ceph/src/liburing/configure

   1 #!/bin/sh
   2 #
   3 # set temporary file name
   4 if test ! -z "$TMPDIR" ; then
   5     TMPDIR1="${TMPDIR}"
   6 elif test ! -z "$TEMPDIR" ; then
   7     TMPDIR1="${TEMPDIR}"
   8 else
   9     TMPDIR1="/tmp"
  10 fi
  11
  12 cc=${CC:-gcc}
  13 cxx=${CXX:-g++}
  14
  15 for opt do
  16   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
  17   case "$opt" in
  18   --help|-h) show_help=yes
  19   ;;
  20   --prefix=*) prefix="$optarg"
  21   ;;
  22   --includedir=*) includedir="$optarg"
  23   ;;
  24   --libdir=*) libdir="$optarg"
  25   ;;
  26   --libdevdir=*) libdevdir="$optarg"
  27   ;;
  28   --mandir=*) mandir="$optarg"
  29   ;;
  30   --datadir=*) datadir="$optarg"
  31   ;;
  32   --cc=*) cc="$optarg"
  33   ;;
  34   --cxx=*) cxx="$optarg"
  35   ;;
  36   *)
  37     echo "ERROR: unknown option $opt"
  38     echo "Try '$0 --help' for more information"
  39     exit 1
  40   ;;
  41   esac
  42 done
  43
  44 if test -z "$prefix"; then
  45   prefix=/usr
  46 fi
  47 if test -z "$includedir"; then
  48   includedir="$prefix/include"
  49 fi
  50 if test -z "$libdir"; then
  51   libdir="$prefix/lib"
  52 fi
  53 if test -z "$libdevdir"; then
  54   libdevdir="$prefix/lib"
  55 fi
  56 if test -z "$mandir"; then
  57   mandir="$prefix/man"
  58 fi
  59 if test -z "$datadir"; then
  60   datadir="$prefix/share"
  61 fi
  62
  63 if test x"$libdir" = x"$libdevdir"; then
  64   relativelibdir=""
  65 else
  66   relativelibdir="$libdir/"
  67 fi
  68
  69 if test "$show_help" = "yes"; then
  70 cat <<EOF
  71
  72 Usage: configure [options]
  73 Options: [defaults in brackets after descriptions]
  74   --help                   print this message
  75   --prefix=PATH            install in PATH [$prefix]
  76   --includedir=PATH        install headers in PATH [$includedir]
  77   --libdir=PATH            install runtime libraries in PATH [$libdir]
  78   --libdevdir=PATH         install development libraries in PATH [$libdevdir]
  79   --mandir=PATH            install man pages in PATH [$mandir]
  80   --datadir=PATH           install shared data in PATH [$datadir]
  81 EOF
  82 exit 0
  83 fi
  84
  85 TMPC="${TMPDIR1}/fio-conf-${RANDOM}-$$-${RANDOM}.c"
  86 TMPC2="${TMPDIR1}/fio-conf-${RANDOM}-$$-${RANDOM}-2.c"
  87 TMPO="${TMPDIR1}/fio-conf-${RANDOM}-$$-${RANDOM}.o"
  88 TMPE="${TMPDIR1}/fio-conf-${RANDOM}-$$-${RANDOM}.exe"
  89
  90 # NB: do not call "exit" in the trap handler; this is buggy with some shells;
  91 # see <1285349658-3122-1-git-send-email-loic.minier@linaro.org>
  92 trap "rm -f $TMPC $TMPC2 $TMPO $TMPE" EXIT INT QUIT TERM
  93
  94 rm -rf config.log
  95
  96 config_host_mak="config-host.mak"
  97 config_host_h="config-host.h"
  98
  99 rm -rf $config_host_mak
 100 rm -rf $config_host_h
 101
 102 fatal() {
 103   echo $@
 104   echo "Configure failed, check config.log and/or the above output"
 105   rm -rf $config_host_mak
 106   rm -rf $config_host_h
 107   exit 1
 108 }
 109
 110 # Print result for each configuration test
 111 print_config() {
 112   printf "%-30s%s\n" "$1" "$2"
 113 }
 114
 115 # Default CFLAGS
 116 CFLAGS="-D_GNU_SOURCE -include config-host.h"
 117 BUILD_CFLAGS=""
 118
 119 # Print configure header at the top of $config_host_h
 120 echo "/*" > $config_host_h
 121 echo " * Automatically generated by configure - do not modify" >> $config_host_h
 122 printf " * Configured with:" >> $config_host_h
 123 printf " * '%s'" "$0" "$@" >> $config_host_h
 124 echo "" >> $config_host_h
 125 echo " */" >> $config_host_h
 126
 127 echo "# Automatically generated by configure - do not modify" > $config_host_mak
 128 printf "# Configured with:" >> $config_host_mak
 129 printf " '%s'" "$0" "$@" >> $config_host_mak
 130 echo >> $config_host_mak
 131
 132 do_cxx() {
 133     # Run the compiler, capturing its output to the log.
