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],[2.02],[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([1.10.1])
50 AC_CONFIG_SRCDIR([include/grub/dl.h])
51 AC_CONFIG_HEADER([config-util.h])
53 # Program name transformations
55 grub_TRANSFORM([grub-bios-setup])
56 grub_TRANSFORM([grub-editenv])
57 grub_TRANSFORM([grub-install])
58 grub_TRANSFORM([grub-mkconfig])
59 grub_TRANSFORM([grub-mkfont])
60 grub_TRANSFORM([grub-mkimage])
61 grub_TRANSFORM([grub-glue-efi])
62 grub_TRANSFORM([grub-mklayout])
63 grub_TRANSFORM([grub-mkpasswd-pbkdf2])
64 grub_TRANSFORM([grub-mkrelpath])
65 grub_TRANSFORM([grub-mkrescue])
66 grub_TRANSFORM([grub-probe])
67 grub_TRANSFORM([grub-reboot])
68 grub_TRANSFORM([grub-script-check])
69 grub_TRANSFORM([grub-set-default])
70 grub_TRANSFORM([grub-sparc64-setup])
71 grub_TRANSFORM([grub-render-label])
72 grub_TRANSFORM([grub-file])
74 # Optimization flag. Allow user to override.
75 if test "x$TARGET_CFLAGS" = x; then
76 TARGET_CFLAGS="$TARGET_CFLAGS -Os"
79 # Default HOST_CPPFLAGS
80 HOST_CPPFLAGS="$HOST_CPPFLAGS -Wall -W"
81 HOST_CPPFLAGS="$HOST_CPPFLAGS -DGRUB_UTIL=1"
83 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -Wall -W"
86 i[[3456]]86) target_cpu=i386 ;;
87 amd64) target_cpu=x86_64 ;;
88 sparc) target_cpu=sparc64 ;;
91 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_CPU_MIPSEL=1"
95 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_CPU_MIPS=1"
105 # Specify the platform (such as firmware).
106 AC_ARG_WITH([platform],
107 AS_HELP_STRING([--with-platform=PLATFORM],
108 [select the host platform [[guessed]]]))
110 # Guess the platform if not specified.
111 if test "x$with_platform" = x; then
112 case "$target_cpu"-"$target_vendor" in
113 i386-apple) platform=efi ;;
114 i386-*) platform=pc ;;
115 x86_64-apple) platform=efi ;;
116 x86_64-*) platform=pc ;;
117 powerpc-*) platform=ieee1275 ;;
118 powerpc64-*) platform=ieee1275 ;;
119 powerpc64le-*) platform=ieee1275 ;;
120 sparc64-*) platform=ieee1275 ;;
121 mipsel-*) platform=loongson ;;
122 mips-*) platform=arc ;;
123 ia64-*) platform=efi ;;
124 arm-*) platform=uboot ;;
125 arm64-*) platform=efi ;;
127 AC_MSG_WARN([unsupported CPU: "$target_cpu" - only building utilities])
132 platform="$with_platform"
135 case "$target_cpu"-"$platform" in
140 x86_64-*) target_cpu=i386 ;;
141 powerpc64-ieee1275) target_cpu=powerpc ;;
142 powerpc64le-ieee1275) target_cpu=powerpc ;;
145 # Check if the platform is supported, make final adjustments.
146 case "$target_cpu"-"$platform" in
154 i386-linuxbios) platform=coreboot ;;
161 mips-qemu-mips) platform=qemu_mips;;
165 mipsel-qemu-mips) platform=qemu_mips;;
166 mipsel-yeeloong) platform=loongson ;;
167 mipsel-fuloong) platform=loongson ;;
174 *) AC_MSG_ERROR([platform "$platform" is not supported for target CPU "$target_cpu"]) ;;
177 if test x$platform != xemu ; then
178 case "$target_cpu" in
179 i386 | powerpc) target_m32=1 ;;
180 x86_64 | sparc64) target_m64=1 ;;
184 if test x"$target_cpu-$platform" = xsparc64-emu ; then
189 windows* | mingw32*) target_os=cygwin ;;
192 # This normalizes the names, and creates a new variable ("host_kernel")
193 # while at it, since the mapping is not always 1:1 (e.g. different OSes
194 # using the same kernel type).
196 gnu*) host_kernel=hurd ;;
197 linux*) host_kernel=linux ;;
198 freebsd* | kfreebsd*-gnu) host_kernel=kfreebsd ;;
199 netbsd*) host_kernel=netbsd ;;
200 solaris*) host_kernel=illumos ;;
201 darwin*) host_kernel=xnu ;;
202 cygwin | windows* | mingw32*) host_kernel=windows ;;
206 cygwin | windows* | mingw32*) have_exec=n ;;
207 aros*) have_exec=n ;;
212 coreboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_COREBOOT=1" ;;
213 multiboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MULTIBOOT=1" ;;
214 efi) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_EFI=1" ;;
215 xen) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_XEN=1" ;;
216 ieee1275) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_IEEE1275=1" ;;
217 uboot) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_UBOOT=1" ;;
218 qemu) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_QEMU=1" ;;
219 pc) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_PCBIOS=1" ;;
220 emu) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_EMU=1" ;;
221 loongson) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_LOONGSON=1" ;;
222 qemu_mips) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_MIPS_QEMU_MIPS=1" ;;
223 arc) machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE_ARC=1" ;;
225 if test x${target_cpu} = xmipsel ; then
226 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE=`echo mips_$platform | sed y,abcdefghijklmnopqrstuvwxyz,ABCDEFGHIJKLMNOPQRSTUVWXYZ,`"
228 machine_CPPFLAGS="$machine_CPPFLAGS -DGRUB_MACHINE=`echo ${target_cpu}_$platform | sed y,abcdefghijklmnopqrstuvwxyz,ABCDEFGHIJKLMNOPQRSTUVWXYZ,`"
231 case "${target_cpu}-$platform" in
233 TARGET_LINK_ADDR=0x88200000
234 TARGET_DECOMPRESSOR_LINK_ADDR=0x88100000
237 TARGET_LINK_ADDR=0x80700000
238 TARGET_DECOMPRESSOR_LINK_ADDR=0x80600000
240 mips*-qemu_mips | mips*-loongson)
241 TARGET_DECOMPRESSOR_LINK_ADDR=0x80100000
245 AC_SUBST(TARGET_LINK_ADDR)
246 AC_SUBST(TARGET_DECOMPRESSOR_LINK_ADDR)
248 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $machine_CPPFLAGS"
252 AC_SUBST(host_kernel)
257 # Define default variables
260 AC_ARG_WITH([bootdir],
261 AS_HELP_STRING([--with-bootdir=DIR],
262 [set the name of /boot directory [[guessed]]]),
263 [have_with_bootdir=y],
264 [have_with_bootdir=n])
265 if test x$have_with_bootdir = xy; then
266 bootdirname="$with_bootdir"
270 # Because /boot is used for the boot block in NetBSD and OpenBSD,
272 *) bootdirname='boot' ;;
276 AC_SUBST(bootdirname)
277 AC_DEFINE_UNQUOTED(GRUB_BOOT_DIR_NAME, "$bootdirname",
278 [Default boot directory name]")
280 AC_ARG_WITH([grubdir],
281 AS_HELP_STRING([--with-grubdir=DIR],
282 [set the name of grub directory [[guessed]]]),
283 [grubdirname="$with_grubdir"],
284 [grubdirname="$PACKAGE"])
286 AC_SUBST(grubdirname)
287 AC_DEFINE_UNQUOTED(GRUB_DIR_NAME, "$grubdirname",
288 [Default grub directory name])
291 # Checks for build programs.
294 # Although cmp is listed in the GNU Coding Standards as a command which
295 # can used directly, OpenBSD lacks cmp in the default installation.
296 AC_CHECK_PROGS([CMP], [cmp])
297 if test "x$CMP" = x; then
298 AC_MSG_ERROR([cmp is not found])
301 AC_CHECK_PROGS([YACC], [bison])
302 if test "x$YACC" = x; then
303 AC_MSG_ERROR([bison is not found])
315 if test "x$LEX" = "x:"; then
316 AC_MSG_ERROR([flex is not found])
318 version=`$LEX --version | $AWK '{ split($2,x,"."); print x[[1]]*10000+x[[2]]*100+x[[3]]; }'`
319 if test -n "$version" -a "$version" -ge 20535; then
322 AC_MSG_ERROR([flex is too old. GRUB requires 2.5.35 or above])
326 # These are not a "must".
327 AC_PATH_PROGS(MAKEINFO, makeinfo true)
330 # Checks for host programs.
340 test "x$GCC" = xyes || AC_MSG_ERROR([GCC is required])
342 AC_CHECK_PROG(HAVE_CXX, $CXX, yes, no)
345 AM_GNU_GETTEXT([external])
348 # Identify characteristics of the host architecture.
349 unset ac_cv_c_bigendian
351 if test x"$target_cpu-$platform" = xsparc64-emu ; then
352 CFLAGS="$CFLAGS -m64"
353 HOST_CFLAGS="$HOST_CFLAGS -m64"
356 CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=64"
357 HOST_CPPFLAGS="$HOST_CPPFLAGS -D_FILE_OFFSET_BITS=64"
360 AC_CHECK_SIZEOF(void *)
361 AC_CHECK_SIZEOF(long)
364 cygwin | windows* | mingw32*)
365 HOST_CPPFLAGS="$HOST_CPPFLAGS -DUNICODE=1 -D_WIN32_WINNT=0x0500"
366 CPPFLAGS="$CPPFLAGS -DUNICODE=1 -D_WIN32_WINNT=0x0500"
367 AC_CHECK_SIZEOF(TCHAR,,[#include <windows.h>])
372 cygwin | windows* | mingw32* | aros*)
375 AC_CHECK_SIZEOF(off_t)
376 test x"$ac_cv_sizeof_off_t" = x8 || AC_MSG_ERROR([Large file support is required]);;
379 if test x$USE_NLS = xno; then
380 HOST_CFLAGS="$HOST_CFLAGS -fno-builtin-gettext"
383 if test "x$cross_compiling" = xyes; then
384 AC_MSG_WARN([cannot generate manual pages while cross compiling])
386 AC_PATH_PROG(HELP2MAN, help2man)
389 # Check for functions and headers.
390 AC_CHECK_FUNCS(posix_memalign memalign getextmntent)
391 AC_CHECK_HEADERS(sys/param.h sys/mount.h sys/mnttab.h limits.h)
393 # glibc 2.25 still includes sys/sysmacros.h in sys/types.h but emits deprecation
394 # warning which causes compilation failure later with -Werror. So use -Werror here
395 # as well to force proper sys/sysmacros.h detection.
