && test "x$host_alias" != "x$target_alias"; then
521 tmp_ac_tool_prefix="$ac_tool_prefix"
522 ac_tool_prefix=$target_alias-
524 AC_CHECK_TOOLS(TARGET_CC, [gcc egcs cc],
525 [AC_MSG_ERROR([none of gcc, egcs and cc is found. set TARGET_CC manually.])])
526 AC_CHECK_TOOL(TARGET_OBJCOPY, objcopy)
527 AC_CHECK_TOOL(TARGET_STRIP, strip)
528 AC_CHECK_TOOL(TARGET_NM, nm)
529 AC_CHECK_TOOL(TARGET_RANLIB, ranlib)
531 ac_tool_prefix="$tmp_ac_tool_prefix"
533 if test "x$TARGET_CC" = x; then
536 AC_CHECK_TOOL(TARGET_OBJCOPY, objcopy)
537 AC_CHECK_TOOL(TARGET_STRIP, strip)
538 AC_CHECK_TOOL(TARGET_NM, nm)
539 AC_CHECK_TOOL(TARGET_RANLIB, ranlib)
544 AC_SUBST(BUILD_CFLAGS)
545 AC_SUBST(BUILD_CPPFLAGS)
546 AC_SUBST(BUILD_LDFLAGS)
549 AC_SUBST(TARGET_RANLIB)
550 AC_SUBST(TARGET_STRIP)
551 AC_SUBST(TARGET_OBJCOPY)
553 # Test the C compiler for the target environment.
556 tmp_LDFLAGS="$LDFLAGS"
557 tmp_CPPFLAGS="$CPPFLAGS"
560 CFLAGS="$TARGET_CFLAGS"
561 CPPFLAGS="$TARGET_CPPFLAGS"
562 LDFLAGS="$TARGET_LDFLAGS"
566 TARGET_CFLAGS="$TARGET_CFLAGS $WARN_FLAGS -g -Wredundant-decls -Wmissing-prototypes -Wmissing-declarations"
567 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -g"
569 if test "x$target_cpu" != xi386 && test "x$target_cpu" != xx86_64; then
570 TARGET_CFLAGS="$TARGET_CFLAGS -Wcast-align"
573 TARGET_CC_VERSION="$(LC_ALL=C $TARGET_CC --version | head -n1)"
575 AC_CACHE_CHECK([which extra warnings work], [grub_cv_target_cc_w_extra_flags], [
576 LDFLAGS="$TARGET_LDFLAGS -nostdlib -static"
578 grub_cv_target_cc_w_extra_flags=
579 for x in $EXTRA_WARN_FLAGS; do
580 CFLAGS="$TARGET_CFLAGS $x -Werror"
581 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
582 asm (".globl start; start:");
584 void __main (void) {}
586 ]], [[]])], [flag=1], [flag=0])
587 if test x$flag = x1 ; then
588 grub_cv_target_cc_w_extra_flags="$grub_cv_target_cc_w_extra_flags $x"
593 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_w_extra_flags"
595 AC_CACHE_CHECK([if compiling with clang], [grub_cv_cc_target_clang],
597 CFLAGS="$TARGET_CFLAGS"
599 [AC_LANG_PROGRAM([], [[
604 [grub_cv_cc_target_clang=no], [grub_cv_cc_target_clang=yes])])
606 if test x$target_cpu = xpowerpc -o x$target_cpu = xmips; then
607 AC_CACHE_CHECK([for options to get big-endian compilation], grub_cv_target_cc_big_endian, [
608 grub_cv_target_cc_big_endian=no
609 for cand in "-target $target_cpu -Wl,-EB" "-target $target_cpu" \
610 "-target $target_cpu-linux-gnu -Wl,-EB" "-target $target_cpu-linux-gnu" \
611 "-EB" "-mbig-endian"; do
612 if test x"$grub_cv_target_cc_big_endian" != xno ; then
615 CFLAGS="$TARGET_CFLAGS $cand -Werror"
616 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
617 #if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__ORDER_BIG_ENDIAN__ != __BYTE_ORDER__)
618 #error still little endian
620 asm (".globl start; start:");
621 asm (".globl _start; _start:");
622 asm (".globl __start; __start:");
624 void __main (void) {}
627 [grub_cv_target_cc_big_endian="$cand"], [])
631 if test x"$grub_cv_target_cc_big_endian" = xno ; then
632 AC_MSG_ERROR([could not force big-endian])
635 skip_linkflags="$(echo "$grub_cv_target_cc_big_endian"|sed 's@-Wl,-EB@@')"
637 TARGET_CFLAGS="$TARGET_CFLAGS $skip_linkflags"
638 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $skip_linkflags"
639 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $skip_linkflags"
640 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_big_endian"
641 elif test x$target_cpu = xmipsel; then
642 AC_CACHE_CHECK([for options to get little-endian compilation], grub_cv_target_cc_little_endian, [
643 grub_cv_target_cc_little_endian=no
644 for cand in "-target $target_cpu -Wl,-EL" "-target $target_cpu" \
645 "-target $target_cpu-linux-gnu -Wl,-EL" "-target $target_cpu-linux-gnu" \
647 if test x"$grub_cv_target_cc_little_endian" != xno ; then
650 CFLAGS="$TARGET_CFLAGS $cand -Werror"
651 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
652 #if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__ORDER_BIG_ENDIAN__ == __BYTE_ORDER__)
653 #error still big endian
655 asm (".globl start; start:");
656 asm (".globl _start; _start:");
657 asm (".globl __start; __start:");
659 void __main (void) {}
662 [grub_cv_target_cc_little_endian="$cand"], [])
666 if test x"$grub_cv_target_cc_little_endian" = xno ; then
667 AC_MSG_ERROR([could not force little-endian])
670 skip_linkflags="$(echo "$grub_cv_target_cc_little_endian"|sed 's@-Wl,-EL@@')"
672 TARGET_CFLAGS="$TARGET_CFLAGS $skip_linkflags"
673 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $skip_linkflags"
674 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $skip_linkflags"
675 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_little_endian"
678 # GRUB code is N32-compliant but it's experimental and we would prefer to
679 # avoid having too much variety when it doesn't result in any real improvement.
680 # Moreover N64 isn't supported.
681 if test "x$target_cpu" = xmips || test "x$target_cpu" = xmipsel ; then
682 AC_CACHE_CHECK([for options to force MIPS o32 ABI], grub_cv_target_cc_mips_o32_abi, [
683 grub_cv_target_cc_mips_o32_abi=no
684 for arg in "" "-mabi=32" "-target $target_cpu -mabi=32" ; do
685 if test x"$grub_cv_target_cc_mips_o32_abi" != xno ; then
688 CFLAGS="$TARGET_CFLAGS $arg -Werror"
689 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
690 #if !defined(_ABIO32) || !defined(_MIPS_SIM) || (_MIPS_SIM != _ABIO32)
693 asm (".globl start; start:");
694 asm (".globl _start; _start:");
695 asm (".globl __start; __start:");
697 void __main (void) {}
700 [grub_cv_target_cc_mips_o32_abi="$arg"], [])
704 if test x"$grub_cv_target_cc_mips_o32_abi" = xno ; then
705 AC_MSG_ERROR([could not force MIPS o32 ABI])
708 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_mips_o32_abi"
709 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_target_cc_mips_o32_abi"
712 AC_CACHE_CHECK([for options to compile assembly], [grub_cv_cc_target_asm_compile], [
714 case "x$target_cpu-$platform" in
724 xpowerpc-* | xsparc64-* | xarm-*)
725 test_program=$target_cpu
728 if test x"$test_program" = x ; then
729 grub_cv_cc_target_asm_compile=
732 for arg in "" "-no-integrated-as"; do
733 cmdline="$TARGET_CC -c -o /dev/null $TARGET_CCASFLAGS $arg $TARGET_CPPFLAGS $srcdir/asm-tests/$test_program.S"
734 echo "Running $cmdline" >&AS_MESSAGE_LOG_FD
735 if $cmdline >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
736 grub_cv_cc_target_asm_compile="$arg"
741 if test x"$found" = xno ; then
742 AC_MSG_ERROR([could not compile assembly])
747 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_cc_target_asm_compile"
749 if test "x$target_cpu" = xi386 && test "x$platform" != xemu; then
750 TARGET_CFLAGS="$TARGET_CFLAGS -march=i386"
753 if test "x$target_m32" = x1; then
755 TARGET_CFLAGS="$TARGET_CFLAGS -m32"
756 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -m32"
757 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -m32"
758 TARGET_LDFLAGS="$TARGET_LDFLAGS -m32"
759 TARGET_MODULE_FORMAT="elf32"
762 if test "x$target_m64" = x1; then
764 TARGET_CFLAGS="$TARGET_CFLAGS -m64"
765 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -m64"
766 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -m64"
767 TARGET_LDFLAGS="$TARGET_LDFLAGS -m64"
768 TARGET_MODULE_FORMAT="elf64"
771 if test "x$grub_cv_cc_target_clang" = xno && test "x$target_cpu" = xi386 && test "x$platform" != xemu && test "x$platform" != xefi; then
772 TARGET_CFLAGS="$TARGET_CFLAGS -mrtd -mregparm=3"
775 # on mips redirect cache flushing function to non-existant one.