 134     echo $cxx "$@" >> config.log
 135     $cxx "$@" >> config.log 2>&1 || return $?
 136     return 0
 137 }
 138
 139 do_cc() {
 140     # Run the compiler, capturing its output to the log.
 141     echo $cc "$@" >> config.log
 142     $cc "$@" >> config.log 2>&1 || return $?
 143     # Test passed. If this is an --enable-werror build, rerun
 144     # the test with -Werror and bail out if it fails. This
 145     # makes warning-generating-errors in configure test code
 146     # obvious to developers.
 147     if test "$werror" != "yes"; then
 148         return 0
 149     fi
 150     # Don't bother rerunning the compile if we were already using -Werror
 151     case "$*" in
 152         *-Werror*)
 153            return 0
 154         ;;
 155     esac
 156     echo $cc -Werror "$@" >> config.log
 157     $cc -Werror "$@" >> config.log 2>&1 && return $?
 158     echo "ERROR: configure test passed without -Werror but failed with -Werror."
 159     echo "This is probably a bug in the configure script. The failing command"
 160     echo "will be at the bottom of config.log."
 161     fatal "You can run configure with --disable-werror to bypass this check."
 162 }
 163
 164 compile_prog() {
 165   local_cflags="$1"
 166   local_ldflags="$2 $LIBS"
 167   echo "Compiling test case $3" >> config.log
 168   do_cc $CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags
 169 }
 170
 171 compile_prog_cxx() {
 172   local_cflags="$1"
 173   local_ldflags="$2 $LIBS"
 174   echo "Compiling test case $3" >> config.log
 175   do_cxx $CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags
 176 }
 177
 178 has() {
 179   type "$1" >/dev/null 2>&1
 180 }
 181
 182 output_mak() {
 183   echo "$1=$2" >> $config_host_mak
 184 }
 185
 186 output_sym() {
 187   output_mak "$1" "y"
 188   echo "#define $1" >> $config_host_h
 189 }
 190
 191 print_and_output_mak() {
 192   print_config "$1" "$2"
 193   output_mak "$1" "$2"
 194 }
 195 print_and_output_mak "prefix" "$prefix"
 196 print_and_output_mak "includedir" "$includedir"
 197 print_and_output_mak "libdir" "$libdir"
 198 print_and_output_mak "libdevdir" "$libdevdir"
 199 print_and_output_mak "relativelibdir" "$relativelibdir"
 200 print_and_output_mak "mandir" "$mandir"
 201 print_and_output_mak "datadir" "$datadir"
 202
 203 ##########################################
 204 # check for __kernel_rwf_t
 205 __kernel_rwf_t="no"
 206 cat > $TMPC << EOF
 207 #include <linux/fs.h>
 208 int main(int argc, char **argv)
 209 {
 210   __kernel_rwf_t x;
 211   x = 0;
 212   return x;
 213 }
 214 EOF
 215 if compile_prog "" "" "__kernel_rwf_t"; then
 216   __kernel_rwf_t="yes"
 217 fi
 218 print_config "__kernel_rwf_t" "$__kernel_rwf_t"
 219
 220 ##########################################
 221 # check for __kernel_timespec
 222 __kernel_timespec="no"
 223 cat > $TMPC << EOF
 224 #include <linux/time.h>
 225 #include <linux/time_types.h>
 226 int main(int argc, char **argv)
 227 {
 228   struct __kernel_timespec ts;
 229   ts.tv_sec = 0;
 230   ts.tv_nsec = 1;
 231   return 0;
 232 }
 233 EOF
 234 if compile_prog "" "" "__kernel_timespec"; then
 235   __kernel_timespec="yes"
