lto-plugin/configure.ac

   1 AC_PREREQ(2.64)
   2 AC_INIT([LTO plugin for ld], 0.1,,[lto-plugin])
   3 AC_CANONICAL_SYSTEM
   4 GCC_TOPLEV_SUBDIRS
   5 AM_INIT_AUTOMAKE([foreign no-dist])
   6 AM_MAINTAINER_MODE
   7 AC_ARG_WITH(libiberty,
   8   [AS_HELP_STRING([--with-libiberty=PATH],
   9     [specify the directory where to find libiberty [../libiberty]])],
  10   [], with_libiberty=../libiberty)
  11 AC_SUBST(with_libiberty)
  12 AC_PROG_CC
  13 AC_SYS_LARGEFILE
  14 ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags])
  15
  16 # Check whether -static-libgcc is supported.
  17 saved_LDFLAGS="$LDFLAGS"
  18 LDFLAGS="$LDFLAGS -static-libgcc"
  19 AC_MSG_CHECKING([for -static-libgcc])
  20 AC_LINK_IFELSE([
  21   int main() {}], [have_static_libgcc=yes], [have_static_libgcc=no])
  22 AC_MSG_RESULT($have_static_libgcc);
  23 LDFLAGS="$saved_LDFLAGS"
  24 # Need -Wc to get it through libtool.
  25 if test "x$have_static_libgcc" = xyes; then
  26    ac_lto_plugin_ldflags="-Wc,-static-libgcc"
  27 fi
  28 AC_SUBST(ac_lto_plugin_ldflags)
  29
  30 if test x"$host_subdir" = x.; then
  31    gcc_build_dir=../gcc
  32 else
  33    gcc_build_dir=../../$host_subdir/gcc
  34 fi
  35 AC_SUBST(gcc_build_dir)
  36
  37 AM_PROG_LIBTOOL
  38 ACX_LT_HOST_FLAGS
  39 AC_SUBST(target_noncanonical)
  40 AC_TYPE_INT64_T
  41 AC_TYPE_UINT64_T
  42 AC_HEADER_SYS_WAIT
  43 AC_CONFIG_FILES(Makefile)
  44 AC_CONFIG_HEADERS(config.h)
  45 AC_OUTPUT