diff options
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index efa758c9464..23c914de443 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -3024,6 +3024,23 @@ EOF ;; esac +AC_CACHE_CHECK(linker --sysroot support, + gcc_cv_ld_sysroot, + [gcc_cv_ld_sysroot=no + if test $in_tree_ld = yes ; then + if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2 ; then + gcc_cv_ld_sysroot = yes + fi + elif test x$gcc_cv_ld != x; then + if $gcc_cv_ld --help 2>/dev/null | grep sysroot > /dev/null; then + gcc_cv_ld_sysroot=yes + fi + fi]) +if test x"$gcc_cv_ld_sysroot" = xyes; then + AC_DEFINE(HAVE_LD_SYSROOT, 1, + [Define if your linker supports --sysroot.]) +fi + if test x$with_sysroot = x && test x$host = x$target \ && test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include", |