1AC_PREREQ(2.64)
2AC_INIT([LTO plugin for ld], 0.1,,[lto-plugin])
3AC_CANONICAL_SYSTEM
4GCC_TOPLEV_SUBDIRS
5AM_INIT_AUTOMAKE([foreign no-dist])
6AM_MAINTAINER_MODE
7AC_ARG_WITH(libiberty,
8  [AS_HELP_STRING([--with-libiberty=PATH],
9    [specify the directory where to find libiberty [../libiberty]])],
10  [], with_libiberty=../libiberty)
11AC_SUBST(with_libiberty)
12AC_PROG_CC
13AC_SYS_LARGEFILE
14ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags])
15
16# Check whether -static-libgcc is supported.
17saved_LDFLAGS="$LDFLAGS"
18LDFLAGS="$LDFLAGS -static-libgcc"
19AC_MSG_CHECKING([for -static-libgcc])
20AC_LINK_IFELSE([
21  int main() {}], [have_static_libgcc=yes], [have_static_libgcc=no])
22AC_MSG_RESULT($have_static_libgcc); 
23LDFLAGS="$saved_LDFLAGS"
24# Need -Wc to get it through libtool.
25if test "x$have_static_libgcc" = xyes; then
26   ac_lto_plugin_ldflags="-Wc,-static-libgcc"
27fi
28AC_SUBST(ac_lto_plugin_ldflags)
29
30if test x"$host_subdir" = x.; then
31   gcc_build_dir=../gcc
32else
33   gcc_build_dir=../../$host_subdir/gcc
34fi
35AC_SUBST(gcc_build_dir)
36
37# Used for constructing correct paths for offload compilers.
38accel_dir_suffix=
39real_target_noncanonical=${target_noncanonical}
40if test x"$enable_as_accelerator_for" != x; then
41  accel_dir_suffix=/accel/${target_noncanonical}
42  real_target_noncanonical=${enable_as_accelerator_for}
43fi
44AC_SUBST(accel_dir_suffix)
45AC_SUBST(real_target_noncanonical)
46
47AM_PROG_LIBTOOL
48ACX_LT_HOST_FLAGS
49AC_SUBST(target_noncanonical)
50AC_TYPE_INT64_T
51AC_TYPE_UINT64_T
52AC_HEADER_SYS_WAIT
53AC_CONFIG_FILES(Makefile)
54AC_CONFIG_HEADERS(config.h)
55AC_OUTPUT
56