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-rw-r--r--configure.in13
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 5dab7d6960..77e91e30c7 100644
--- a/configure.in
+++ b/configure.in
@@ -1219,6 +1219,19 @@ EOF
AC_DEFINE(HAVE_INITFINI_ARRAY)
fi
+ AC_CACHE_CHECK(for libunwind-support in compiler,
+ libc_cv_cc_with_libunwind, [dnl
+ AC_TRY_LINK([#include <libunwind.h>], [
+ unw_context_t uc;
+ unw_cursor_t c;
+ unw_getcontext (&uc);
+ unw_init_local (&c, &uc)],
+ libc_cv_cc_with_libunwind=yes, libc_cv_cc_with_libunwind=no)])
+ AC_SUBST(libc_cv_cc_with_libunwind)
+ if test $libc_cv_cc_with_libunwind = yes; then
+ AC_DEFINE(HAVE_CC_WITH_LIBUNWIND)
+ fi
+
AC_CACHE_CHECK(for -z nodelete option,
libc_cv_z_nodelete, [dnl
cat > conftest.c <<EOF