396 SAVED_CFLAGS="$CFLAGS"
397 CFLAGS="$HOST_CFLAGS -Werror"
399 CFLAGS="$SAVED_CFLAGS"
401 AC_CHECK_MEMBERS([struct statfs.f_fstypename],,,[$ac_includes_default
402 #include <sys/param.h>
403 #include <sys/mount.h>])
405 AC_CHECK_MEMBERS([struct statfs.f_mntfromname],,,[$ac_includes_default
406 #include <sys/param.h>
407 #include <sys/mount.h>])
409 # For opendisk() and getrawpartition() on NetBSD.
410 # Used in util/deviceiter.c and in util/hostdisk.c.
411 AC_CHECK_HEADER([util.h], [
412 AC_CHECK_LIB([util], [opendisk], [
414 AC_DEFINE(HAVE_OPENDISK, 1, [Define if opendisk() in -lutil can be used])
416 AC_CHECK_LIB([util], [getrawpartition], [
418 AC_DEFINE(HAVE_GETRAWPARTITION, 1, [Define if getrawpartition() in -lutil can be used])
423 AC_CACHE_CHECK([whether -Wtrampolines work], [grub_cv_host_cc_wtrampolines], [
424 SAVED_CFLAGS="$CFLAGS"
425 CFLAGS="$HOST_CFLAGS -Wtrampolines -Werror"
426 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
427 int va_arg_func (int fixed, va_list args);]], [[]])],
428 [grub_cv_host_cc_wtrampolines=yes],
429 [grub_cv_host_cc_wtrampolines=no])
430 CFLAGS="$SAVED_CFLAGS"
433 if test x"$grub_host_cv_cc_wtrampolines" = xyes ; then
434 HOST_CFLAGS="$HOST_CFLAGS -Wtrampolines"
438 # Check for host and build compilers.
441 AC_CHECK_PROGS(BUILD_CC, [gcc egcs cc])
442 test -z "$BUILD_CC" && AC_MSG_ERROR([none of gcc, egcs and cc is found. set BUILD_CC manually.])
443 BUILD_CPP="$BUILD_CC -E"
446 haiku*) BUILD_LIBM= ;;
450 dnl FIXME proper test seems to require too deep dive into Autoconf internals.
451 dnl For now just list known platforms that we support.
454 cygwin*|mingw32*|mingw64*) BUILD_EXEEXT=.exe ;;
457 AC_SUBST(BUILD_EXEEXT)
462 WARN_FLAGS="-Wall -W -Wshadow -Wpointer-arith -Wundef -Wchar-subscripts -Wcomment -Wdeprecated-declarations -Wdisabled-optimization -Wdiv-by-zero -Wfloat-equal -Wformat-extra-args -Wformat-security -Wformat-y2k -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Wmain -Wmissing-braces -Wmissing-format-attribute -Wmultichar -Wparentheses -Wreturn-type -Wsequence-point -Wshadow -Wsign-compare -Wswitch -Wtrigraphs -Wunknown-pragmas -Wunused -Wunused-function -Wunused-label -Wunused-parameter -Wunused-value -Wunused-variable -Wwrite-strings -Wnested-externs -Wstrict-prototypes"
463 EXTRA_WARN_FLAGS="-Wextra -Wattributes -Wendif-labels -Winit-self -Wint-to-pointer-cast -Winvalid-pch -Wmissing-field-initializers -Wnonnull -Woverflow -Wvla -Wpointer-to-int-cast -Wstrict-aliasing -Wvariadic-macros -Wvolatile-register-var -Wpointer-sign -Wmissing-include-dirs -Wmissing-prototypes -Wmissing-declarations -Wformat=2"
465 HOST_CFLAGS="$HOST_CFLAGS $WARN_FLAGS -Wcast-align"
467 AC_CACHE_CHECK([which extra warnings work], [grub_cv_cc_w_extra_flags], [
468 SAVED_CFLAGS="$CFLAGS"
469 grub_cv_cc_w_extra_flags=
470 for x in $EXTRA_WARN_FLAGS; do
471 CFLAGS="$HOST_CFLAGS $x -Werror"
472 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [flag=1], [flag=0])
473 if test x$flag = x1 ; then
474 grub_cv_cc_w_extra_flags="$grub_cv_cc_w_extra_flags $x"
477 CFLAGS="$SAVED_CFLAGS"
480 HOST_CFLAGS="$HOST_CFLAGS $grub_cv_cc_w_extra_flags"
483 # Check for target programs.
486 # Find tools for the target.
487 if test "x$target_alias" != x && test "x$host_alias" != "x$target_alias"; then
488 tmp_ac_tool_prefix="$ac_tool_prefix"
489 ac_tool_prefix=$target_alias-
491 AC_CHECK_TOOLS(TARGET_CC, [gcc egcs cc],
492 [AC_MSG_ERROR([none of gcc, egcs and cc is found. set TARGET_CC manually.])])
493 AC_CHECK_TOOL(TARGET_OBJCOPY, objcopy)
494 AC_CHECK_TOOL(TARGET_STRIP, strip)
495 AC_CHECK_TOOL(TARGET_NM, nm)
496 AC_CHECK_TOOL(TARGET_RANLIB, ranlib)
498 ac_tool_prefix="$tmp_ac_tool_prefix"
500 if test "x$TARGET_CC" = x; then
503 AC_CHECK_TOOL(TARGET_OBJCOPY, objcopy)
504 AC_CHECK_TOOL(TARGET_STRIP, strip)
505 AC_CHECK_TOOL(TARGET_NM, nm)
506 AC_CHECK_TOOL(TARGET_RANLIB, ranlib)
511 AC_SUBST(BUILD_CFLAGS)
512 AC_SUBST(BUILD_CPPFLAGS)
513 AC_SUBST(BUILD_LDFLAGS)
516 AC_SUBST(TARGET_RANLIB)
517 AC_SUBST(TARGET_STRIP)
518 AC_SUBST(TARGET_OBJCOPY)
520 # Test the C compiler for the target environment.
523 tmp_LDFLAGS="$LDFLAGS"
524 tmp_CPPFLAGS="$CPPFLAGS"
527 CFLAGS="$TARGET_CFLAGS"
528 CPPFLAGS="$TARGET_CPPFLAGS"
529 LDFLAGS="$TARGET_LDFLAGS"
533 TARGET_CFLAGS="$TARGET_CFLAGS $WARN_FLAGS -g -Wredundant-decls -Wmissing-prototypes -Wmissing-declarations"
534 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -g"
536 if test "x$target_cpu" != xi386 && test "x$target_cpu" != xx86_64; then
537 TARGET_CFLAGS="$TARGET_CFLAGS -Wcast-align"
540 TARGET_CC_VERSION="$(LC_ALL=C $TARGET_CC --version | head -n1)"
542 AC_CACHE_CHECK([which extra warnings work], [grub_cv_target_cc_w_extra_flags], [
543 LDFLAGS="$TARGET_LDFLAGS -nostdlib -static"
545 grub_cv_target_cc_w_extra_flags=
546 for x in $EXTRA_WARN_FLAGS; do
547 CFLAGS="$TARGET_CFLAGS $x -Werror"
548 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
549 asm (".globl start; start:");
551 void __main (void) {}
553 ]], [[]])], [flag=1], [flag=0])
554 if test x$flag = x1 ; then
555 grub_cv_target_cc_w_extra_flags="$grub_cv_target_cc_w_extra_flags $x"
560 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_w_extra_flags"
562 AC_CACHE_CHECK([if compiling with clang], [grub_cv_cc_target_clang],
564 CFLAGS="$TARGET_CFLAGS"
566 [AC_LANG_PROGRAM([], [[
571 [grub_cv_cc_target_clang=no], [grub_cv_cc_target_clang=yes])])
573 if test x$target_cpu = xpowerpc -o x$target_cpu = xmips; then
574 AC_CACHE_CHECK([for options to get big-endian compilation], grub_cv_target_cc_big_endian, [
575 grub_cv_target_cc_big_endian=no
576 for cand in "-target $target_cpu -Wl,-EB" "-target $target_cpu" \
577 "-target $target_cpu-linux-gnu -Wl,-EB" "-target $target_cpu-linux-gnu" \
578 "-EB" "-mbig-endian"; do
579 if test x"$grub_cv_target_cc_big_endian" != xno ; then
582 CFLAGS="$TARGET_CFLAGS $cand -Werror"
583 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
584 #if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__ORDER_BIG_ENDIAN__ != __BYTE_ORDER__)
585 #error still little endian
587 asm (".globl start; start:");
588 asm (".globl _start; _start:");
589 asm (".globl __start; __start:");
591 void __main (void) {}
594 [grub_cv_target_cc_big_endian="$cand"], [])
598 if test x"$grub_cv_target_cc_big_endian" = xno ; then
599 AC_MSG_ERROR([could not force big-endian])
602 skip_linkflags="$(echo "$grub_cv_target_cc_big_endian"|sed 's@-Wl,-EB@@')"
604 TARGET_CFLAGS="$TARGET_CFLAGS $skip_linkflags"
605 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $skip_linkflags"
606 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $skip_linkflags"
607 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_big_endian"
608 elif test x$target_cpu = xmipsel; then
609 AC_CACHE_CHECK([for options to get little-endian compilation], grub_cv_target_cc_little_endian, [
610 grub_cv_target_cc_little_endian=no
611 for cand in "-target $target_cpu -Wl,-EL" "-target $target_cpu" \
612 "-target $target_cpu-linux-gnu -Wl,-EL" "-target $target_cpu-linux-gnu" \
614 if test x"$grub_cv_target_cc_little_endian" != xno ; then
617 CFLAGS="$TARGET_CFLAGS $cand -Werror"
618 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
619 #if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && (__ORDER_BIG_ENDIAN__ == __BYTE_ORDER__)
620 #error still big endian
622 asm (".globl start; start:");
623 asm (".globl _start; _start:");
624 asm (".globl __start; __start:");
626 void __main (void) {}
629 [grub_cv_target_cc_little_endian="$cand"], [])
633 if test x"$grub_cv_target_cc_little_endian" = xno ; then
634 AC_MSG_ERROR([could not force little-endian])
637 skip_linkflags="$(echo "$grub_cv_target_cc_little_endian"|sed 's@-Wl,-EL@@')"
639 TARGET_CFLAGS="$TARGET_CFLAGS $skip_linkflags"
640 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $skip_linkflags"
641 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $skip_linkflags"
642 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_little_endian"
645 # GRUB code is N32-compliant but it's experimental and we would prefer to
646 # avoid having too much variety when it doesn't result in any real improvement.