776 if test "x$target_cpu" = xmips || test "x$target_cpu" = xmipsel ; then
777 AC_CACHE_CHECK([whether -mflush-func=grub_red_herring works], [grub_cv_cc_mflush_func], [
778 CFLAGS="$TARGET_CFLAGS -mflush-func=grub_red_herring -Werror"
779 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
780 [grub_cv_cc_mflush_func=yes],
781 [grub_cv_cc_mflush_func=no])
784 if test "x$grub_cv_cc_mflush_func" = xyes; then
785 TARGET_CFLAGS="$TARGET_CFLAGS -mflush-func=grub_red_herring"
790 # Force no alignment to save space on i386.
791 if test "x$target_cpu" = xi386; then
792 AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
793 CFLAGS="$TARGET_CFLAGS -falign-loops=1 -Werror"
794 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
795 [grub_cv_cc_falign_loop=yes],
796 [grub_cv_cc_falign_loop=no])
799 AC_CACHE_CHECK([whether -malign-loops works], [grub_cv_cc_malign_loop], [
800 CFLAGS="$TARGET_CFLAGS -malign-loops=1 -Werror"
801 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
802 [grub_cv_cc_malign_loop=yes],
803 [grub_cv_cc_malign_loop=no])
806 if test "x$grub_cv_cc_falign_loop" = xyes; then
807 TARGET_CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1"
808 elif test "x$grub_cv_cc_malign_loop" = xyes; then
809 TARGET_CFLAGS="$TARGET_CFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1"
813 AC_CACHE_CHECK([whether -freg-struct-return works], [grub_cv_cc_freg_struct_return], [
814 CFLAGS="$TARGET_CFLAGS -freg-struct-return -Werror"
815 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
816 [grub_cv_cc_freg_struct_return=yes],
817 [grub_cv_cc_freg_struct_return=no])
820 if test "x$grub_cv_cc_freg_struct_return" = xyes; then
821 TARGET_CFLAGS="$TARGET_CFLAGS -freg-struct-return"
824 if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$platform" != xemu; then
825 # Some toolchains enable these features by default, but they need
826 # registers that aren't set up properly in GRUB.
827 TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow"
830 # GRUB doesn't use float or doubles at all. Yet some toolchains may decide
831 # that floats are a good fit to run instead of what's written in the code.
832 # Given that floating point unit is disabled (if present to begin with)
833 # when GRUB is running which may result in various hard crashes.
834 if test x"$platform" != xemu ; then
835 AC_CACHE_CHECK([for options to get soft-float], grub_cv_target_cc_soft_float, [
836 grub_cv_target_cc_soft_float=no
837 if test "x$target_cpu" = xarm64; then
838 CFLAGS="$TARGET_CFLAGS -mgeneral-regs-only -Werror"
839 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
840 [grub_cv_target_cc_soft_float="-mgeneral-regs-only"], [])
842 if test "x$target_cpu" = xriscv32; then
843 CFLAGS="$TARGET_CFLAGS -march=rv32imac -mabi=ilp32 -Werror"
844 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
845 [grub_cv_target_cc_soft_float="-march=rv32imac -mabi=ilp32"], [])
847 if test "x$target_cpu" = xriscv64; then
848 CFLAGS="$TARGET_CFLAGS -march=rv64imac -mabi=lp64 -Werror"
849 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
850 [grub_cv_target_cc_soft_float="-march=rv64imac -mabi=lp64"], [])
852 if test "x$target_cpu" = xia64; then
853 CFLAGS="$TARGET_CFLAGS -mno-inline-float-divide -mno-inline-sqrt -Werror"
854 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
855 [grub_cv_target_cc_soft_float="-mno-inline-float-divide -mno-inline-sqrt"], [])
857 for cand in "-msoft-float -Xclang -msoft-float -Xclang -no-implicit-float" \
858 "-Xclang -msoft-float -Xclang -no-implicit-float" \
859 "-Xclang -msoft-float" "-msoft-float"; do
860 if test x"$grub_cv_target_cc_soft_float" != xno ; then
863 CFLAGS="$TARGET_CFLAGS $cand -Werror"
864 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
865 [grub_cv_target_cc_soft_float="$cand"], [])
869 if test x"$grub_cv_target_cc_soft_float" = xno ; then
870 AC_MSG_ERROR([could not force soft-float])
873 case x"$grub_cv_target_cc_soft_float" in
875 # A trick so that clang doesn't see it on link stаge
876 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_soft_float"
879 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_soft_float"
882 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_target_cc_soft_float"
886 if test x"$target_cpu" = xsparc64 ; then
887 AC_CACHE_CHECK([for options to reserve application registers], grub_cv_target_cc_mno_app_regs, [
888 grub_cv_target_cc_mno_app_regs=no
889 for cand in "-mllvm -sparc-reserve-app-registers" \
891 if test x"$grub_cv_target_cc_mno_app_regs" != xno ; then
894 CFLAGS="$TARGET_CFLAGS $cand -Werror"
895 CPPFLAGS="$TARGET_CPPFLAGS"
896 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
897 [grub_cv_target_cc_mno_app_regs="$cand"], [])
901 if test x"$grub_cv_target_cc_mno_app_regs" = xno ; then
902 AC_MSG_ERROR([could not reserve application registers])
904 if test x"$grub_cv_target_cc_mno_app_regs" = x"-mllvm -sparc-reserve-app-registers" ; then
905 # A trick so that clang doesn't see it on link stаge
906 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_mno_app_regs"
908 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_mno_app_regs"
911 AC_CACHE_CHECK([for no-relax options], grub_cv_target_cc_mno_relax, [
912 grub_cv_target_cc_mno_relax=no
913 for cand in "-mno-relax" "-Wl,--no-relax"; do
914 if test x"$grub_cv_target_cc_mno_relax" != xno ; then
917 LDFLAGS="$TARGET_LDFLAGS $cand -nostdlib -static"
918 CFLAGS="$TARGET_CFLAGS -Werror"
919 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
920 asm (".globl start; start:");
922 void __main (void) {}
924 ]], [[]])], [grub_cv_target_cc_mno_relax="$cand"], [])
927 LDFLAGS="$TARGET_LDFLAGS"
928 CFLAGS="$TARGET_CFLAGS"
930 if test x"$grub_cv_target_cc_mno_relax" = xno ; then
931 AC_MSG_ERROR([could not find no-relax options])
933 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_mno_relax"
936 # By default, GCC 4.4 generates .eh_frame sections containing unwind
937 # information in some cases where it previously did not. GRUB doesn't need
938 # these and they just use up vital space. Restore the old compiler
940 AC_CACHE_CHECK([whether -fno-dwarf2-cfi-asm works], [grub_cv_cc_fno_dwarf2_cfi_asm], [
941 CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
942 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
943 [grub_cv_cc_fno_dwarf2_cfi_asm=yes],
944 [grub_cv_cc_fno_dwarf2_cfi_asm=no])
947 if test "x$grub_cv_cc_fno_dwarf2_cfi_asm" = xyes; then
948 TARGET_CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
951 if test x"$target_os" = xcygwin; then
952 AC_CACHE_CHECK([whether option -fno-reorder-functions works], grub_cv_cc_no_reorder_functions, [
953 CFLAGS="$TARGET_CFLAGS -fno-reorder-functions"
954 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
955 [grub_cv_cc_no_reorder_functions=yes],
956 [grub_cv_cc_no_reorder_functions=no])
960 if test x"$target_os" = xcygwin && test "x$grub_cv_cc_no_reorder_functions" = xyes; then
961 TARGET_CFLAGS="$TARGET_CFLAGS -fno-reorder-functions"
964 AC_CACHE_CHECK([whether -mno-stack-arg-probe works], [grub_cv_cc_mno_stack_arg_probe], [
965 CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
966 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
967 [grub_cv_cc_mno_stack_arg_probe=yes],
968 [grub_cv_cc_mno_stack_arg_probe=no])
