configure.ac

   1 dnl Process this file with autoconf to produce a configure script.
   2
   3 AC_INIT([foobar],[m4_esyscmd(./version-gen.sh)],
   4                 [Sebastian Harl <sh@tokkee.org>])
   5 AC_CONFIG_SRCDIR([src/foobar.c])
   6 AC_CONFIG_HEADERS([src/config.h])
   7 AC_PREFIX_DEFAULT([/opt/foobar])
   8
   9 AM_INIT_AUTOMAKE([foreign -Wall])
  10
  11 AC_LANG(C)
  12
  13 AC_SYS_LARGEFILE
  14
  15 AC_PROG_CC
  16 AC_PROG_CPP
  17 AC_PROG_INSTALL
  18 AC_PROG_LN_S
  19 AC_PROG_MAKE_SET
  20
  21 AM_PROG_CC_C_O
  22
  23 AC_PROG_LIBTOOL
  24
  25 test_cc_flags() {
  26         AC_LANG_CONFTEST([int main() {}])
  27         $CC -c conftest.c $CFLAGS $@ > /dev/null 2> /dev/null
  28         ret=$?
  29         rm -f conftest.o
  30         return $ret
  31 }
  32
  33 for flag in -Wall -Wextra -Werror; do
  34         AC_MSG_CHECKING([whether $CC accepts $flag])
  35
  36         if test_cc_flags $flag; then
  37                 STRICT_CFLAGS="$STRICT_CFLAGS $flag"
  38                 AC_MSG_RESULT([yes])
  39         else
  40                 AC_MSG_RESULT([no])
  41         fi
  42 done
  43 AC_SUBST([STRICT_CFLAGS])
  44
  45 build_date="`date --utc '+%F %T'` (UTC)"
  46 AC_DEFINE_UNQUOTED([BUILD_DATE], ["$build_date"],
  47                 [Define to the date the package has been built on.])
  48
  49 AC_CHECK_HEADERS(libgen.h)
  50
  51 AC_CONFIG_FILES([Makefile src/Makefile])
  52 AC_OUTPUT
  53
  54 cat <<EOF;
  55
  56 $PACKAGE_NAME has been configured successfully.
  57
  58 Run 'make' to compile the software and use 'make install' to
  59 install the package into $prefix.
  60
  61 Configuration summary:
  62
  63   package version: $PACKAGE_VERSION
  64   build date: $build_date
  65
  66 Please report bugs to $PACKAGE_BUGREPORT.
  67
  68 EOF
  69