647 # Moreover N64 isn't supported.
648 if test "x$target_cpu" = xmips || test "x$target_cpu" = xmipsel ; then
649 AC_CACHE_CHECK([for options to force MIPS o32 ABI], grub_cv_target_cc_mips_o32_abi, [
650 grub_cv_target_cc_mips_o32_abi=no
651 for arg in "" "-mabi=32" "-target $target_cpu -mabi=32" ; do
652 if test x"$grub_cv_target_cc_mips_o32_abi" != xno ; then
655 CFLAGS="$TARGET_CFLAGS $arg -Werror"
656 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
657 #if !defined(_ABIO32) || !defined(_MIPS_SIM) || (_MIPS_SIM != _ABIO32)
660 asm (".globl start; start:");
661 asm (".globl _start; _start:");
662 asm (".globl __start; __start:");
664 void __main (void) {}
667 [grub_cv_target_cc_mips_o32_abi="$arg"], [])
671 if test x"$grub_cv_target_cc_mips_o32_abi" = xno ; then
672 AC_MSG_ERROR([could not force MIPS o32 ABI])
675 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_mips_o32_abi"
676 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_target_cc_mips_o32_abi"
679 AC_CACHE_CHECK([for options to compile assembly], [grub_cv_cc_target_asm_compile], [
681 case "x$target_cpu-$platform" in
691 xpowerpc-* | xsparc64-* | xarm-*)
692 test_program=$target_cpu
695 if test x"$test_program" = x ; then
696 grub_cv_cc_target_asm_compile=
699 for arg in "" "-no-integrated-as"; do
700 cmdline="$TARGET_CC -c -o /dev/null $TARGET_CCASFLAGS $arg $TARGET_CPPFLAGS $srcdir/asm-tests/$test_program.S"
701 echo "Running $cmdline" >&AS_MESSAGE_LOG_FD
702 if $cmdline >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
703 grub_cv_cc_target_asm_compile="$arg"
708 if test x"$found" = xno ; then
709 AC_MSG_ERROR([could not compile assembly])
714 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_cc_target_asm_compile"
716 if test "x$target_cpu" = xi386 && test "x$platform" != xemu; then
717 TARGET_CFLAGS="$TARGET_CFLAGS -march=i386"
720 if test "x$target_m32" = x1; then
722 TARGET_CFLAGS="$TARGET_CFLAGS -m32"
723 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -m32"
724 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -m32"
725 TARGET_LDFLAGS="$TARGET_LDFLAGS -m32"
726 TARGET_MODULE_FORMAT="elf32"
729 if test "x$target_m64" = x1; then
731 TARGET_CFLAGS="$TARGET_CFLAGS -m64"
732 TARGET_CCASFLAGS="$TARGET_CCASFLAGS -m64"
733 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -m64"
734 TARGET_LDFLAGS="$TARGET_LDFLAGS -m64"
735 TARGET_MODULE_FORMAT="elf64"
738 if test "x$grub_cv_cc_target_clang" = xno && test "x$target_cpu" = xi386 && test "x$platform" != xemu && test "x$platform" != xefi; then
739 TARGET_CFLAGS="$TARGET_CFLAGS -mrtd -mregparm=3"
742 # on mips redirect cache flushing function to non-existant one.
743 if test "x$target_cpu" = xmips || test "x$target_cpu" = xmipsel ; then
744 AC_CACHE_CHECK([whether -mflush-func=grub_red_herring works], [grub_cv_cc_mflush_func], [
745 CFLAGS="$TARGET_CFLAGS -mflush-func=grub_red_herring -Werror"
746 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
747 [grub_cv_cc_mflush_func=yes],
748 [grub_cv_cc_mflush_func=no])
751 if test "x$grub_cv_cc_mflush_func" = xyes; then
752 TARGET_CFLAGS="$TARGET_CFLAGS -mflush-func=grub_red_herring"
757 # Force no alignment to save space on i386.
758 if test "x$target_cpu" = xi386; then
759 AC_CACHE_CHECK([whether -falign-loops works], [grub_cv_cc_falign_loop], [
760 CFLAGS="$TARGET_CFLAGS -falign-loops=1 -Werror"
761 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
762 [grub_cv_cc_falign_loop=yes],
763 [grub_cv_cc_falign_loop=no])
766 AC_CACHE_CHECK([whether -malign-loops works], [grub_cv_cc_malign_loop], [
767 CFLAGS="$TARGET_CFLAGS -malign-loops=1 -Werror"
768 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
769 [grub_cv_cc_malign_loop=yes],
770 [grub_cv_cc_malign_loop=no])
773 if test "x$grub_cv_cc_falign_loop" = xyes; then
774 TARGET_CFLAGS="$TARGET_CFLAGS -falign-jumps=1 -falign-loops=1 -falign-functions=1"
775 elif test "x$grub_cv_cc_malign_loop" = xyes; then
776 TARGET_CFLAGS="$TARGET_CFLAGS -malign-jumps=1 -malign-loops=1 -malign-functions=1"
780 AC_CACHE_CHECK([whether -freg-struct-return works], [grub_cv_cc_freg_struct_return], [
781 CFLAGS="$TARGET_CFLAGS -freg-struct-return -Werror"
782 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
783 [grub_cv_cc_freg_struct_return=yes],
784 [grub_cv_cc_freg_struct_return=no])
787 if test "x$grub_cv_cc_freg_struct_return" = xyes; then
788 TARGET_CFLAGS="$TARGET_CFLAGS -freg-struct-return"
791 if ( test "x$target_cpu" = xi386 || test "x$target_cpu" = xx86_64 ) && test "x$platform" != xemu; then
792 # Some toolchains enable these features by default, but they need
793 # registers that aren't set up properly in GRUB.
794 TARGET_CFLAGS="$TARGET_CFLAGS -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow"
797 # GRUB doesn't use float or doubles at all. Yet some toolchains may decide
798 # that floats are a good fit to run instead of what's written in the code.
799 # Given that floating point unit is disabled (if present to begin with)
800 # when GRUB is running which may result in various hard crashes.
801 if test x"$platform" != xemu ; then
802 AC_CACHE_CHECK([for options to get soft-float], grub_cv_target_cc_soft_float, [
803 grub_cv_target_cc_soft_float=no
804 if test "x$target_cpu" = xarm64; then
805 CFLAGS="$TARGET_CFLAGS -mgeneral-regs-only -Werror"
806 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
807 [grub_cv_target_cc_soft_float="-mgeneral-regs-only"], [])
809 if test "x$target_cpu" = xia64; then
810 CFLAGS="$TARGET_CFLAGS -mno-inline-float-divide -mno-inline-sqrt -Werror"
811 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
812 [grub_cv_target_cc_soft_float="-mno-inline-float-divide -mno-inline-sqrt"], [])
814 for cand in "-msoft-float -Xclang -msoft-float -Xclang -no-implicit-float" \
815 "-Xclang -msoft-float -Xclang -no-implicit-float" \
816 "-Xclang -msoft-float" "-msoft-float"; do
817 if test x"$grub_cv_target_cc_soft_float" != xno ; then
820 CFLAGS="$TARGET_CFLAGS $cand -Werror"
821 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
822 [grub_cv_target_cc_soft_float="$cand"], [])
826 if test x"$grub_cv_target_cc_soft_float" = xno ; then
827 AC_MSG_ERROR([could not force soft-float])
830 case x"$grub_cv_target_cc_soft_float" in
832 # A trick so that clang doesn't see it on link stаge
833 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_soft_float"
836 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_soft_float"
839 TARGET_CCASFLAGS="$TARGET_CCASFLAGS $grub_cv_target_cc_soft_float"
843 if test x"$target_cpu" = xsparc64 ; then
844 AC_CACHE_CHECK([for options to reserve application registers], grub_cv_target_cc_mno_app_regs, [
845 grub_cv_target_cc_mno_app_regs=no
846 for cand in "-mllvm -sparc-reserve-app-registers" \
848 if test x"$grub_cv_target_cc_mno_app_regs" != xno ; then
851 CFLAGS="$TARGET_CFLAGS $cand -Werror"
852 CPPFLAGS="$TARGET_CPPFLAGS"
853 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
854 [grub_cv_target_cc_mno_app_regs="$cand"], [])
858 if test x"$grub_cv_target_cc_mno_app_regs" = xno ; then
859 AC_MSG_ERROR([could not reserve application registers])
861 if test x"$grub_cv_target_cc_mno_app_regs" = x"-mllvm -sparc-reserve-app-registers" ; then
862 # A trick so that clang doesn't see it on link stаge
863 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_mno_app_regs"
865 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_mno_app_regs"
868 AC_CACHE_CHECK([for no-relax options], grub_cv_target_cc_mno_relax, [
869 grub_cv_target_cc_mno_relax=no
870 for cand in "-mno-relax" "-Wl,--no-relax"; do
871 if test x"$grub_cv_target_cc_mno_relax" != xno ; then
874 LDFLAGS="$TARGET_LDFLAGS $cand -nostdlib -static"
875 CFLAGS="$TARGET_CFLAGS -Werror"
876 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
877 asm (".globl start; start:");
879 void __main (void) {}
881 ]], [[]])], [grub_cv_target_cc_mno_relax="$cand"], [])
884 LDFLAGS="$TARGET_LDFLAGS"
885 CFLAGS="$TARGET_CFLAGS"
887 if test x"$grub_cv_target_cc_mno_relax" = xno ; then
888 AC_MSG_ERROR([could not find no-relax options])
890 TARGET_LDFLAGS="$TARGET_LDFLAGS $grub_cv_target_cc_mno_relax"
893 # By default, GCC 4.4 generates .eh_frame sections containing unwind
894 # information in some cases where it previously did not. GRUB doesn't need
895 # these and they just use up vital space. Restore the old compiler
897 AC_CACHE_CHECK([whether -fno-dwarf2-cfi-asm works], [grub_cv_cc_fno_dwarf2_cfi_asm], [
898 CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
899 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
900 [grub_cv_cc_fno_dwarf2_cfi_asm=yes],
901 [grub_cv_cc_fno_dwarf2_cfi_asm=no])
904 if test "x$grub_cv_cc_fno_dwarf2_cfi_asm" = xyes; then
905 TARGET_CFLAGS="$TARGET_CFLAGS -fno-dwarf2-cfi-asm"
908 if test x"$target_os" = xcygwin; then
909 AC_CACHE_CHECK([whether option -fno-reorder-functions works], grub_cv_cc_no_reorder_functions, [
910 CFLAGS="$TARGET_CFLAGS -fno-reorder-functions"
911 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
912 [grub_cv_cc_no_reorder_functions=yes],
913 [grub_cv_cc_no_reorder_functions=no])
917 if test x"$target_os" = xcygwin && test "x$grub_cv_cc_no_reorder_functions" = xyes; then
918 TARGET_CFLAGS="$TARGET_CFLAGS -fno-reorder-functions"
921 AC_CACHE_CHECK([whether -mno-stack-arg-probe works], [grub_cv_cc_mno_stack_arg_probe], [
922 CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
923 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
924 [grub_cv_cc_mno_stack_arg_probe=yes],
925 [grub_cv_cc_mno_stack_arg_probe=no])