971 if test "x$grub_cv_cc_mno_stack_arg_probe" = xyes; then
972 TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
976 # By default, GCC 4.6 generates .eh_frame sections containing unwind
977 # information in some cases where it previously did not. GRUB doesn't need
978 # these and they just use up vital space. Restore the old compiler
980 AC_CACHE_CHECK([whether -fno-asynchronous-unwind-tables works], [grub_cv_cc_fno_asynchronous_unwind_tables], [
981 CFLAGS="$TARGET_CFLAGS -fno-asynchronous-unwind-tables"
982 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
983 [grub_cv_cc_fno_asynchronous_unwind_tables=yes],
984 [grub_cv_cc_fno_asynchronous_unwind_tables=no])
987 if test "x$grub_cv_cc_fno_asynchronous_unwind_tables" = xyes; then
988 TARGET_CFLAGS="$TARGET_CFLAGS -fno-asynchronous-unwind-tables"
991 AC_CACHE_CHECK([whether -fno-unwind-tables works], [grub_cv_cc_fno_unwind_tables], [
992 CFLAGS="$TARGET_CFLAGS -fno-unwind-tables"
993 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
994 [grub_cv_cc_fno_unwind_tables=yes],
995 [grub_cv_cc_fno_unwind_tables=no])
998 if test "x$grub_cv_cc_fno_unwind_tables" = xyes; then
999 TARGET_CFLAGS="$TARGET_CFLAGS -fno-unwind-tables"
1003 CFLAGS="$TARGET_CFLAGS"
1006 if test x"$platform" = xemu ; then
1008 grub_cv_target_cc_link_format=
1011 grub_cv_target_cc_link_format="-arch,${target_cpu}"
1012 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
1014 *windows* | *cygwin* | *mingw*)
1015 if test x${target_cpu} = xi386 ; then
1016 grub_cv_target_cc_link_format=-mi386pe
1017 TARGET_OBJ2ELF='./build-grub-pe2elf$(BUILD_EXEEXT)'
1019 if test x${target_cpu} = xx86_64 ; then
1020 grub_cv_target_cc_link_format=-mi386pep
1021 TARGET_OBJ2ELF='./build-grub-pep2elf$(BUILD_EXEEXT)'
1023 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
1026 elif test x"$target_cpu" = xi386 || test x"$target_cpu" = xx86_64; then
1027 AC_CACHE_CHECK([for target linking format], [grub_cv_target_cc_link_format], [
1028 grub_cv_target_cc_link_format=unknown
1029 for format in -melf_${target_cpu} -melf_${target_cpu}_fbsd -melf_${target_cpu}_obsd -melf_${target_cpu}_haiku -mi386pe -mi386pep -arch,${target_cpu}; do
1030 if test x${target_cpu} != xi386 && test x$format = x-mi386pe; then
1033 if test x${target_cpu} != xx86_64 && test x$format = x-mi386pep; then
1036 CFLAGS="$TARGET_CFLAGS"
1037 LDFLAGS="$TARGET_LDFLAGS -Wl,$format -nostdlib -static"
1038 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1039 asm (".globl start; start:");
1040 asm (".globl _start; _start:");
1041 asm (".globl __start; __start:");
1043 void __main (void) {}
1044 ]], [[]])], [flag=1], [flag=0])
1045 if test x"$flag" = x1; then
1046 grub_cv_target_cc_link_format="$format"
1050 if test x"$grub_cv_target_cc_link_format" = xunknown; then
1051 AC_MSG_ERROR([no suitable link format found])
1053 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
1054 if test x"$grub_cv_target_cc_link_format" = x-mi386pe ; then
1055 TARGET_OBJ2ELF='./build-grub-pe2elf$(BUILD_EXEEXT)'
1057 if test x"$grub_cv_target_cc_link_format" = x-mi386pep ; then
1058 TARGET_OBJ2ELF='./build-grub-pep2elf$(BUILD_EXEEXT)'
1062 if test x$grub_cv_target_cc_link_format = x-arch,i386 || test x$grub_cv_target_cc_link_format = x-arch,x86_64; then
1063 TARGET_APPLE_LINKER=1
1064 AC_CHECK_PROG([TARGET_OBJCONV], [objconv], [objconv], [])
1065 if test "x$TARGET_OBJCONV" = x ; then
1066 AC_CHECK_PROG([TARGET_OBJCONV], [objconv], [./objconv], [], [.])
1068 if test "x$TARGET_OBJCONV" = x ; then
1069 AC_MSG_ERROR([objconv not found which is required when building with apple compiler])
1071 TARGET_IMG_LDSCRIPT=
1072 TARGET_IMG_CFLAGS="-static"
1073 TARGET_IMG_LDFLAGS='-nostdlib -static -Wl,-preload -Wl,-segalign,20'
1074 TARGET_IMG_LDFLAGS_AC='-nostdlib -static -Wl,-preload -Wl,-segalign,20'
1075 TARGET_IMG_BASE_LDOPT="-Wl,-image_base"
1076 TARGET_LDFLAGS_OLDMAGIC=""
1077 elif test x$grub_cv_target_cc_link_format = x-mi386pe || test x$grub_cv_target_cc_link_format = x-mi386pep ; then
1078 TARGET_APPLE_LINKER=0
1079 TARGET_LDFLAGS_OLDMAGIC="-Wl,-N"
1080 TARGET_IMG_LDSCRIPT='$(top_srcdir)'"/${grub_coredir}/conf/i386-cygwin-img-ld.sc"
1081 TARGET_IMG_LDFLAGS="-Wl,-T${TARGET_IMG_LDSCRIPT}"
1082 TARGET_IMG_LDFLAGS_AC="-Wl,-T${srcdir}/${grub_coredir}/conf/i386-cygwin-img-ld.sc"
1083 TARGET_IMG_BASE_LDOPT="-Wl,-Ttext"
1086 TARGET_APPLE_LINKER=0
1087 TARGET_LDFLAGS_OLDMAGIC="-Wl,-N"
1088 TARGET_IMG_LDSCRIPT=
1089 TARGET_IMG_LDFLAGS='-Wl,-N'
1090 TARGET_IMG_LDFLAGS_AC='-Wl,-N'
1091 TARGET_IMG_BASE_LDOPT="-Wl,-Ttext"
1095 CFLAGS="$TARGET_CFLAGS"
1097 AC_ARG_ENABLE([efiemu],
1098 [AS_HELP_STRING([--enable-efiemu],
1099 [build and install the efiemu runtimes (default=guessed)])])
1100 if test x"$enable_efiemu" = xno ; then
1101 efiemu_excuse="explicitly disabled"
1104 if test x"$grub_cv_target_cc_link_format" = x-mi386pe || test x"$grub_cv_target_cc_link_format" = x-mi386pep ; then
1105 efiemu_excuse="not available on cygwin"
1107 if test x"$target_cpu" != xi386 ; then
1108 efiemu_excuse="only available on i386"
1110 if test x"$platform" = xefi ; then
1111 efiemu_excuse="not available on efi"
1114 if test x"$efiemu_excuse" = x ; then
1115 AC_CACHE_CHECK([whether options required for efiemu work], grub_cv_cc_efiemu, [
1116 CFLAGS="-m64 -nostdlib -O2 -mcmodel=large -mno-red-zone"
1117 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1118 [grub_cv_cc_efiemu=yes],
1119 [grub_cv_cc_efiemu=no])
1121 if test x$grub_cv_cc_efiemu = xno; then
1122 efiemu_excuse="cannot compile with -m64 -mcmodel=large -mno-red-zone -nostdlib"
1125 if test x"$efiemu_excuse" = x ; then
1126 AC_CACHE_CHECK([for efiemu64 linking format], [grub_cv_target_cc_efiemu64_link_format], [
1127 grub_cv_target_cc_efiemu64_link_format=unknown
1128 for format in -melf_x86_64 -melf_x86_64_fbsd -melf_x86_64_obsd -melf_x86_64_haiku -arch,x86_64; do
1129 CFLAGS="-m64 -nostdlib -O2 -mcmodel=large -mno-red-zone"
1130 LDFLAGS="-m64 -Wl,$format -nostdlib -static"
1131 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1132 asm (".globl start; start:");
1133 asm (".globl _start; _start:");
1134 asm (".globl __start; __start:");
1136 void __main (void) {}
1137 ]], [[]])], [flag=1], [flag=0])
1138 if test x"$flag" = x1; then
1139 grub_cv_target_cc_efiemu64_link_format="$format"
1143 if test x"$grub_cv_target_cc_efiemu64_link_format" = xunknown; then
1144 efiemu_excuse="no suitable link format for efiemu64 found"
1146 EFIEMU64_LINK_FORMAT="-Wl,$grub_cv_target_cc_efiemu64_link_format"
1149 if test x"$enable_efiemu" = xyes && test x"$efiemu_excuse" != x ; then
1150 AC_MSG_ERROR([efiemu runtime was explicitly requested but can't be compiled ($efiemu_excuse)])
1152 if test x"$efiemu_excuse" = x ; then
1157 AC_SUBST([enable_efiemu])
1158 AC_SUBST([EFIEMU64_LINK_FORMAT])
1160 CFLAGS="$TARGET_CFLAGS"
1162 AC_SUBST(TARGET_LDFLAGS_OLDMAGIC)
1165 LDFLAGS="$TARGET_LDFLAGS"
1167 if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 || test "$target_cpu" = riscv64 ; then
1168 # Use large model to support 4G memory
1169 AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
1170 CFLAGS="$TARGET_CFLAGS -mcmodel=large"
1171 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1172 [grub_cv_cc_mcmodel=yes],
1173 [grub_cv_cc_mcmodel=no])
