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_USE_SYSTEM_EXTENSIONS
  13 AC_PROG_CC
  14 AC_SYS_LARGEFILE
  15 ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags])
  16
  17 # Check whether -static-libgcc is supported.
  18 saved_LDFLAGS="$LDFLAGS"
  19 LDFLAGS="$LDFLAGS -static-libgcc"
  20 AC_MSG_CHECKING([for -static-libgcc])
  21 AC_LINK_IFELSE([
  22   int main() {}], [have_static_libgcc=yes], [have_static_libgcc=no])
  23 AC_MSG_RESULT($have_static_libgcc);
  24 LDFLAGS="$saved_LDFLAGS"
  25 # Need -Wc to get it through libtool.
  26 if test "x$have_static_libgcc" = xyes; then
  27    ac_lto_plugin_ldflags="-Wc,-static-libgcc"
  28 fi
  29 AC_SUBST(ac_lto_plugin_ldflags)
  30
  31 if test x"$host_subdir" = x.; then
  32    gcc_build_dir=../gcc
  33 else
  34    gcc_build_dir=../../$host_subdir/gcc
  35 fi
  36 AC_SUBST(gcc_build_dir)
  37
  38 # Used for constructing correct paths for offload compilers.
  39 accel_dir_suffix=
  40 real_target_noncanonical=${target_noncanonical}
  41 if test x"$enable_as_accelerator_for" != x; then
  42   accel_dir_suffix=/accel/${target_noncanonical}
  43   real_target_noncanonical=${enable_as_accelerator_for}
  44 fi
  45 AC_SUBST(accel_dir_suffix)
  46 AC_SUBST(real_target_noncanonical)
  47
  48 # Determine what GCC version number to use in filesystem paths.
  49 GCC_BASE_VER
  50
  51 AM_PROG_LIBTOOL
  52 ACX_LT_HOST_FLAGS
  53 AC_SUBST(target_noncanonical)
  54 AC_TYPE_INT64_T
  55 AC_TYPE_UINT64_T
  56 AC_HEADER_SYS_WAIT
  57 AC_CONFIG_FILES(Makefile)
  58 AC_CONFIG_HEADERS(config.h)
  59 AC_OUTPUT