928 if test "x$grub_cv_cc_mno_stack_arg_probe" = xyes; then
929 TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
933 # By default, GCC 4.6 generates .eh_frame sections containing unwind
934 # information in some cases where it previously did not. GRUB doesn't need
935 # these and they just use up vital space. Restore the old compiler
937 AC_CACHE_CHECK([whether -fno-asynchronous-unwind-tables works], [grub_cv_cc_fno_asynchronous_unwind_tables], [
938 CFLAGS="$TARGET_CFLAGS -fno-asynchronous-unwind-tables"
939 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
940 [grub_cv_cc_fno_asynchronous_unwind_tables=yes],
941 [grub_cv_cc_fno_asynchronous_unwind_tables=no])
944 if test "x$grub_cv_cc_fno_asynchronous_unwind_tables" = xyes; then
945 TARGET_CFLAGS="$TARGET_CFLAGS -fno-asynchronous-unwind-tables"
948 AC_CACHE_CHECK([whether -fno-unwind-tables works], [grub_cv_cc_fno_unwind_tables], [
949 CFLAGS="$TARGET_CFLAGS -fno-unwind-tables"
950 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
951 [grub_cv_cc_fno_unwind_tables=yes],
952 [grub_cv_cc_fno_unwind_tables=no])
955 if test "x$grub_cv_cc_fno_unwind_tables" = xyes; then
956 TARGET_CFLAGS="$TARGET_CFLAGS -fno-unwind-tables"
960 CFLAGS="$TARGET_CFLAGS"
963 if test x"$platform" = xemu ; then
965 grub_cv_target_cc_link_format=
968 grub_cv_target_cc_link_format="-arch,${target_cpu}"
969 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
971 *windows* | *cygwin* | *mingw*)
972 if test x${target_cpu} = xi386 ; then
973 grub_cv_target_cc_link_format=-mi386pe
974 TARGET_OBJ2ELF='./build-grub-pe2elf$(BUILD_EXEEXT)'
976 if test x${target_cpu} = xx86_64 ; then
977 grub_cv_target_cc_link_format=-mi386pep
978 TARGET_OBJ2ELF='./build-grub-pep2elf$(BUILD_EXEEXT)'
980 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
983 elif test x"$target_cpu" = xi386 || test x"$target_cpu" = xx86_64; then
984 AC_CACHE_CHECK([for target linking format], [grub_cv_target_cc_link_format], [
985 grub_cv_target_cc_link_format=unknown
986 for format in -melf_${target_cpu} -melf_${target_cpu}_fbsd -melf_${target_cpu}_obsd -melf_${target_cpu}_haiku -mi386pe -mi386pep -arch,${target_cpu}; do
987 if test x${target_cpu} != xi386 && test x$format = x-mi386pe; then
990 if test x${target_cpu} != xx86_64 && test x$format = x-mi386pep; then
993 CFLAGS="$TARGET_CFLAGS"
994 LDFLAGS="$TARGET_LDFLAGS -Wl,$format -nostdlib -static"
995 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
996 asm (".globl start; start:");
997 asm (".globl _start; _start:");
998 asm (".globl __start; __start:");
1000 void __main (void) {}
1001 ]], [[]])], [flag=1], [flag=0])
1002 if test x"$flag" = x1; then
1003 grub_cv_target_cc_link_format="$format"
1007 if test x"$grub_cv_target_cc_link_format" = xunknown; then
1008 AC_MSG_ERROR([no suitable link format found])
1010 TARGET_LDFLAGS="$TARGET_LDFLAGS -Wl,$grub_cv_target_cc_link_format"
1011 if test x"$grub_cv_target_cc_link_format" = x-mi386pe ; then
1012 TARGET_OBJ2ELF='./build-grub-pe2elf$(BUILD_EXEEXT)'
1014 if test x"$grub_cv_target_cc_link_format" = x-mi386pep ; then
1015 TARGET_OBJ2ELF='./build-grub-pep2elf$(BUILD_EXEEXT)'
1019 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
1020 TARGET_APPLE_LINKER=1
1021 AC_CHECK_PROG([TARGET_OBJCONV], [objconv], [objconv], [])
1022 if test "x$TARGET_OBJCONV" = x ; then
1023 AC_CHECK_PROG([TARGET_OBJCONV], [objconv], [./objconv], [], [.])
1025 if test "x$TARGET_OBJCONV" = x ; then
1026 AC_MSG_ERROR([objconv not found which is required when building with apple compiler])
1028 TARGET_IMG_LDSCRIPT=
1029 TARGET_IMG_CFLAGS="-static"
1030 TARGET_IMG_LDFLAGS='-nostdlib -static -Wl,-preload -Wl,-segalign,20'
1031 TARGET_IMG_LDFLAGS_AC='-nostdlib -static -Wl,-preload -Wl,-segalign,20'
1032 TARGET_IMG_BASE_LDOPT="-Wl,-image_base"
1033 TARGET_LDFLAGS_OLDMAGIC=""
1034 elif test x$grub_cv_target_cc_link_format = x-mi386pe || test x$grub_cv_target_cc_link_format = x-mi386pep ; then
1035 TARGET_APPLE_LINKER=0
1036 TARGET_LDFLAGS_OLDMAGIC="-Wl,-N"
1037 TARGET_IMG_LDSCRIPT='$(top_srcdir)'"/${grub_coredir}/conf/i386-cygwin-img-ld.sc"
1038 TARGET_IMG_LDFLAGS="-Wl,-T${TARGET_IMG_LDSCRIPT}"
1039 TARGET_IMG_LDFLAGS_AC="-Wl,-T${srcdir}/${grub_coredir}/conf/i386-cygwin-img-ld.sc"
1040 TARGET_IMG_BASE_LDOPT="-Wl,-Ttext"
1043 TARGET_APPLE_LINKER=0
1044 TARGET_LDFLAGS_OLDMAGIC="-Wl,-N"
1045 TARGET_IMG_LDSCRIPT=
1046 TARGET_IMG_LDFLAGS='-Wl,-N'
1047 TARGET_IMG_LDFLAGS_AC='-Wl,-N'
1048 TARGET_IMG_BASE_LDOPT="-Wl,-Ttext"
1052 CFLAGS="$TARGET_CFLAGS"
1054 AC_ARG_ENABLE([efiemu],
1055 [AS_HELP_STRING([--enable-efiemu],
1056 [build and install the efiemu runtimes (default=guessed)])])
1057 if test x"$enable_efiemu" = xno ; then
1058 efiemu_excuse="explicitly disabled"
1061 if test x"$grub_cv_target_cc_link_format" = x-mi386pe || test x"$grub_cv_target_cc_link_format" = x-mi386pep ; then
1062 efiemu_excuse="not available on cygwin"
1064 if test x"$target_cpu" != xi386 ; then
1065 efiemu_excuse="only available on i386"
1067 if test x"$platform" = xefi ; then
1068 efiemu_excuse="not available on efi"
1071 if test x"$efiemu_excuse" = x ; then
1072 AC_CACHE_CHECK([whether options required for efiemu work], grub_cv_cc_efiemu, [
1073 CFLAGS="-m64 -nostdlib -O2 -mcmodel=large -mno-red-zone"
1074 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1075 [grub_cv_cc_efiemu=yes],
1076 [grub_cv_cc_efiemu=no])
1078 if test x$grub_cv_cc_efiemu = xno; then
1079 efiemu_excuse="cannot compile with -m64 -mcmodel=large -mno-red-zone -nostdlib"
1082 if test x"$efiemu_excuse" = x ; then
1083 AC_CACHE_CHECK([for efiemu64 linking format], [grub_cv_target_cc_efiemu64_link_format], [
1084 grub_cv_target_cc_efiemu64_link_format=unknown
1085 for format in -melf_x86_64 -melf_x86_64_fbsd -melf_x86_64_obsd -melf_x86_64_haiku -arch,x86_64; do
1086 CFLAGS="-m64 -nostdlib -O2 -mcmodel=large -mno-red-zone"
1087 LDFLAGS="-m64 -Wl,$format -nostdlib -static"
1088 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1089 asm (".globl start; start:");
1090 asm (".globl _start; _start:");
1091 asm (".globl __start; __start:");
1093 void __main (void) {}
1094 ]], [[]])], [flag=1], [flag=0])
1095 if test x"$flag" = x1; then
1096 grub_cv_target_cc_efiemu64_link_format="$format"
1100 if test x"$grub_cv_target_cc_efiemu64_link_format" = xunknown; then
1101 efiemu_excuse="no suitable link format for efiemu64 found"
1103 EFIEMU64_LINK_FORMAT="-Wl,$grub_cv_target_cc_efiemu64_link_format"
1106 if test x"$enable_efiemu" = xyes && test x"$efiemu_excuse" != x ; then
1107 AC_MSG_ERROR([efiemu runtime was explicitly requested but can't be compiled ($efiemu_excuse)])
1109 if test x"$efiemu_excuse" = x ; then
1114 AC_SUBST([enable_efiemu])
1115 AC_SUBST([EFIEMU64_LINK_FORMAT])
1117 CFLAGS="$TARGET_CFLAGS"
1119 AC_SUBST(TARGET_LDFLAGS_OLDMAGIC)
1122 LDFLAGS="$TARGET_LDFLAGS"
1124 if test "$target_cpu" = x86_64 || test "$target_cpu" = sparc64 ; then
1125 # Use large model to support 4G memory
1126 AC_CACHE_CHECK([whether option -mcmodel=large works], grub_cv_cc_mcmodel, [
1127 CFLAGS="$TARGET_CFLAGS -mcmodel=large"
1128 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1129 [grub_cv_cc_mcmodel=yes],
1130 [grub_cv_cc_mcmodel=no])
1132 if test "x$grub_cv_cc_mcmodel" = xyes; then
1133 TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=large"
1134 elif test "$target_cpu" = sparc64; then
1135 TARGET_CFLAGS="$TARGET_CFLAGS -mcmodel=medany"
1139 if test "$target_cpu"-"$platform" = x86_64-efi; then
1140 # EFI writes to stack below %rsp, we must not use the red zone
1141 AC_CACHE_CHECK([whether option -mno-red-zone works], grub_cv_cc_no_red_zone, [
1142 CFLAGS="$TARGET_CFLAGS -mno-red-zone"
1143 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1144 [grub_cv_cc_no_red_zone=yes],
1145 [grub_cv_cc_no_red_zone=no])
1147 if test "x$grub_cv_cc_no_red_zone" = xno; then
1148 AC_MSG_ERROR([-mno-red-zone not supported, upgrade your gcc])
1151 TARGET_CFLAGS="$TARGET_CFLAGS -mno-red-zone"
1154 if test "x$target_cpu" = xarm; then
1155 AC_CACHE_CHECK([for options to disable movt and movw], grub_cv_target_cc_mno_movt, [
1156 grub_cv_target_cc_mno_movt=no
1157 for cand in "-mno-movt" \
1158 "-mllvm -arm-use-movt=0"; do
1159 if test x"$grub_cv_target_cc_mno_movt" != xno ; then
1162 CFLAGS="$TARGET_CFLAGS $cand -Werror"
1163 CPPFLAGS="$TARGET_CPPFLAGS"
1164 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1165 [grub_cv_target_cc_mno_movt="$cand"], [])
1169 if test x"$grub_cv_target_cc_mno_movt" != xno ; then
1170 # A trick so that clang doesn't see it on link stage
1171 TARGET_CPPFLAGS="$TARGET_CPPFLAGS $grub_cv_target_cc_mno_movt"
1173 AC_CACHE_CHECK([whether option -mthumb-interwork works], grub_cv_cc_mthumb_interwork, [
1174 CFLAGS="$TARGET_CFLAGS -mthumb-interwork -Werror"
1175 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1176 [grub_cv_cc_mthumb_interwork=yes],
1177 [grub_cv_cc_mthumb_interwork=no])
1179 if test "x$grub_cv_cc_mthumb_interwork" = xyes; then
1180 TARGET_CFLAGS="$TARGET_CFLAGS -mthumb-interwork"
1181 # Clang defaults to thumb interworking
1182 elif test "x$grub_cv_cc_target_clang" = xno ; then
1183 AC_MSG_ERROR([your compiler doesn't support -mthumb-interwork])
1187 AC_CACHE_CHECK([whether option -Qn works], grub_cv_target_cc_qn, [
1188 CFLAGS="$TARGET_CFLAGS -Qn -Werror"
1189 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1190 [grub_cv_target_cc_qn=yes],
1191 [grub_cv_target_cc_qn=no])])
1192 if test "x$grub_cv_target_cc_qn" = xyes; then
1193 TARGET_CFLAGS="$TARGET_CFLAGS -Qn"
1197 # Compiler features.