1175 if test "x$grub_cv_cc_mcmodel" = xyes; then
1176 TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=large"
1177 elif test "$target_cpu" = sparc64 || test "$target_cpu" = riscv64; then
1178 TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=medany"
1182 if test "$target_cpu"-"$platform" = x86_64-efi; then
1183 # EFI writes to stack below %rsp, we must not use the red zone
1184 AC_CACHE_CHECK([whether option -mno-red-zone works], grub_cv_cc_no_red_zone, [
1185 CFLAGS="$TARGET_CFLAGS -mno-red-zone"
1186 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1187 [grub_cv_cc_no_red_zone=yes],
1188 [grub_cv_cc_no_red_zone=no])
1190 if test "x$grub_cv_cc_no_red_zone" = xno; then
1191 AC_MSG_ERROR([-mno-red-zone not supported, upgrade your gcc])
1194 TARGET_CFLAGS="$TARGET_CFLAGS -mno-red-zone"
1197 if test "x$target_cpu" = xarm; then
1198 AC_CACHE_CHECK([for options to disable movt and movw], grub_cv_target_cc_mno_movt, [
1199 grub_cv_target_cc_mno_movt=no
1200 for cand in "-mno-movt" \
1201 "-mllvm -arm-use-movt=0"; do
1202 if test x"$grub_cv_target_cc_mno_movt" != xno ; then
1205 CFLAGS="$TARGET_CFLAGS $cand -Werror"
1206 CPPFLAGS="$TARGET_CPPFLAGS"
1207 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1208 [grub_cv_target_cc_mno_movt="$cand"], [])
1212 if test x"$grub_cv_target_cc_mno_movt" != xno ; then
1213 # A trick so that clang doesn't see it on link stage
1214 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_mno_movt"
1216 AC_CACHE_CHECK([whether option -mthumb-interwork works], grub_cv_cc_mthumb_interwork, [
1217 CFLAGS="$TARGET_CFLAGS -mthumb-interwork -Werror"
1218 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1219 [grub_cv_cc_mthumb_interwork=yes],
1220 [grub_cv_cc_mthumb_interwork=no])
1222 if test "x$grub_cv_cc_mthumb_interwork" = xyes; then
1223 TARGET_CFLAGS="$TARGET_CFLAGS -mthumb-interwork"
1224 # Clang defaults to thumb interworking
1225 elif test "x$grub_cv_cc_target_clang" = xno ; then
1226 AC_MSG_ERROR([your compiler doesn't support -mthumb-interwork])
1230 AC_CACHE_CHECK([whether option -Qn works], grub_cv_target_cc_qn, [
1231 CFLAGS="$TARGET_CFLAGS -Qn -Qunused-arguments -Werror"
1232 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1233 [grub_cv_target_cc_qn=yes],
1234 [grub_cv_target_cc_qn=no])])
1235 if test "x$grub_cv_target_cc_qn" = xyes; then
1236 TARGET_CFLAGS="$TARGET_CFLAGS -Qn -Qunused-arguments"
1240 # Compiler features.
1243 CFLAGS="$TARGET_CFLAGS"
1245 # Position independent executable.
1248 grub_CHECK_NO_PIE_ONEWORD
1250 [# Need that, because some distributions ship compilers that include
1251 # `-fPIE' or '-fpie' and '-pie' in the default specs.
1252 if [ x"$pie_possible" = xyes ]; then
1253 TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIE -fno-pie"
1256 if [ x"$link_nopie_needed" = xyes ] || [ x"$pie_possible" = xyes ]; then
1257 if [ x"$nopie_possible" = xyes ]; then
1258 TARGET_LDFLAGS="$TARGET_LDFLAGS -no-pie"
1260 if [ x"$nopie_oneword_possible" = xyes ]; then
1261 TARGET_LDFLAGS="$TARGET_LDFLAGS -nopie"
1265 CFLAGS="$TARGET_CFLAGS"
1266 LDFLAGS="$TARGET_LDFLAGS"
1268 # Position independent executable.
1270 [# On most platforms we don't want PIC as it only makes relocations harder
1271 # and code less efficient. On mips we want to have one got table per module
1272 # and reload $gp in every function.
1273 # GCC implements it using symbol __gnu_local_gp in non-PIC as well.
1274 # However with clang we need PIC for this reloading to happen.
1275 # With arm64 we need relocations that are in some way representable in
1276 # PE as we need to support arm64-efi. Without -fPIC clang generates
1277 # movk's which aren't representable.
1278 # Since default varies across dictributions use either -fPIC or -fno-PIC
1280 if ( test x$target_cpu = xmips || test x$target_cpu = xmipsel || test x$target_cpu = xarm64 ) && test "x$grub_cv_cc_target_clang" = xyes ; then
1281 TARGET_CFLAGS="$TARGET_CFLAGS -fPIC"
1282 elif [ x"$pic_possible" = xyes ]; then
1283 TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIC"
1286 CFLAGS="$TARGET_CFLAGS"
1288 # Smashing stack protector.
1289 grub_CHECK_STACK_PROTECTOR
1290 # Need that, because some distributions ship compilers that include
1291 # `-fstack-protector' in the default specs.
1292 if test "x$ssp_possible" = xyes; then
1293 TARGET_CFLAGS="$TARGET_CFLAGS -fno-stack-protector"
1296 CFLAGS="$TARGET_CFLAGS"
1298 grub_CHECK_STACK_ARG_PROBE
1299 # Cygwin's GCC uses alloca() to probe the stackframe on static
1300 # stack allocations above some threshold.
1301 if test x"$sap_possible" = xyes; then
1302 TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
1305 CFLAGS="$TARGET_CFLAGS"
1307 # -mno-unaligned-access -mstrict-align
1308 if test "$target_cpu" = arm; then
1309 AC_CACHE_CHECK([for compile options to get strict alignment], [grub_cv_target_cc_strict_align], [
1310 grub_cv_target_cc_strict_align=
1311 for arg in -mno-unaligned-access "-Xclang -mstrict-align" -mstrict-align; do
1312 CFLAGS="$TARGET_CFLAGS $arg -Werror"
1313 LDFLAGS="$TARGET_LDFLAGS"
1314 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [flag=1], [flag=0])
1315 if test x"$flag" = x1; then
1316 grub_cv_target_cc_strict_align="$arg"
1321 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_strict_align"
1322 if test x"$grub_cv_target_cc_strict_align" = x"-Xclang -mstrict-align"; then
1323 TARGET_LDFLAGS="$TARGET_LDFLAGS -Qunused-arguments"
1325 AC_CACHE_CHECK([if compiler generates unaligned accesses], [grub_cv_cc_target_emits_unaligned],
1326 [CFLAGS="$TARGET_CFLAGS"
1327 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
1328 #ifdef __ARM_FEATURE_UNALIGNED
1332 [grub_cv_cc_target_emits_unaligned=no], [grub_cv_cc_target_emits_unaligned=yes])])
1333 if test x$grub_cv_cc_target_emits_unaligned = xyes; then
1334 AC_MSG_ERROR([compiler generates unaligned accesses])
1338 # Set them to their new values for the tests below.
1340 if test x"$platform" = xemu ; then
1341 CFLAGS="$TARGET_CFLAGS -Wno-error"
1342 elif test "x$TARGET_APPLE_LINKER" = x1 ; then
1343 CFLAGS="$TARGET_CFLAGS -nostdlib -static -Wno-error"
1345 CFLAGS="$TARGET_CFLAGS -nostdlib -Wno-error"
1347 CPPFLAGS="$TARGET_CPPFLAGS"
1350 if test "x$TARGET_APPLE_LINKER" = x0 && test x"$platform" != xemu; then
1351 if test x$grub_cv_asm_uscore = xyes; then
1352 DEFSYM="-Wl,--defsym,_abort=_main -Wl,--defsym,__main=_main"
1354 DEFSYM="-Wl,--defsym,abort=main -Wl,--defsym,_main=main -Wl,--defsym,__main=main"
1356 CFLAGS="$TARGET_CFLAGS -nostdlib $DEFSYM"
1359 # Check for libgcc symbols
1360 if test x"$platform" = xemu; then
1361 AC_CHECK_FUNCS(__udivsi3 __umodsi3 __divsi3 __modsi3 __divdi3 __moddi3 __udivdi3 __umoddi3 __ctzdi2 __ctzsi2 __aeabi_uidiv __aeabi_uidivmod __aeabi_idiv __aeabi_idivmod __aeabi_ulcmp __muldi3 __aeabi_lmul __aeabi_memcpy __aeabi_memcpy4 __aeabi_memcpy8 __aeabi_memclr __aeabi_memclr4 __aeabi_memclr8 __aeabi_memset __aeabi_lasr __aeabi_llsl __aeabi_llsr _restgpr_14_x __ucmpdi2 __ashldi3 __ashrdi3 __lshrdi3 __bswapsi2 __bswapdi2 __bzero __register_frame_info __deregister_frame_info ___chkstk_ms __chkstk_ms)
1364 if test "x$TARGET_APPLE_LINKER" = x1 ; then
1365 CFLAGS="$TARGET_CFLAGS -nostdlib -static"
1367 CFLAGS="$TARGET_CFLAGS -nostdlib"
1371 # Defined in aclocal.m4.
