|  | AC_INIT([LTO plugin for ld], 0.1,,[lto-plugin]) | 
|  | AC_CANONICAL_SYSTEM | 
|  | GCC_TOPLEV_SUBDIRS | 
|  | AM_INIT_AUTOMAKE([foreign no-dist]) | 
|  | AM_MAINTAINER_MODE | 
|  | AC_ARG_WITH(libiberty, | 
|  | [AS_HELP_STRING([--with-libiberty=PATH], | 
|  | [specify the directory where to find libiberty [../libiberty]])], | 
|  | [], with_libiberty=../libiberty) | 
|  | AC_SUBST(with_libiberty) | 
|  | AC_USE_SYSTEM_EXTENSIONS | 
|  | AC_PROG_CC | 
|  | AC_SYS_LARGEFILE | 
|  | ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags]) | 
|  |  | 
|  | # Check whether -static-libgcc is supported. | 
|  | saved_LDFLAGS="$LDFLAGS" | 
|  | LDFLAGS="$LDFLAGS -static-libgcc" | 
|  | AC_MSG_CHECKING([for -static-libgcc]) | 
|  | AC_LINK_IFELSE([AC_LANG_SOURCE([ | 
|  | int main() {}])], [have_static_libgcc=yes], [have_static_libgcc=no]) | 
|  | AC_MSG_RESULT($have_static_libgcc); | 
|  | LDFLAGS="$saved_LDFLAGS" | 
|  | # Need -Wc to get it through libtool. | 
|  | if test "x$have_static_libgcc" = xyes; then | 
|  | ac_lto_plugin_ldflags="-Wc,-static-libgcc" | 
|  | fi | 
|  | AC_SUBST(ac_lto_plugin_ldflags) | 
|  |  | 
|  | GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) | 
|  | AC_SUBST(CET_HOST_FLAGS) | 
|  |  | 
|  | if test x"$host_subdir" = x.; then | 
|  | gcc_build_dir=../gcc | 
|  | else | 
|  | gcc_build_dir=../../$host_subdir/gcc | 
|  | fi | 
|  | AC_SUBST(gcc_build_dir) | 
|  |  | 
|  | # Used for constructing correct paths for offload compilers. | 
|  | accel_dir_suffix= | 
|  | real_target_noncanonical=${target_noncanonical} | 
|  | if test x"$enable_as_accelerator_for" != x; then | 
|  | accel_dir_suffix=/accel/${target_noncanonical} | 
|  | real_target_noncanonical=${enable_as_accelerator_for} | 
|  | fi | 
|  | AC_SUBST(accel_dir_suffix) | 
|  | AC_SUBST(real_target_noncanonical) | 
|  |  | 
|  | # Determine what GCC version number to use in filesystem paths. | 
|  | GCC_BASE_VER | 
|  |  | 
|  | AM_PROG_LIBTOOL | 
|  | ACX_LT_HOST_FLAGS | 
|  | AC_SUBST(target_noncanonical) | 
|  | AC_TYPE_INT64_T | 
|  | AC_TYPE_UINT64_T | 
|  | AC_HEADER_SYS_WAIT | 
|  | AC_CONFIG_FILES(Makefile) | 
|  | AC_CONFIG_HEADERS(config.h) | 
|  | AC_OUTPUT |