1200 CFLAGS="$TARGET_CFLAGS"
1202 # Position independent executable.
1205 grub_CHECK_NO_PIE_ONEWORD
1207 [# Need that, because some distributions ship compilers that include
1208 # `-fPIE' or '-fpie' and '-pie' in the default specs.
1209 if [ x"$pie_possible" = xyes ]; then
1210 TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIE -fno-pie"
1213 if [ x"$link_nopie_needed" = xyes ] || [ x"$pie_possible" = xyes ]; then
1214 if [ x"$nopie_possible" = xyes ]; then
1215 TARGET_LDFLAGS="$TARGET_LDFLAGS -no-pie"
1217 if [ x"$nopie_oneword_possible" = xyes ]; then
1218 TARGET_LDFLAGS="$TARGET_LDFLAGS -nopie"
1222 CFLAGS="$TARGET_CFLAGS"
1223 LDFLAGS="$TARGET_LDFLAGS"
1225 # Position independent executable.
1227 [# On most platforms we don't want PIC as it only makes relocations harder
1228 # and code less efficient. On mips we want to have one got table per module
1229 # and reload $gp in every function.
1230 # GCC implements it using symbol __gnu_local_gp in non-PIC as well.
1231 # However with clang we need PIC for this reloading to happen.
1232 # With arm64 we need relocations that are in some way representable in
1233 # PE as we need to support arm64-efi. Without -fPIC clang generates
1234 # movk's which aren't representable.
1235 # Since default varies across dictributions use either -fPIC or -fno-PIC
1237 if ( test x$target_cpu = xmips || test x$target_cpu = xmipsel || test x$target_cpu = xarm64 ) && test "x$grub_cv_cc_target_clang" = xyes ; then
1238 TARGET_CFLAGS="$TARGET_CFLAGS -fPIC"
1239 elif [ x"$pic_possible" = xyes ]; then
1240 TARGET_CFLAGS="$TARGET_CFLAGS -fno-PIC"
1243 CFLAGS="$TARGET_CFLAGS"
1245 # Smashing stack protector.
1246 grub_CHECK_STACK_PROTECTOR
1247 # Need that, because some distributions ship compilers that include
1248 # `-fstack-protector' in the default specs.
1249 if test "x$ssp_possible" = xyes; then
1250 TARGET_CFLAGS="$TARGET_CFLAGS -fno-stack-protector"
1253 CFLAGS="$TARGET_CFLAGS"
1255 grub_CHECK_STACK_ARG_PROBE
1256 # Cygwin's GCC uses alloca() to probe the stackframe on static
1257 # stack allocations above some threshold.
1258 if test x"$sap_possible" = xyes; then
1259 TARGET_CFLAGS="$TARGET_CFLAGS -mno-stack-arg-probe"
1262 CFLAGS="$TARGET_CFLAGS"
1264 # -mno-unaligned-access -mstrict-align
1265 if test "$target_cpu" = arm; then
1266 AC_CACHE_CHECK([for compile options to get strict alignment], [grub_cv_target_cc_strict_align], [
1267 grub_cv_target_cc_strict_align=
1268 for arg in -mno-unaligned-access "-Xclang -mstrict-align" -mstrict-align; do
1269 CFLAGS="$TARGET_CFLAGS $arg -Werror"
1270 LDFLAGS="$TARGET_LDFLAGS"
1271 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [flag=1], [flag=0])
1272 if test x"$flag" = x1; then
1273 grub_cv_target_cc_strict_align="$arg"
1278 TARGET_CFLAGS="$TARGET_CFLAGS $grub_cv_target_cc_strict_align"
1279 if test x"$grub_cv_target_cc_strict_align" = x"-Xclang -mstrict-align"; then
1280 TARGET_LDFLAGS="$TARGET_LDFLAGS -Qunused-arguments"
1282 AC_CACHE_CHECK([if compiler generates unaligned accesses], [grub_cv_cc_target_emits_unaligned],
1283 [CFLAGS="$TARGET_CFLAGS"
1284 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
1285 #ifdef __ARM_FEATURE_UNALIGNED
1289 [grub_cv_cc_target_emits_unaligned=no], [grub_cv_cc_target_emits_unaligned=yes])])
1290 if test x$grub_cv_cc_target_emits_unaligned = xyes; then
1291 AC_MSG_ERROR([compiler generates unaligned accesses])
1295 # Set them to their new values for the tests below.
1297 if test x"$platform" = xemu ; then
1298 CFLAGS="$TARGET_CFLAGS -Wno-error"
1299 elif test "x$TARGET_APPLE_LINKER" = x1 ; then
1300 CFLAGS="$TARGET_CFLAGS -nostdlib -static -Wno-error"
1302 CFLAGS="$TARGET_CFLAGS -nostdlib -Wno-error"
1304 CPPFLAGS="$TARGET_CPPFLAGS"
1307 if test "x$TARGET_APPLE_LINKER" = x0 && test x"$platform" != xemu; then
1308 if test x$grub_cv_asm_uscore = xyes; then
1309 DEFSYM="-Wl,--defsym,_abort=_main -Wl,--defsym,__main=_main"
1311 DEFSYM="-Wl,--defsym,abort=main -Wl,--defsym,_main=main -Wl,--defsym,__main=main"
1313 CFLAGS="$TARGET_CFLAGS -nostdlib $DEFSYM"
1316 # Check for libgcc symbols
1317 if test x"$platform" = xemu; then
1318 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)
1321 if test "x$TARGET_APPLE_LINKER" = x1 ; then
1322 CFLAGS="$TARGET_CFLAGS -nostdlib -static"
1324 CFLAGS="$TARGET_CFLAGS -nostdlib"
1328 # Defined in aclocal.m4.
1330 if test "x$TARGET_APPLE_LINKER" != x1 ; then
1331 grub_PROG_OBJCOPY_ABSOLUTE
1333 grub_PROG_LD_BUILD_ID_NONE
1334 if test "x$target_cpu" = xi386; then
1335 if test "$platform" != emu && test "x$TARGET_APPLE_LINKER" != x1 ; then
1336 if test ! -z "$TARGET_IMG_LDSCRIPT"; then
1337 # Check symbols provided by linker script.
1338 CFLAGS="$TARGET_CFLAGS -nostdlib ${TARGET_IMG_LDFLAGS_AC} ${TARGET_IMG_BASE_LDOPT},0x8000"
1340 grub_CHECK_BSS_START_SYMBOL
1341 grub_CHECK_END_SYMBOL
1343 CFLAGS="$TARGET_CFLAGS"
1347 grub_PROG_NM_MINUS_P
1348 grub_PROG_NM_DEFINED_ONLY
1349 AC_SUBST(TARGET_NMFLAGS_MINUS_P)
1350 AC_SUBST(TARGET_NMFLAGS_DEFINED_ONLY)
1352 if test "$platform" != emu; then
1353 AC_CACHE_CHECK([whether -nostdinc -isystem works], [grub_cv_cc_isystem], [
1354 SAVED_CPPFLAGS="$CPPFLAGS"
1355 CPPFLAGS="$TARGET_CPPFLAGS -nostdinc -isystem `$TARGET_CC -print-file-name=include`"
1356 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
1358 int va_arg_func (int fixed, va_list args);]], [[]])],
1359 [grub_cv_cc_isystem=yes],
1360 [grub_cv_cc_isystem=no])
1361 CPPFLAGS="$SAVED_CPPFLAGS"
1364 if test x"$grub_cv_cc_isystem" = xyes ; then
1365 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -nostdinc -isystem `$TARGET_CC -print-file-name=include`"
1369 AC_CACHE_CHECK([whether -Wtrampolines work], [grub_cv_cc_wtrampolines], [
1370 CFLAGS="$TARGET_CFLAGS -Wtrampolines -Werror"
1371 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdarg.h>
1372 int va_arg_func (int fixed, va_list args);]], [[]])],
1373 [grub_cv_cc_wtrampolines=yes],
1374 [grub_cv_cc_wtrampolines=no])
1377 if test x"$grub_cv_cc_wtrampolines" = xyes ; then
1378 TARGET_CFLAGS="$TARGET_CFLAGS -Wtrampolines"
1381 # Restore the flags.