1373 if test "x$TARGET_APPLE_LINKER" != x1 ; then
1374 grub_PROG_OBJCOPY_ABSOLUTE
1376 grub_PROG_LD_BUILD_ID_NONE
1377 if test "x$target_cpu" = xi386; then
1378 if test "$platform" != emu && test "x$TARGET_APPLE_LINKER" != x1 ; then
1379 if test ! -z "$TARGET_IMG_LDSCRIPT"; then
1380 # Check symbols provided by linker script.
1381 CFLAGS="$TARGET_CFLAGS -nostdlib ${TARGET_IMG_LDFLAGS_AC} ${TARGET_IMG_BASE_LDOPT},0x8000"
1383 grub_CHECK_BSS_START_SYMBOL
1384 grub_CHECK_END_SYMBOL
1386 CFLAGS="$TARGET_CFLAGS"
1390 grub_PROG_NM_MINUS_P
1391 grub_PROG_NM_DEFINED_ONLY
1392 AC_SUBST(TARGET_NMFLAGS_MINUS_P)
1393 AC_SUBST(TARGET_NMFLAGS_DEFINED_ONLY)
1395 if test "$platform" != emu; then
1396 AC_CACHE_CHECK([whether -nostdinc -isystem works], [grub_cv_cc_isystem], [
1397 SAVED_CPPFLAGS="$CPPFLAGS"
1398 CPPFLAGS="$TARGET_CPPFLAGS -nostdlib -nostdinc -isystem `$TARGET_CC -print-file-name=include`"
1399 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
1401 int va_arg_func (int fixed, va_list args);]], [[]])],
1402 [grub_cv_cc_isystem=yes],
1403 [grub_cv_cc_isystem=no])
1404 CPPFLAGS="$SAVED_CPPFLAGS"
1407 if test x"$grub_cv_cc_isystem" = xyes ; then
1408 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -nostdinc -isystem `$TARGET_CC -print-file-name=include`"
1412 AC_CACHE_CHECK([whether -Wtrampolines work], [grub_cv_cc_wtrampolines], [
1413 CFLAGS="$TARGET_CFLAGS -Wtrampolines -Werror"
1414 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
1415 int va_arg_func (int fixed, va_list args);]], [[]])],
1416 [grub_cv_cc_wtrampolines=yes],
1417 [grub_cv_cc_wtrampolines=no])
1420 if test x"$grub_cv_cc_wtrampolines" = xyes ; then
1421 TARGET_CFLAGS="$TARGET_CFLAGS -Wtrampolines"
1424 # Restore the flags.
1426 CFLAGS="$tmp_CFLAGS"
1427 CPPFLAGS="$tmp_CPPFLAGS"
1428 LDFLAGS="$tmp_LDFLAGS"
1432 # Check for options.
1435 # Memory manager debugging.
1436 AC_ARG_ENABLE([mm-debug],
1437 AS_HELP_STRING([--enable-mm-debug],
1438 [include memory manager debugging]),
1439 [AC_DEFINE([MM_DEBUG], [1],
1440 [Define to 1 if you enable memory manager debugging.])])
1442 AC_ARG_ENABLE([cache-stats],
1443 AS_HELP_STRING([--enable-cache-stats],
1444 [enable disk cache statistics collection]))
1446 if test x$enable_cache_stats = xyes; then
1451 AC_SUBST([DISK_CACHE_STATS])
1453 AC_ARG_ENABLE([boot-time],
1454 AS_HELP_STRING([--enable-boot-time],
1455 [enable boot time statistics collection]))
1457 if test x$enable_boot_time = xyes; then
1462 AC_SUBST([BOOT_TIME_STATS])
1464 AC_ARG_ENABLE([grub-emu-sdl],
1465 [AS_HELP_STRING([--enable-grub-emu-sdl],
1466 [build and install the `grub-emu' debugging utility with SDL support (default=guessed)])])
1468 AC_ARG_ENABLE([grub-emu-pci],
1469 [AS_HELP_STRING([--enable-grub-emu-pci],
1470 [build and install the `grub-emu' debugging utility with PCI support (potentially dangerous) (default=no)])])
1472 if test "$platform" = emu; then
1474 if test x"$enable_grub_emu_sdl" = xno ; then
1475 grub_emu_sdl_excuse="explicitly disabled"
1477 [if [ x"$grub_emu_sdl_excuse" = x ]; then
1478 # Check for libSDL libraries.]
1479 AC_CHECK_LIB([SDL], [SDL_Init], [LIBSDL="-lSDL"],
1480 [grub_emu_sdl_excuse=["libSDL libraries are required to build \`grub-emu' with SDL support"]])
1484 [if [ x"$grub_emu_sdl_excuse" = x ]; then
1485 # Check for headers.]
1486 AC_CHECK_HEADERS([SDL/SDL.h], [],
1487 [grub_emu_sdl_excuse=["libSDL header file is required to build \`grub-emu' with SDL support"]])
1490 if test x"enable_grub_emu_sdl" = xyes && test x"$grub_emu_sdl_excuse" != x ; then
1491 AC_MSG_ERROR([SDL support for grub-emu was explicitly requested but can't be compiled ($grub_emu_sdl_excuse)])
1493 if test x"$grub_emu_sdl_excuse" = x ; then
1494 enable_grub_emu_sdl=yes
1496 enable_grub_emu_sdl=no
1499 if test x"$enable_grub_emu_pci" != xyes ; then
1500 grub_emu_pci_excuse="not enabled"
1503 [if [ x"$grub_emu_pci_excuse" = x ]; then
1504 # Check for libpci libraries.]
1505 AC_CHECK_LIB([pciaccess], [pci_system_init], [LIBPCIACCESS="-lpciaccess"],
1506 [grub_emu_pci_excuse=["need libpciaccess library"]])
1507 AC_SUBST([LIBPCIACCESS])
1509 [if [ x"$grub_emu_pci_excuse" = x ]; then
1510 # Check for headers.]
1511 AC_CHECK_HEADERS([pciaccess.h], [],
1512 [grub_emu_pci_excuse=["need libpciaccess headers"]])
1515 if test x"$grub_emu_pci_excuse" = x ; then
1516 enable_grub_emu_pci=yes
1519 enable_grub_emu_pci=no
1522 AC_SUBST([enable_grub_emu_sdl])
1523 AC_SUBST([enable_grub_emu_pci])
1527 # Ignore --enable-emu-* if platform is not emu
1528 enable_grub_emu_sdl=no
1529 enable_grub_emu_pci=no
1532 AC_ARG_ENABLE([grub-mkfont],
1533 [AS_HELP_STRING([--enable-grub-mkfont],
1534 [build and install the `grub-mkfont' utility (default=guessed)])])
1535 if test x"$enable_grub_mkfont" = xno ; then
1536 grub_mkfont_excuse="explicitly disabled"
1539 unset ac_cv_header_ft2build_h
1541 if test x"$grub_mkfont_excuse" = x ; then
1542 # Check for freetype libraries.
1543 PKG_CHECK_MODULES([FREETYPE], [freetype2], [
1544 SAVED_CPPFLAGS="$CPPFLAGS"
1546 CPPFLAGS="$CPPFLAGS $FREETYPE_CFLAGS"
1547 LIBS="$LIBS $FREETYPE_LIBS"
1548 AC_CHECK_HEADERS([ft2build.h], [],
1549 [grub_mkfont_excuse=["need freetype2 headers"]])
1550 AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [],
1551 [grub_mkfont_excuse=["freetype2 library unusable"]])
1552 CPPFLAGS="$SAVED_CPPFLAGS"
1554 ], [grub_mkfont_excuse=["need freetype2 library"]])
1557 if test x"$enable_grub_mkfont" = xyes && test x"$grub_mkfont_excuse" != x ; then
1558 AC_MSG_ERROR([grub-mkfont was explicitly requested but can't be compiled ($grub_mkfont_excuse)])
1560 if test x"$grub_mkfont_excuse" = x ; then
1561 enable_grub_mkfont=yes
1563 enable_grub_mkfont=no
1565 AC_SUBST([enable_grub_mkfont])
1569 SAVED_CFLAGS="$CFLAGS"
1570 SAVED_CPPFLAGS="$CPPFLAGS"
1571 SAVED_LDFLAGS="$LDFLAGS"
1574 CFLAGS="$BUILD_CFLAGS"
1575 CPPFLAGS="$BUILD_CPPFLAGS"
1576 LDFLAGS="$BUILD_LDFAGS"
1578 unset ac_cv_c_bigendian
1579 unset ac_cv_header_ft2build_h
1581 AC_COMPUTE_INT([BUILD_SIZEOF_VOID_P], [sizeof (void *)])
1582 AC_COMPUTE_INT([BUILD_SIZEOF_LONG], [sizeof (long)])
1583 AC_C_BIGENDIAN([BUILD_WORDS_BIGENDIAN=1], [BUILD_WORDS_BIGENDIAN=0], [BUILD_WORDS_BIGENDIAN=err], [BUILD_WORDS_BIGENDIAN=err])
1585 if test x$BUILD_WORDS_BIGENDIAN = xerr ; then
1586 AC_MSG_ERROR([couldnt determine build endianness])
1589 AC_SUBST([BUILD_SIZEOF_LONG])
1590 AC_SUBST([BUILD_SIZEOF_VOID_P])
1591 AC_SUBST([BUILD_WORDS_BIGENDIAN])
1593 if test x"$grub_build_mkfont_excuse" = x ; then
1594 # Check for freetype libraries.