 236 fi
 237 print_config "__kernel_timespec" "$__kernel_timespec"
 238
 239 ##########################################
 240 # check for open_how
 241 open_how="no"
 242 cat > $TMPC << EOF
 243 #include <sys/types.h>
 244 #include <sys/stat.h>
 245 #include <fcntl.h>
 246 #include <string.h>
 247 int main(int argc, char **argv)
 248 {
 249   struct open_how how;
 250   how.flags = 0;
 251   how.mode = 0;
 252   how.resolve = 0;
 253   return 0;
 254 }
 255 EOF
 256 if compile_prog "" "" "open_how"; then
 257   open_how="yes"
 258 fi
 259 print_config "open_how" "$open_how"
 260
 261 ##########################################
 262 # check for statx
 263 statx="no"
 264 cat > $TMPC << EOF
 265 #include <sys/types.h>
 266 #include <sys/stat.h>
 267 #include <unistd.h>
 268 #include <fcntl.h>
 269 #include <string.h>
 270 #include <linux/stat.h>
 271 int main(int argc, char **argv)
 272 {
 273   struct statx x;
 274
 275   return memset(&x, 0, sizeof(x)) != NULL;
 276 }
 277 EOF
 278 if compile_prog "" "" "statx"; then
 279   statx="yes"
 280 fi
 281 print_config "statx" "$statx"
 282
 283 ##########################################
 284 # check for C++
 285 has_cxx="no"
 286 cat > $TMPC << EOF
 287 #include <iostream>
 288 int main(int argc, char **argv)
 289 {
 290   std::cout << "Test";
 291   return 0;
 292 }
 293 EOF
 294 if compile_prog_cxx "" "" "C++"; then
 295   has_cxx="yes"
 296 fi
 297 print_config "C++" "$has_cxx"
 298
 299 #############################################################################
 300
 301 if test "$__kernel_rwf_t" = "yes"; then
 302   output_sym "CONFIG_HAVE_KERNEL_RWF_T"
 303 fi
 304 if test "$__kernel_timespec" = "yes"; then
 305   output_sym "CONFIG_HAVE_KERNEL_TIMESPEC"
 306 fi
 307 if test "$open_how" = "yes"; then
 308   output_sym "CONFIG_HAVE_OPEN_HOW"
 309 fi
 310 if test "$statx" = "yes"; then
 311   output_sym "CONFIG_HAVE_STATX"
 312 fi
 313 if test "$has_cxx" = "yes"; then
 314   output_sym "CONFIG_HAVE_CXX"
 315 fi
 316
 317 echo "CC=$cc" >> $config_host_mak
 318 print_config "CC" "$cc"
 319 echo "CXX=$cxx" >> $config_host_mak
 320 print_config "CXX" "$cxx"
 321
 322 # generate compat.h
 323 compat_h="src/include/liburing/compat.h"
 324 cat > $compat_h << EOF
 325 /* SPDX-License-Identifier: MIT */
 326 #ifndef LIBURING_COMPAT_H
 327 #define LIBURING_COMPAT_H
 328
 329 EOF
 330
 331 if test "$__kernel_rwf_t" != "yes"; then
 332 cat >> $compat_h << EOF
 333 typedef int __kernel_rwf_t;
 334
 335 EOF
 336 fi
 337 if test "$__kernel_timespec" != "yes"; then
 338 cat >> $compat_h << EOF
 339 #include <stdint.h>
 340
 341 struct __kernel_timespec {
 342         int64_t         tv_sec;
 343         long long       tv_nsec;
 344 };
 345
 346 EOF
 347 else
 348 cat >> $compat_h << EOF
 349 #include <linux/time_types.h>
 350
 351 EOF
 352 fi
 353 if test "$open_how" != "yes"; then
 354 cat >> $compat_h << EOF
 355 #include <inttypes.h>
 356
 357 struct open_how {
 358         uint64_t        flags;
 359         uint64_t        mode;
 360         uint64_t        resolve;
 361 };
 362
 363 EOF
 364 fi
 365
 366 cat >> $compat_h << EOF
 367 #endif
 368 EOF