1383 CFLAGS="$tmp_CFLAGS"
1384 CPPFLAGS="$tmp_CPPFLAGS"
1385 LDFLAGS="$tmp_LDFLAGS"
1389 # Check for options.
1392 # Memory manager debugging.
1393 AC_ARG_ENABLE([mm-debug],
1394 AS_HELP_STRING([--enable-mm-debug],
1395 [include memory manager debugging]),
1396 [AC_DEFINE([MM_DEBUG], [1],
1397 [Define to 1 if you enable memory manager debugging.])])
1399 AC_ARG_ENABLE([cache-stats],
1400 AS_HELP_STRING([--enable-cache-stats],
1401 [enable disk cache statistics collection]))
1403 if test x$enable_cache_stats = xyes; then
1408 AC_SUBST([DISK_CACHE_STATS])
1410 AC_ARG_ENABLE([boot-time],
1411 AS_HELP_STRING([--enable-boot-time],
1412 [enable boot time statistics collection]))
1414 if test x$enable_boot_time = xyes; then
1419 AC_SUBST([BOOT_TIME_STATS])
1421 AC_ARG_ENABLE([grub-emu-sdl],
1422 [AS_HELP_STRING([--enable-grub-emu-sdl],
1423 [build and install the `grub-emu' debugging utility with SDL support (default=guessed)])])
1425 AC_ARG_ENABLE([grub-emu-pci],
1426 [AS_HELP_STRING([--enable-grub-emu-pci],
1427 [build and install the `grub-emu' debugging utility with PCI support (potentially dangerous) (default=no)])])
1429 if test "$platform" = emu; then
1431 if test x"$enable_grub_emu_sdl" = xno ; then
1432 grub_emu_sdl_excuse="explicitly disabled"
1434 [if [ x"$grub_emu_sdl_excuse" = x ]; then
1435 # Check for libSDL libraries.]
1436 AC_CHECK_LIB([SDL], [SDL_Init], [LIBSDL="-lSDL"],
1437 [grub_emu_sdl_excuse=["libSDL libraries are required to build \`grub-emu' with SDL support"]])
1441 [if [ x"$grub_emu_sdl_excuse" = x ]; then
1442 # Check for headers.]
1443 AC_CHECK_HEADERS([SDL/SDL.h], [],
1444 [grub_emu_sdl_excuse=["libSDL header file is required to build \`grub-emu' with SDL support"]])
1447 if test x"enable_grub_emu_sdl" = xyes && test x"$grub_emu_sdl_excuse" != x ; then
1448 AC_MSG_ERROR([SDL support for grub-emu was explicitly requested but can't be compiled ($grub_emu_sdl_excuse)])
1450 if test x"$grub_emu_sdl_excuse" = x ; then
1451 enable_grub_emu_sdl=yes
1453 enable_grub_emu_sdl=no
1456 if test x"$enable_grub_emu_pci" != xyes ; then
1457 grub_emu_pci_excuse="not enabled"
1460 [if [ x"$grub_emu_pci_excuse" = x ]; then
1461 # Check for libpci libraries.]
1462 AC_CHECK_LIB([pciaccess], [pci_system_init], [LIBPCIACCESS="-lpciaccess"],
1463 [grub_emu_pci_excuse=["need libpciaccess library"]])
1464 AC_SUBST([LIBPCIACCESS])
1466 [if [ x"$grub_emu_pci_excuse" = x ]; then
1467 # Check for headers.]
1468 AC_CHECK_HEADERS([pciaccess.h], [],
1469 [grub_emu_pci_excuse=["need libpciaccess headers"]])
1472 if test x"$grub_emu_pci_excuse" = x ; then
1473 enable_grub_emu_pci=yes
1476 enable_grub_emu_pci=no
1479 AC_SUBST([enable_grub_emu_sdl])
1480 AC_SUBST([enable_grub_emu_pci])
1484 # Ignore --enable-emu-* if platform is not emu
1485 enable_grub_emu_sdl=no
1486 enable_grub_emu_pci=no
1489 AC_ARG_ENABLE([grub-mkfont],
1490 [AS_HELP_STRING([--enable-grub-mkfont],
1491 [build and install the `grub-mkfont' utility (default=guessed)])])
1492 if test x"$enable_grub_mkfont" = xno ; then
1493 grub_mkfont_excuse="explicitly disabled"
1496 if test x"$grub_mkfont_excuse" = x ; then
1497 # Check for freetype libraries.
1498 AC_CHECK_TOOLS([FREETYPE], [freetype-config])
1499 if test "x$FREETYPE" = x ; then
1500 grub_mkfont_excuse=["need freetype2 library"]
1504 unset ac_cv_header_ft2build_h
1506 if test x"$grub_mkfont_excuse" = x ; then
1507 # Check for freetype libraries.
1508 freetype_cflags=`$FREETYPE --cflags`
1509 freetype_libs=`$FREETYPE --libs`
1510 SAVED_CPPFLAGS="$CPPFLAGS"
1512 CPPFLAGS="$CPPFLAGS $freetype_cflags"
1513 LIBS="$LIBS $freetype_libs"
1514 AC_CHECK_HEADERS([ft2build.h], [],
1515 [grub_mkfont_excuse=["need freetype2 headers"]])
1516 AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [], [grub_mkfont_excuse=["freetype2 library unusable"]])
1517 CPPFLAGS="$SAVED_CPPFLAGS"
1521 if test x"$enable_grub_mkfont" = xyes && test x"$grub_mkfont_excuse" != x ; then
1522 AC_MSG_ERROR([grub-mkfont was explicitly requested but can't be compiled ($grub_mkfont_excuse)])
1524 if test x"$grub_mkfont_excuse" = x ; then
1525 enable_grub_mkfont=yes
1527 enable_grub_mkfont=no
1529 AC_SUBST([enable_grub_mkfont])
1530 AC_SUBST([freetype_cflags])
1531 AC_SUBST([freetype_libs])
1535 SAVED_CFLAGS="$CFLAGS"
1536 SAVED_CPPFLAGS="$CPPFLAGS"
1537 SAVED_LDFLAGS="$LDFLAGS"
1540 CFLAGS="$BUILD_CFLAGS"
1541 CPPFLAGS="$BUILD_CPPFLAGS"
1542 LDFLAGS="$BUILD_LDFAGS"
1544 unset ac_cv_c_bigendian
1545 unset ac_cv_header_ft2build_h
1547 AC_COMPUTE_INT([BUILD_SIZEOF_VOID_P], [sizeof (void *)])
1548 AC_COMPUTE_INT([BUILD_SIZEOF_LONG], [sizeof (long)])
1549 AC_C_BIGENDIAN([BUILD_WORDS_BIGENDIAN=1], [BUILD_WORDS_BIGENDIAN=0], [BUILD_WORDS_BIGENDIAN=err], [BUILD_WORDS_BIGENDIAN=err])
1551 if test x$BUILD_WORDS_BIGENDIAN = xerr ; then
1552 AC_MSG_ERROR([couldnt determine build endianness])
1555 AC_SUBST([BUILD_SIZEOF_LONG])
1556 AC_SUBST([BUILD_SIZEOF_VOID_P])
1557 AC_SUBST([BUILD_WORDS_BIGENDIAN])
1559 if test x"$grub_build_mkfont_excuse" = x ; then
1560 # Check for freetype libraries.
1561 AC_CHECK_PROGS([BUILD_FREETYPE], [freetype-config])
1562 if test "x$BUILD_FREETYPE" = x ; then
1563 grub_build_mkfont_excuse=["need freetype2 library"]
1567 if test x"$grub_build_mkfont_excuse" = x ; then
1568 # Check for freetype libraries.
1569 build_freetype_cflags=`$BUILD_FREETYPE --cflags`
1570 build_freetype_libs=`$BUILD_FREETYPE --libs`
1571 SAVED_CPPFLAGS_2="$CPPFLAGS"
1573 CPPFLAGS="$CPPFLAGS $build_freetype_cflags"
1574 LIBS="$LIBS $build_freetype_libs"
1575 AC_CHECK_HEADERS([ft2build.h], [],
1576 [grub_build_mkfont_excuse=["need freetype2 headers"]])
1577 AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [], [grub_build_mkfont_excuse=["freetype2 library unusable"]])
1579 CPPFLAGS="$SAVED_CPPFLAGS_2"
1582 if test x"$enable_build_grub_mkfont" = xyes && test x"$grub_build_mkfont_excuse" != x ; then
1583 AC_MSG_ERROR([build-grub-mkfont was explicitly requested but can't be compiled ($grub_build_mkfont_excuse)])
1585 if test x"$grub_build_mkfont_excuse" = x ; then
1586 enable_build_grub_mkfont=yes
1588 enable_build_grub_mkfont=no
1590 if test x"$enable_build_grub_mkfont" = xno && ( test "x$platform" = xqemu || test "x$platform" = xloongson || test "x$platform" = xqemu_mips || test "x$platform" = xcoreboot ); then
1591 if test x"$grub_build_mkfont_excuse" = x ; then
1592 AC_MSG_ERROR([qemu, coreboot and loongson ports need build-time grub-mkfont])
1594 AC_MSG_ERROR([qemu, coreboot and loongson ports need build-time grub-mkfont ($grub_build_mkfont_excuse)])
1598 AC_SUBST([build_freetype_cflags])
1599 AC_SUBST([build_freetype_libs])
1603 CFLAGS="$SAVED_CFLAGS"
1604 CPPFLAGS="$SAVED_CPPFLAGS"
1605 LDFLAGS="$SAVED_LDFLAGS"
1612 AC_ARG_ENABLE([grub-themes],
1613 [AS_HELP_STRING([--enable-grub-themes],
1614 [build and install GRUB themes (default=guessed)])])
1615 if test x"$enable_grub_themes" = xno ; then
1616 starfield_excuse="explicitly disabled"
1619 if test x"$starfield_excuse" = x && test x"$enable_build_grub_mkfont" = xno ; then
1620 starfield_excuse="No build-time grub-mkfont"
1623 if test x"$starfield_excuse" = x; then
1624 for ext in pcf pcf.gz bdf bdf.gz ttf ttf.gz; do
1625 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
1626 if test -f "$dir/DejaVuSans.$ext"; then
1627 DJVU_FONT_SOURCE="$dir/DejaVuSans.$ext"
1633 if test "x$DJVU_FONT_SOURCE" = x; then
1634 starfield_excuse="No DejaVu found"
1638 if test x"$enable_grub_themes" = xyes && test x"$starfield_excuse" != x; then
1639 AC_MSG_ERROR([themes were explicitly requested but requirements are not satisfied ($starfield_excuse)])
1642 AC_SUBST([DJVU_FONT_SOURCE])
1646 for ext in pcf pcf.gz bdf bdf.gz ttf ttf.gz; do
1647 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
1648 if test -f "$dir/unifont.$ext"; then
1649 md5="$(md5sum "$dir/unifont.$ext"|awk '{ print $1; }')"
1650 # PCF and BDF from version 6.3 isn't hanled properly by libfreetype.