1595 SAVED_PKG_CONFIG="$PKG_CONFIG"
1596 test -z "$BUILD_PKG_CONFIG" || PKG_CONFIG="$BUILD_PKG_CONFIG"
1597 PKG_CHECK_MODULES([BUILD_FREETYPE], [freetype2], [
1598 SAVED_CPPFLAGS_2="$CPPFLAGS"
1600 CPPFLAGS="$CPPFLAGS $BUILD_FREETYPE_CFLAGS"
1601 LIBS="$LIBS $BUILD_FREETYPE_LIBS"
1602 AC_CHECK_HEADERS([ft2build.h], [],
1603 [grub_build_mkfont_excuse=["need freetype2 headers"]])
1604 AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [],
1605 [grub_build_mkfont_excuse=["freetype2 library unusable"]])
1607 CPPFLAGS="$SAVED_CPPFLAGS_2"
1608 ], [grub_build_mkfont_excuse=["need freetype2 library"]])
1609 PKG_CONFIG="$SAVED_PKG_CONFIG"
1612 if test x"$enable_build_grub_mkfont" = xyes && test x"$grub_build_mkfont_excuse" != x ; then
1613 AC_MSG_ERROR([build-grub-mkfont was explicitly requested but can't be compiled ($grub_build_mkfont_excuse)])
1615 if test x"$grub_build_mkfont_excuse" = x ; then
1616 enable_build_grub_mkfont=yes
1618 enable_build_grub_mkfont=no
1620 if test x"$enable_build_grub_mkfont" = xno && ( test "x$platform" = xqemu || test "x$platform" = xloongson || test "x$platform" = xqemu_mips || test "x$platform" = xcoreboot ); then
1621 if test x"$grub_build_mkfont_excuse" = x ; then
1622 AC_MSG_ERROR([qemu, coreboot and loongson ports need build-time grub-mkfont])
1624 AC_MSG_ERROR([qemu, coreboot and loongson ports need build-time grub-mkfont ($grub_build_mkfont_excuse)])
1630 CFLAGS="$SAVED_CFLAGS"
1631 CPPFLAGS="$SAVED_CPPFLAGS"
1632 LDFLAGS="$SAVED_LDFLAGS"
1639 AC_ARG_ENABLE([grub-themes],
1640 [AS_HELP_STRING([--enable-grub-themes],
1641 [build and install GRUB themes (default=guessed)])])
1642 if test x"$enable_grub_themes" = xno ; then
1643 starfield_excuse="explicitly disabled"
1646 if test x"$starfield_excuse" = x && test x"$enable_build_grub_mkfont" = xno ; then
1647 starfield_excuse="No build-time grub-mkfont"
1650 if test x"$starfield_excuse" = x; then
1651 for ext in pcf pcf.gz bdf bdf.gz ttf ttf.gz; do
1652 for dir in . /usr/src /usr/share/fonts/X11/misc /usr/share/fonts/truetype/ttf-dejavu /usr/share/fonts/dejavu /usr/share/fonts/truetype; do
1653 if test -f "$dir/DejaVuSans.$ext"; then
1654 DJVU_FONT_SOURCE="$dir/DejaVuSans.$ext"
1660 if test "x$DJVU_FONT_SOURCE" = x; then
1661 starfield_excuse="No DejaVu found"
1665 if test x"$enable_grub_themes" = xyes && test x"$starfield_excuse" != x; then
1666 AC_MSG_ERROR([themes were explicitly requested but requirements are not satisfied ($starfield_excuse)])
1669 AC_SUBST([DJVU_FONT_SOURCE])
1673 for ext in pcf pcf.gz bdf bdf.gz ttf ttf.gz; do
1674 for dir in . /usr/src /usr/share/fonts/X11/misc /usr/share/fonts/unifont /usr/share/fonts/uni /usr/share/fonts/truetype/unifont /usr/share/fonts/misc; do
1675 if test -f "$dir/unifont.$ext"; then
1676 md5="$(md5sum "$dir/unifont.$ext"|awk '{ print $1; }')"
1677 # PCF and BDF from version 6.3 isn't hanled properly by libfreetype.
1678 if test "$md5" = 0a54834d2788c83886a3e1785a6a1e61 || test "$md5" = 28f2565c7a41d8d407e2551159385edb || test "$md5" = dae5e588461b3b92b87b6ffee734f936 || test "$md5" = 4a3d687aa5bb329ed05f4263a1016791 ; then
1681 FONT_SOURCE="$dir/unifont.$ext"
1687 if test x"$enable_build_grub_mkfont" = xno ; then
1691 if test "x$FONT_SOURCE" = x && ( test "x$platform" = xqemu || test "x$platform" = xloongson || test "x$platform" = xqemu_mips || test "x$platform" = xcoreboot ); then
1692 if test x"$grub_build_mkfont_excuse" = x ; then
1693 AC_MSG_ERROR([qemu, coreboot and loongson ports need unifont])
1695 AC_MSG_ERROR([qemu, coreboot and loongson ports need unifont ($grub_build_mkfont_excuse)])
1699 AC_SUBST([FONT_SOURCE])
1701 if test x"$FONT_SOURCE" = x && test x"$DJVU_FONT_SOURCE" = x && test x"$grub_build_mkfont_excuse" = x; then
1702 grub_build_mkfont_excuse="no fonts"
1706 AC_ARG_ENABLE([grub-mount],
1707 [AS_HELP_STRING([--enable-grub-mount],
1708 [build and install the `grub-mount' utility (default=guessed)])])
1709 if test x"$enable_grub_mount" = xno ; then
1710 grub_mount_excuse="explicitly disabled"
1713 if test x"$grub_mount_excuse" = x ; then
1714 AC_CHECK_LIB([fuse], [fuse_main_real], [],
1715 [grub_mount_excuse="need FUSE library"])
1718 if test x"$grub_mount_excuse" = x ; then
1719 # Check for fuse headers.
1720 SAVED_CPPFLAGS="$CPPFLAGS"
1721 CPPFLAGS="$CPPFLAGS -DFUSE_USE_VERSION=26"
1722 AC_CHECK_HEADERS([fuse/fuse.h], [],
1723 [grub_mount_excuse=["need FUSE headers"]])
1724 CPPFLAGS="$SAVED_CPPFLAGS"
1727 if test x"$enable_grub_mount" = xyes && test x"$grub_mount_excuse" != x ; then
1728 AC_MSG_ERROR([grub-mount was explicitly requested but can't be compiled ($grub_mount_excuse)])
1730 if test x"$grub_mount_excuse" = x ; then
1731 enable_grub_mount=yes
1733 enable_grub_mount=no
1735 AC_SUBST([enable_grub_mount])
1737 AC_ARG_ENABLE([device-mapper],
1738 [AS_HELP_STRING([--enable-device-mapper],
1739 [enable Linux device-mapper support (default=guessed)])])
1740 if test x"$enable_device_mapper" = xno ; then
1741 device_mapper_excuse="explicitly disabled"
1744 if test x"$device_mapper_excuse" = x ; then
1745 # Check for device-mapper header.
1746 AC_CHECK_HEADER([libdevmapper.h], [],
1747 [device_mapper_excuse="need libdevmapper header"])
1750 if test x"$device_mapper_excuse" = x ; then
1751 # Check for device-mapper library.
1752 AC_CHECK_LIB([devmapper], [dm_task_create], [],
1753 [device_mapper_excuse="need devmapper library"])
1756 if test x"$device_mapper_excuse" = x ; then
1757 # Check for device-mapper library.
1758 AC_CHECK_LIB([devmapper], [dm_log_with_errno_init],
1760 [device_mapper_excuse="need devmapper library"])
1763 if test x"$device_mapper_excuse" = x ; then
1764 LIBDEVMAPPER="-ldevmapper"
1765 AC_DEFINE([HAVE_DEVICE_MAPPER], [1],
1766 [Define to 1 if you have the devmapper library.])