1651 if test "$md5" = 0a54834d2788c83886a3e1785a6a1e61 || test "$md5" = 28f2565c7a41d8d407e2551159385edb || test "$md5" = dae5e588461b3b92b87b6ffee734f936 || test "$md5" = 4a3d687aa5bb329ed05f4263a1016791 ; then
1654 FONT_SOURCE="$dir/unifont.$ext"
1660 if test x"$enable_build_grub_mkfont" = xno ; then
1664 if test "x$FONT_SOURCE" = x && ( test "x$platform" = xqemu || test "x$platform" = xloongson || test "x$platform" = xqemu_mips || test "x$platform" = xcoreboot ); then
1665 if test x"$grub_build_mkfont_excuse" = x ; then
1666 AC_MSG_ERROR([qemu, coreboot and loongson ports need unifont])
1668 AC_MSG_ERROR([qemu, coreboot and loongson ports need unifont ($grub_build_mkfont_excuse)])
1672 AC_SUBST([FONT_SOURCE])
1674 if test x"$FONT_SOURCE" = x && test x"$DJVU_FONT_SOURCE" = x && test x"$grub_build_mkfont_excuse" = x; then
1675 grub_build_mkfont_excuse="no fonts"
1679 AC_ARG_ENABLE([grub-mount],
1680 [AS_HELP_STRING([--enable-grub-mount],
1681 [build and install the `grub-mount' utility (default=guessed)])])
1682 if test x"$enable_grub_mount" = xno ; then
1683 grub_mount_excuse="explicitly disabled"
1686 if test x"$grub_mount_excuse" = x ; then
1687 AC_CHECK_LIB([fuse], [fuse_main_real], [],
1688 [grub_mount_excuse="need FUSE library"])
1691 if test x"$grub_mount_excuse" = x ; then
1692 # Check for fuse headers.
1693 SAVED_CPPFLAGS="$CPPFLAGS"
1694 CPPFLAGS="$CPPFLAGS -DFUSE_USE_VERSION=26"
1695 AC_CHECK_HEADERS([fuse/fuse.h], [],
1696 [grub_mount_excuse=["need FUSE headers"]])
1697 CPPFLAGS="$SAVED_CPPFLAGS"
1700 if test x"$enable_grub_mount" = xyes && test x"$grub_mount_excuse" != x ; then
1701 AC_MSG_ERROR([grub-mount was explicitly requested but can't be compiled ($grub_mount_excuse)])
1703 if test x"$grub_mount_excuse" = x ; then
1704 enable_grub_mount=yes
1706 enable_grub_mount=no
1708 AC_SUBST([enable_grub_mount])
1710 AC_ARG_ENABLE([device-mapper],
1711 [AS_HELP_STRING([--enable-device-mapper],
1712 [enable Linux device-mapper support (default=guessed)])])
1713 if test x"$enable_device_mapper" = xno ; then
1714 device_mapper_excuse="explicitly disabled"
1717 if test x"$device_mapper_excuse" = x ; then
1718 # Check for device-mapper header.
1719 AC_CHECK_HEADER([libdevmapper.h], [],
1720 [device_mapper_excuse="need libdevmapper header"])
1723 if test x"$device_mapper_excuse" = x ; then
1724 # Check for device-mapper library.
1725 AC_CHECK_LIB([devmapper], [dm_task_create], [],
1726 [device_mapper_excuse="need devmapper library"])
1729 if test x"$device_mapper_excuse" = x ; then
1730 # Check for device-mapper library.
1731 AC_CHECK_LIB([devmapper], [dm_log_with_errno_init],
1733 [device_mapper_excuse="need devmapper library"])
1736 if test x"$device_mapper_excuse" = x ; then
1737 LIBDEVMAPPER="-ldevmapper"
1738 AC_DEFINE([HAVE_DEVICE_MAPPER], [1],
1739 [Define to 1 if you have the devmapper library.])
1742 AC_SUBST([LIBDEVMAPPER])
1745 if test x$host_kernel = xkfreebsd; then
1746 AC_CHECK_LIB([geom], [geom_gettree], [],
1747 [AC_MSG_ERROR([Your platform requires libgeom])])
1753 AC_ARG_ENABLE([liblzma],
1754 [AS_HELP_STRING([--enable-liblzma],
1755 [enable liblzma integration (default=guessed)])])
1756 if test x"$enable_liblzma" = xno ; then
1757 liblzma_excuse="explicitly disabled"
1760 if test x"$liblzma_excuse" = x ; then
1761 AC_CHECK_LIB([lzma], [lzma_code],
1762 [],[liblzma_excuse="need lzma library"])
1764 if test x"$liblzma_excuse" = x ; then
1765 AC_CHECK_HEADER([lzma.h], [], [liblzma_excuse="need lzma header"])
1768 if test x"$enable_liblzma" = xyes && test x"$liblzma_excuse" != x ; then
1769 AC_MSG_ERROR([liblzma support was explicitly requested but requirements are not satisfied ($liblzma_excuse)])
1773 if test x"$liblzma_excuse" = x ; then
1775 AC_DEFINE([USE_LIBLZMA], [1],
1776 [Define to 1 if you have the LZMA library.])
1781 AC_ARG_ENABLE([libzfs],
1782 [AS_HELP_STRING([--enable-libzfs],
1783 [enable libzfs integration (default=guessed)])])
1784 if test x"$enable_libzfs" = xno ; then
1785 libzfs_excuse="explicitly disabled"
1788 if test x"$libzfs_excuse" = x ; then
1789 # Only check for system headers if libzfs support has not been disabled.
1790 AC_CHECK_HEADERS(libzfs.h libnvpair.h)
1793 if test x"$libzfs_excuse" = x ; then
1794 AC_CHECK_LIB([zfs], [libzfs_init],
1796 [libzfs_excuse="need zfs library"])
1799 if test x"$libzfs_excuse" = x ; then
1800 AC_CHECK_LIB([nvpair], [nvlist_lookup_string],
1802 [libzfs_excuse="need nvpair library"])
1805 if test x"$enable_libzfs" = xyes && test x"$libzfs_excuse" != x ; then
1806 AC_MSG_ERROR([libzfs support was explicitly requested but requirements are not satisfied ($libzfs_excuse)])
1809 if test x"$libzfs_excuse" = x ; then
1810 # We need both libzfs and libnvpair for a successful build.
1812 AC_DEFINE([HAVE_LIBZFS], [1],
1813 [Define to 1 if you have the ZFS library.])
1814 LIBNVPAIR="-lnvpair"
1815 AC_DEFINE([HAVE_LIBNVPAIR], [1],
1816 [Define to 1 if you have the NVPAIR library.])
1820 AC_SUBST([LIBNVPAIR])
1824 AC_SUBST([FONT_SOURCE])
1825 AS_IF([test x$target_cpu = xi386 -a x$platform = xqemu],
1826 [AC_SUBST([GRUB_BOOT_MACHINE_LINK_ADDR], 0xffe00)])
1828 AC_SUBST(HAVE_ASM_USCORE)
1829 AC_SUBST(BSS_START_SYMBOL)
1830 AC_SUBST(END_SYMBOL)
1834 AC_ARG_ENABLE([werror],
1835 [AS_HELP_STRING([--disable-werror],
1836 [do not use -Werror when building GRUB])])
1837 if test x"$enable_werror" != xno ; then
1838 TARGET_CFLAGS="$TARGET_CFLAGS -Werror"
1839 HOST_CFLAGS="$HOST_CFLAGS -Werror"
1842 TARGET_CPP="$TARGET_CC -E"
1843 TARGET_CCAS=$TARGET_CC
1845 # Includes which include make-time substitutions. They must come last
1846 # as to avoid executing top_builddir in shell.