1769 AC_SUBST([LIBDEVMAPPER])
1772 if test x$host_kernel = xkfreebsd; then
1773 AC_CHECK_LIB([geom], [geom_gettree], [],
1774 [AC_MSG_ERROR([Your platform requires libgeom])])
1780 AC_ARG_ENABLE([liblzma],
1781 [AS_HELP_STRING([--enable-liblzma],
1782 [enable liblzma integration (default=guessed)])])
1783 if test x"$enable_liblzma" = xno ; then
1784 liblzma_excuse="explicitly disabled"
1787 if test x"$liblzma_excuse" = x ; then
1788 AC_CHECK_LIB([lzma], [lzma_code],
1789 [],[liblzma_excuse="need lzma library"])
1791 if test x"$liblzma_excuse" = x ; then
1792 AC_CHECK_HEADER([lzma.h], [], [liblzma_excuse="need lzma header"])
1795 if test x"$enable_liblzma" = xyes && test x"$liblzma_excuse" != x ; then
1796 AC_MSG_ERROR([liblzma support was explicitly requested but requirements are not satisfied ($liblzma_excuse)])
1800 if test x"$liblzma_excuse" = x ; then
1802 AC_DEFINE([USE_LIBLZMA], [1],
1803 [Define to 1 if you have the LZMA library.])
1808 AC_ARG_ENABLE([libzfs],
1809 [AS_HELP_STRING([--enable-libzfs],
1810 [enable libzfs integration (default=guessed)])])
1811 if test x"$enable_libzfs" = xno ; then
1812 libzfs_excuse="explicitly disabled"
1815 if test x"$libzfs_excuse" = x ; then
1816 # Only check for system headers if libzfs support has not been disabled.
1817 AC_CHECK_HEADERS(libzfs.h libnvpair.h)
1820 if test x"$libzfs_excuse" = x ; then
1821 AC_CHECK_LIB([zfs], [libzfs_init],
1823 [libzfs_excuse="need zfs library"])
1826 if test x"$libzfs_excuse" = x ; then
1827 AC_CHECK_LIB([nvpair], [nvlist_lookup_string],
1829 [libzfs_excuse="need nvpair library"])
1832 if test x"$enable_libzfs" = xyes && test x"$libzfs_excuse" != x ; then
1833 AC_MSG_ERROR([libzfs support was explicitly requested but requirements are not satisfied ($libzfs_excuse)])
1836 if test x"$libzfs_excuse" = x ; then
1837 # We need both libzfs and libnvpair for a successful build.
1839 AC_DEFINE([HAVE_LIBZFS], [1],
1840 [Define to 1 if you have the ZFS library.])
1841 LIBNVPAIR="-lnvpair"
1842 AC_DEFINE([HAVE_LIBNVPAIR], [1],
1843 [Define to 1 if you have the NVPAIR library.])
1847 AC_SUBST([LIBNVPAIR])
1849 AC_ARG_ENABLE([ubuntu-recovery],
1850 [AS_HELP_STRING([--enable-ubuntu-recovery],
1851 [adjust boot options for the Ubuntu recovery mode (default=no)])],
1852 [], [enable_ubuntu_recovery=no])
1853 if test x"$enable_ubuntu_recovery" = xyes ; then
1858 AC_SUBST([UBUNTU_RECOVERY])
1860 AC_ARG_ENABLE([quiet-boot],
1861 [AS_HELP_STRING([--enable-quiet-boot],
1862 [emit fewer messages at boot time (default=no)])],
1863 [], [enable_quiet_boot=no])
1864 if test x"$enable_quiet_boot" = xyes ; then
1869 AC_SUBST([QUIET_BOOT])
1871 AC_ARG_ENABLE([quick-boot],
1872 [AS_HELP_STRING([--enable-quick-boot],
1873 [bypass boot menu if possible (default=no)])],
1874 [], [enable_quick_boot=no])
1875 if test x"$enable_quick_boot" = xyes ; then
1880 AC_SUBST([QUICK_BOOT])
1884 AC_SUBST([FONT_SOURCE])
1885 AS_IF([test x$target_cpu = xi386 -a x$platform = xqemu],
1886 [AC_SUBST([GRUB_BOOT_MACHINE_LINK_ADDR], 0xffe00)])
1888 AC_SUBST(HAVE_ASM_USCORE)
1889 AC_SUBST(BSS_START_SYMBOL)
1890 AC_SUBST(END_SYMBOL)
1894 AC_ARG_ENABLE([werror],
1895 [AS_HELP_STRING([--disable-werror],
1896 [do not use -Werror when building GRUB])])
1897 if test x"$enable_werror" != xno ; then
1898 TARGET_CFLAGS="$TARGET_CFLAGS -Werror"
1899 HOST_CFLAGS="$HOST_CFLAGS -Werror"
1902 TARGET_CPP="$TARGET_CC -E"
1903 TARGET_CCAS=$TARGET_CC
1905 # Includes which include make-time substitutions. They must come last
1906 # as to avoid executing top_builddir in shell.
1907 HOST_CPPFLAGS="$HOST_CPPFLAGS -I\$(top_builddir)/include"
1908 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -I\$(top_srcdir)/include"
1909 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -I\$(top_builddir)/include"
1911 GRUB_TARGET_CPU="${target_cpu}"
1912 GRUB_PLATFORM="${platform}"
1914 AC_SUBST(GRUB_TARGET_CPU)
1915 AC_SUBST(GRUB_PLATFORM)
1917 AC_SUBST(TARGET_OBJCONV)
1918 AC_SUBST(TARGET_CPP)
1919 AC_SUBST(TARGET_CCAS)
1920 AC_SUBST(TARGET_OBJ2ELF)
1921 AC_SUBST(TARGET_MODULE_FORMAT)
1922 AC_SUBST(TARGET_CC_VERSION)
1924 AC_SUBST(TARGET_CFLAGS)
1925 AC_SUBST(TARGET_LDFLAGS)
1926 AC_SUBST(TARGET_CPPFLAGS)
1927 AC_SUBST(TARGET_CCASFLAGS)
1929 AC_SUBST(TARGET_IMG_LDFLAGS)
1930 AC_SUBST(TARGET_IMG_CFLAGS)
1931 AC_SUBST(TARGET_IMG_BASE_LDOPT)
1932 AC_SUBST(TARGET_APPLE_LINKER)
1934 AC_SUBST(HOST_CFLAGS)
1935 AC_SUBST(HOST_LDFLAGS)
1936 AC_SUBST(HOST_CPPFLAGS)
1937 AC_SUBST(HOST_CCASFLAGS)
1939 AC_SUBST(BUILD_LIBM)
1942 # Automake conditionals
1945 AM_CONDITIONAL([COND_real_platform], [test x$platform != xnone])
1946 AM_CONDITIONAL([COND_emu], [test x$platform = xemu])
1947 AM_CONDITIONAL([COND_i386_pc], [test x$target_cpu = xi386 -a x$platform = xpc])
1948 AM_CONDITIONAL([COND_i386_efi], [test x$target_cpu = xi386 -a x$platform = xefi])
1949 AM_CONDITIONAL([COND_ia64_efi], [test x$target_cpu = xia64 -a x$platform = xefi])
1950 AM_CONDITIONAL([COND_i386_qemu], [test x$target_cpu = xi386 -a x$platform = xqemu])
1951 AM_CONDITIONAL([COND_i386_ieee1275], [test x$target_cpu = xi386 -a x$platform = xieee1275])
1952 AM_CONDITIONAL([COND_i386_coreboot], [test x$target_cpu = xi386 -a x$platform = xcoreboot])
1953 AM_CONDITIONAL([COND_i386_multiboot], [test x$target_cpu = xi386 -a x$platform = xmultiboot])
1954 AM_CONDITIONAL([COND_x86_64_efi], [test x$target_cpu = xx86_64 -a x$platform = xefi])
1955 AM_CONDITIONAL([COND_i386_xen], [test x$target_cpu = xi386 -a x$platform = xxen])
1956 AM_CONDITIONAL([COND_i386_xen_pvh], [test x$target_cpu = xi386 -a x$platform = xxen_pvh])
1957 AM_CONDITIONAL([COND_x86_64_xen], [test x$target_cpu = xx86_64 -a x$platform = xxen])
1958 AM_CONDITIONAL([COND_mips_loongson], [test x$target_cpu = xmipsel -a x$platform = xloongson])
1959 AM_CONDITIONAL([COND_mips_qemu_mips], [test "(" x$target_cpu = xmips -o x$target_cpu = xmipsel ")" -a x$platform = xqemu_mips])
1960 AM_CONDITIONAL([COND_mips_arc], [test "(" x$target_cpu = xmips -o x$target_cpu = xmipsel ")" -a x$platform = xarc])
1961 AM_CONDITIONAL([COND_sparc64_ieee1275], [test x$target_cpu = xsparc64 -a x$platform = xieee1275])
1962 AM_CONDITIONAL([COND_sparc64_emu], [test x$target_cpu = xsparc64 -a x$platform = xemu])
1963 AM_CONDITIONAL([COND_powerpc_ieee1275], [test x$target_cpu = xpowerpc -a x$platform = xieee1275])
1964 AM_CONDITIONAL([COND_mips], [test x$target_cpu = xmips -o x$target_cpu = xmipsel])
1965 AM_CONDITIONAL([COND_mipsel], [test x$target_cpu = xmipsel])
1966 AM_CONDITIONAL([COND_mipseb], [test x$target_cpu = xmips])
1967 AM_CONDITIONAL([COND_arm], [test x$target_cpu = xarm ])