1847 HOST_CPPFLAGS="$HOST_CPPFLAGS -I\$(top_builddir)/include"
1848 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -I\$(top_srcdir)/include"
1849 TARGET_CPPFLAGS="$TARGET_CPPFLAGS -I\$(top_builddir)/include"
1851 GRUB_TARGET_CPU="${target_cpu}"
1852 GRUB_PLATFORM="${platform}"
1854 AC_SUBST(GRUB_TARGET_CPU)
1855 AC_SUBST(GRUB_PLATFORM)
1857 AC_SUBST(TARGET_OBJCONV)
1858 AC_SUBST(TARGET_CPP)
1859 AC_SUBST(TARGET_CCAS)
1860 AC_SUBST(TARGET_OBJ2ELF)
1861 AC_SUBST(TARGET_MODULE_FORMAT)
1862 AC_SUBST(TARGET_CC_VERSION)
1864 AC_SUBST(TARGET_CFLAGS)
1865 AC_SUBST(TARGET_LDFLAGS)
1866 AC_SUBST(TARGET_CPPFLAGS)
1867 AC_SUBST(TARGET_CCASFLAGS)
1869 AC_SUBST(TARGET_IMG_LDFLAGS)
1870 AC_SUBST(TARGET_IMG_CFLAGS)
1871 AC_SUBST(TARGET_IMG_BASE_LDOPT)
1872 AC_SUBST(TARGET_APPLE_LINKER)
1874 AC_SUBST(HOST_CFLAGS)
1875 AC_SUBST(HOST_LDFLAGS)
1876 AC_SUBST(HOST_CPPFLAGS)
1877 AC_SUBST(HOST_CCASFLAGS)
1879 AC_SUBST(BUILD_LIBM)
1882 # Automake conditionals
1885 AM_CONDITIONAL([COND_real_platform], [test x$platform != xnone])
1886 AM_CONDITIONAL([COND_emu], [test x$platform = xemu])
1887 AM_CONDITIONAL([COND_i386_pc], [test x$target_cpu = xi386 -a x$platform = xpc])
1888 AM_CONDITIONAL([COND_i386_efi], [test x$target_cpu = xi386 -a x$platform = xefi])
1889 AM_CONDITIONAL([COND_ia64_efi], [test x$target_cpu = xia64 -a x$platform = xefi])
1890 AM_CONDITIONAL([COND_i386_qemu], [test x$target_cpu = xi386 -a x$platform = xqemu])
1891 AM_CONDITIONAL([COND_i386_ieee1275], [test x$target_cpu = xi386 -a x$platform = xieee1275])
1892 AM_CONDITIONAL([COND_i386_coreboot], [test x$target_cpu = xi386 -a x$platform = xcoreboot])
1893 AM_CONDITIONAL([COND_i386_multiboot], [test x$target_cpu = xi386 -a x$platform = xmultiboot])
1894 AM_CONDITIONAL([COND_x86_64_efi], [test x$target_cpu = xx86_64 -a x$platform = xefi])
1895 AM_CONDITIONAL([COND_i386_xen], [test x$target_cpu = xi386 -a x$platform = xxen])
1896 AM_CONDITIONAL([COND_x86_64_xen], [test x$target_cpu = xx86_64 -a x$platform = xxen])
1897 AM_CONDITIONAL([COND_mips_loongson], [test x$target_cpu = xmipsel -a x$platform = xloongson])
1898 AM_CONDITIONAL([COND_mips_qemu_mips], [test "(" x$target_cpu = xmips -o x$target_cpu = xmipsel ")" -a x$platform = xqemu_mips])
1899 AM_CONDITIONAL([COND_mips_arc], [test "(" x$target_cpu = xmips -o x$target_cpu = xmipsel ")" -a x$platform = xarc])
1900 AM_CONDITIONAL([COND_sparc64_ieee1275], [test x$target_cpu = xsparc64 -a x$platform = xieee1275])
1901 AM_CONDITIONAL([COND_sparc64_emu], [test x$target_cpu = xsparc64 -a x$platform = xemu])
1902 AM_CONDITIONAL([COND_powerpc_ieee1275], [test x$target_cpu = xpowerpc -a x$platform = xieee1275])
1903 AM_CONDITIONAL([COND_mips], [test x$target_cpu = xmips -o x$target_cpu = xmipsel])
1904 AM_CONDITIONAL([COND_mipsel], [test x$target_cpu = xmipsel])
1905 AM_CONDITIONAL([COND_mipseb], [test x$target_cpu = xmips])
1906 AM_CONDITIONAL([COND_arm], [test x$target_cpu = xarm ])
1907 AM_CONDITIONAL([COND_arm_uboot], [test x$target_cpu = xarm -a x$platform = xuboot])
1908 AM_CONDITIONAL([COND_arm_efi], [test x$target_cpu = xarm -a x$platform = xefi])
1909 AM_CONDITIONAL([COND_arm64], [test x$target_cpu = xarm64 ])
1910 AM_CONDITIONAL([COND_arm64_efi], [test x$target_cpu = xarm64 -a x$platform = xefi])
1912 AM_CONDITIONAL([COND_HOST_HURD], [test x$host_kernel = xhurd])
1913 AM_CONDITIONAL([COND_HOST_LINUX], [test x$host_kernel = xlinux])
1914 AM_CONDITIONAL([COND_HOST_NETBSD], [test x$host_kernel = xnetbsd])
1915 AM_CONDITIONAL([COND_HOST_WINDOWS], [test x$host_kernel = xwindows])
1916 AM_CONDITIONAL([COND_HOST_KFREEBSD], [test x$host_kernel = xkfreebsd])
1917 AM_CONDITIONAL([COND_HOST_XNU], [test x$host_kernel = xxnu])
1918 AM_CONDITIONAL([COND_HOST_ILLUMOS], [test x$host_kernel = xillumos])
1920 AM_CONDITIONAL([COND_MAN_PAGES], [test x$cross_compiling = xno -a x$HELP2MAN != x])
1921 AM_CONDITIONAL([COND_GRUB_EMU_SDL], [test x$enable_grub_emu_sdl = xyes])
1922 AM_CONDITIONAL([COND_GRUB_EMU_PCI], [test x$enable_grub_emu_pci = xyes])
1923 AM_CONDITIONAL([COND_GRUB_MKFONT], [test x$enable_grub_mkfont = xyes])
1924 AM_CONDITIONAL([COND_GRUB_MOUNT], [test x$enable_grub_mount = xyes])
1925 AM_CONDITIONAL([COND_HAVE_FONT_SOURCE], [test x$FONT_SOURCE != x])
1926 if test x$FONT_SOURCE != x ; then
1931 AC_SUBST(HAVE_FONT_SOURCE)
1932 AM_CONDITIONAL([COND_APPLE_LINKER], [test x$TARGET_APPLE_LINKER = x1])
1933 AM_CONDITIONAL([COND_ENABLE_EFIEMU], [test x$enable_efiemu = xyes])
1934 AM_CONDITIONAL([COND_ENABLE_CACHE_STATS], [test x$DISK_CACHE_STATS = x1])
1935 AM_CONDITIONAL([COND_ENABLE_BOOT_TIME_STATS], [test x$BOOT_TIME_STATS = x1])
1937 AM_CONDITIONAL([COND_HAVE_CXX], [test x$HAVE_CXX = xyes])
1939 AM_CONDITIONAL([COND_HAVE_ASM_USCORE], [test x$HAVE_ASM_USCORE = x1])
1940 AM_CONDITIONAL([COND_STARFIELD], [test "x$starfield_excuse" = x])
1941 AM_CONDITIONAL([COND_HAVE_EXEC], [test "x$have_exec" = xy])
1943 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
1944 test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
1945 datarootdir="$(eval echo "$datarootdir")"
1946 grub_libdir="$(eval echo "$libdir")"
1947 grub_localedir="$(eval echo "$localedir")"
1948 grub_datadir="$(eval echo "$datadir")"
1949 grub_sysconfdir="$(eval echo "$sysconfdir")"
1950 AC_DEFINE_UNQUOTED(LOCALEDIR, "$grub_localedir", [Locale dir])
1951 AC_DEFINE_UNQUOTED(GRUB_LIBDIR, "$grub_libdir", [Library dir])
1952 AC_DEFINE_UNQUOTED(GRUB_DATADIR, "$grub_datadir", [Data dir])
1953 AC_DEFINE_UNQUOTED(GRUB_SYSCONFDIR, "$grub_sysconfdir", [Configuration dir])
1957 if test "$platform" != none; then
1958 cpudir="${target_cpu}"
1959 if test x${cpudir} = xmipsel; then
1963 if test x"$link_dir" = xyes ; then
1964 AC_CONFIG_LINKS([include/grub/cpu:include/grub/$cpudir])
1965 if test "$platform" != emu ; then
1966 AC_CONFIG_LINKS([include/grub/machine:include/grub/$cpudir/$platform])
1969 mkdir -p include/grub 2>/dev/null
1970 rm -rf include/grub/cpu
1971 cp -rp $srcdir/include/grub/$cpudir include/grub/cpu 2>/dev/null
1972 if test "$platform" != emu ; then
1973 rm -rf include/grub/machine
1974 cp -rp $srcdir/include/grub/$cpudir/$platform include/grub/machine 2>/dev/null
1978 # Just enough to stop the compiler failing with -I$(srcdir)/include.
1979 mkdir -p include 2>/dev/null
1980 rm -rf include/grub/cpu include/grub/machine
1983 AC_CONFIG_FILES([Makefile])
1984 AC_CONFIG_FILES([grub-core/Makefile])
1985 AC_CONFIG_FILES([grub-core/gnulib/Makefile])
1986 AC_CONFIG_FILES([po/Makefile.in])
1987 AC_CONFIG_FILES([docs/Makefile])
1988 AC_CONFIG_FILES([util/bash-completion.d/Makefile])
1989 AC_CONFIG_FILES([stamp-h], [echo timestamp > stamp-h])
1990 AC_CONFIG_FILES([config.h])
1994 echo "*******************************************************"
1995 echo GRUB2 will be compiled with following components:
1996 echo Platform: "$target_cpu"-"$platform"
1997 if [ x"$platform" = xemu ]; then
1998 if [ x"$grub_emu_sdl_excuse" = x ]; then
1999 echo SDL support for grub-emu: Yes
2001 echo SDL support for grub-emu: No "($grub_emu_sdl_excuse)"
2003 if [ x"$grub_emu_pci_excuse" = x ]; then
2004 echo PCI support for grub-emu: Yes
2006 echo PCI support for grub-emu: No "($grub_emu_pci_excuse)"
2009 if test x"$device_mapper_excuse" = x ; then
2010 echo With devmapper support: Yes
2012 echo With devmapper support: No "($device_mapper_excuse)"
2014 if [ x"$enable_mm_debug" = xyes ]; then
2015 echo With memory debugging: Yes
2017 echo With memory debugging: No
2019 if [ x"$enable_cache_stats" = xyes ]; then
2020 echo With disk cache statistics: Yes
2022 echo With disk cache statistics: No
2025 if [ x"$enable_boot_time" = xyes ]; then
2026 echo With boot time statistics: Yes
2028 echo With boot time statistics: No
2031 if [ x"$efiemu_excuse" = x ]; then
2032 echo efiemu runtime: Yes
2034 echo efiemu runtime: No "($efiemu_excuse)"
2036 if [ x"$grub_mkfont_excuse" = x ]; then
2037 echo grub-mkfont: Yes
2039 echo grub-mkfont: No "($grub_mkfont_excuse)"
2041 if [ x"$grub_mount_excuse" = x ]; then
2042 echo grub-mount: Yes
2044 echo grub-mount: No "($grub_mount_excuse)"
2046 if [ x"$starfield_excuse" = x ]; then
2047 echo starfield theme: Yes
2048 echo With DejaVuSans font from $DJVU_FONT_SOURCE
2050 echo starfield theme: No "($starfield_excuse)"
2052 if [ x"$libzfs_excuse" = x ]; then
2053 echo With libzfs support: Yes
2055 echo With libzfs support: No "($libzfs_excuse)"
2057 if [ x"$grub_build_mkfont_excuse" = x ]; then
2058 echo Build-time grub-mkfont: Yes
2059 if test "x$FONT_SOURCE" = x ; then
2060 echo "Without unifont"
2062 echo "With unifont from $FONT_SOURCE"
2065 echo Build-time grub-mkfont: No "($grub_build_mkfont_excuse)"
2066 echo "Without unifont (no build-time grub-mkfont)"
2068 if test x"$liblzma_excuse" != x ; then
2069 echo "Without liblzma (no support for XZ-compressed mips images) ($liblzma_excuse)"
2071 echo "With liblzma from $LIBLZMA (support for XZ-compressed mips images)"
2073 echo "*******************************************************"