1968 AM_CONDITIONAL([COND_arm_uboot], [test x$target_cpu = xarm -a x$platform = xuboot])
1969 AM_CONDITIONAL([COND_arm_coreboot], [test x$target_cpu = xarm -a x$platform = xcoreboot])
1970 AM_CONDITIONAL([COND_arm_efi], [test x$target_cpu = xarm -a x$platform = xefi])
1971 AM_CONDITIONAL([COND_arm64], [test x$target_cpu = xarm64 ])
1972 AM_CONDITIONAL([COND_arm64_efi], [test x$target_cpu = xarm64 -a x$platform = xefi])
1973 AM_CONDITIONAL([COND_riscv32], [test x$target_cpu = xriscv32 ])
1974 AM_CONDITIONAL([COND_riscv64], [test x$target_cpu = xriscv64 ])
1975 AM_CONDITIONAL([COND_riscv32_efi], [test x$target_cpu = xriscv32 -a x$platform = xefi])
1976 AM_CONDITIONAL([COND_riscv64_efi], [test x$target_cpu = xriscv64 -a x$platform = xefi])
1978 AM_CONDITIONAL([COND_HOST_HURD], [test x$host_kernel = xhurd])
1979 AM_CONDITIONAL([COND_HOST_LINUX], [test x$host_kernel = xlinux])
1980 AM_CONDITIONAL([COND_HOST_NETBSD], [test x$host_kernel = xnetbsd])
1981 AM_CONDITIONAL([COND_HOST_WINDOWS], [test x$host_kernel = xwindows])
1982 AM_CONDITIONAL([COND_HOST_KFREEBSD], [test x$host_kernel = xkfreebsd])
1983 AM_CONDITIONAL([COND_HOST_XNU], [test x$host_kernel = xxnu])
1984 AM_CONDITIONAL([COND_HOST_ILLUMOS], [test x$host_kernel = xillumos])
1986 AM_CONDITIONAL([COND_MAN_PAGES], [test x$cross_compiling = xno -a x$HELP2MAN != x])
1987 AM_CONDITIONAL([COND_GRUB_EMU_SDL], [test x$enable_grub_emu_sdl = xyes])
1988 AM_CONDITIONAL([COND_GRUB_EMU_PCI], [test x$enable_grub_emu_pci = xyes])
1989 AM_CONDITIONAL([COND_GRUB_MKFONT], [test x$enable_grub_mkfont = xyes])
1990 AM_CONDITIONAL([COND_GRUB_MOUNT], [test x$enable_grub_mount = xyes])
1991 AM_CONDITIONAL([COND_HAVE_FONT_SOURCE], [test x$FONT_SOURCE != x])
1992 if test x$FONT_SOURCE != x ; then
1997 AC_SUBST(HAVE_FONT_SOURCE)
1998 AM_CONDITIONAL([COND_APPLE_LINKER], [test x$TARGET_APPLE_LINKER = x1])
1999 AM_CONDITIONAL([COND_ENABLE_EFIEMU], [test x$enable_efiemu = xyes])
2000 AM_CONDITIONAL([COND_ENABLE_CACHE_STATS], [test x$DISK_CACHE_STATS = x1])
2001 AM_CONDITIONAL([COND_ENABLE_BOOT_TIME_STATS], [test x$BOOT_TIME_STATS = x1])
2003 AM_CONDITIONAL([COND_HAVE_CXX], [test x$HAVE_CXX = xyes])
2005 AM_CONDITIONAL([COND_HAVE_ASM_USCORE], [test x$HAVE_ASM_USCORE = x1])
2006 AM_CONDITIONAL([COND_STARFIELD], [test "x$starfield_excuse" = x])
2007 AM_CONDITIONAL([COND_HAVE_EXEC], [test "x$have_exec" = xy])
2009 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
2010 test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
2011 datarootdir="$(eval echo "$datarootdir")"
2012 grub_libdir="$(eval echo "$libdir")"
2013 grub_localedir="$(eval echo "$localedir")"
2014 grub_datadir="$(eval echo "$datadir")"
2015 grub_sysconfdir="$(eval echo "$sysconfdir")"
2016 AC_DEFINE_UNQUOTED(LOCALEDIR, "$grub_localedir", [Locale dir])
2017 AC_DEFINE_UNQUOTED(GRUB_LIBDIR, "$grub_libdir", [Library dir])
2018 AC_DEFINE_UNQUOTED(GRUB_DATADIR, "$grub_datadir", [Data dir])
2019 AC_DEFINE_UNQUOTED(GRUB_SYSCONFDIR, "$grub_sysconfdir", [Configuration dir])
2023 if test "$platform" != none; then
2024 cpudir="${target_cpu}"
2025 if test x${cpudir} = xmipsel; then
2029 if test x"$link_dir" = xyes ; then
2030 AC_CONFIG_LINKS([include/grub/cpu:include/grub/$cpudir])
2031 if test "$platform" != emu ; then
2032 AC_CONFIG_LINKS([include/grub/machine:include/grub/$cpudir/$platform])
2035 mkdir -p include/grub 2>/dev/null
2036 rm -rf include/grub/cpu
2037 cp -rp $srcdir/include/grub/$cpudir include/grub/cpu 2>/dev/null
2038 if test "$platform" != emu ; then
2039 rm -rf include/grub/machine
2040 cp -rp $srcdir/include/grub/$cpudir/$platform include/grub/machine 2>/dev/null
2044 # Just enough to stop the compiler failing with -I$(srcdir)/include.
2045 mkdir -p include 2>/dev/null
2046 rm -rf include/grub/cpu include/grub/machine
2049 AC_CONFIG_FILES([Makefile])
2050 AC_CONFIG_FILES([grub-core/Makefile])
2051 AC_CONFIG_FILES([grub-core/lib/gnulib/Makefile])
2052 AC_CONFIG_FILES([po/Makefile.in])
2053 AC_CONFIG_FILES([docs/Makefile])
2054 AC_CONFIG_FILES([util/bash-completion.d/Makefile])
2055 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
2056 AC_CONFIG_FILES([config.h])
2060 echo "*******************************************************"
2061 echo GRUB2 will be compiled with following components:
2062 echo Platform: "$target_cpu"-"$platform"
2063 if [ x"$platform" = xemu ]; then
2064 if [ x"$grub_emu_sdl_excuse" = x ]; then
2065 echo SDL support for grub-emu: Yes
2067 echo SDL support for grub-emu: No "($grub_emu_sdl_excuse)"
2069 if [ x"$grub_emu_pci_excuse" = x ]; then
2070 echo PCI support for grub-emu: Yes
2072 echo PCI support for grub-emu: No "($grub_emu_pci_excuse)"
2075 if test x"$device_mapper_excuse" = x ; then
2076 echo With devmapper support: Yes
2078 echo With devmapper support: No "($device_mapper_excuse)"
2080 if [ x"$enable_mm_debug" = xyes ]; then
2081 echo With memory debugging: Yes
2083 echo With memory debugging: No
2085 if [ x"$enable_cache_stats" = xyes ]; then
2086 echo With disk cache statistics: Yes
2088 echo With disk cache statistics: No
2091 if [ x"$enable_boot_time" = xyes ]; then
2092 echo With boot time statistics: Yes
2094 echo With boot time statistics: No
2097 if [ x"$efiemu_excuse" = x ]; then
2098 echo efiemu runtime: Yes
2100 echo efiemu runtime: No "($efiemu_excuse)"
2102 if [ x"$grub_mkfont_excuse" = x ]; then
2103 echo grub-mkfont: Yes
2105 echo grub-mkfont: No "($grub_mkfont_excuse)"
2107 if [ x"$grub_mount_excuse" = x ]; then
2108 echo grub-mount: Yes
2110 echo grub-mount: No "($grub_mount_excuse)"
2112 if [ x"$starfield_excuse" = x ]; then
2113 echo starfield theme: Yes
2114 echo With DejaVuSans font from $DJVU_FONT_SOURCE
2116 echo starfield theme: No "($starfield_excuse)"
2118 if [ x"$libzfs_excuse" = x ]; then
2119 echo With libzfs support: Yes
2121 echo With libzfs support: No "($libzfs_excuse)"
2123 if [ x"$grub_build_mkfont_excuse" = x ]; then
2124 echo Build-time grub-mkfont: Yes
2125 if test "x$FONT_SOURCE" = x ; then
2126 echo "Without unifont"
2128 echo "With unifont from $FONT_SOURCE"
2131 echo Build-time grub-mkfont: No "($grub_build_mkfont_excuse)"
2132 echo "Without unifont (no build-time grub-mkfont)"
2134 if test x"$liblzma_excuse" != x ; then
2135 echo "Without liblzma (no support for XZ-compressed mips images) ($liblzma_excuse)"
2137 echo "With liblzma from $LIBLZMA (support for XZ-compressed mips images)"
2139 if [ x"$enable_quiet_boot" = xyes ]; then
2140 echo With quiet boot: Yes
2142 echo With quiet boot: No
2144 echo "*******************************************************"