From 07037eeb43ca1e0ac2802e3a1492cecf869c63c6 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Thu, 8 Mar 2012 00:17:27 +0000
Subject: Fix .ctors/.dtors header configure test for bootstrapping.

---
 aclocal.m4 | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'aclocal.m4')

diff --git a/aclocal.m4 b/aclocal.m4
index dafa97244d..02ff9bc359 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -113,3 +113,17 @@ AC_CACHE_CHECK(whether $LD is GNU ld, libc_cv_prog_ld_gnu,
 [LIBC_PROG_FOO_GNU($LD, libc_cv_prog_ld_gnu=yes, libc_cv_prog_ld_gnu=no)])
 gnu_ld=$libc_cv_prog_ld_gnu
 ])
+
+dnl Run a static link test with -nostdlib -nostartfiles.
+dnl LIBC_TRY_LINK_STATIC([code], [action-if-true], [action-if-false])
+AC_DEFUN([LIBC_TRY_LINK_STATIC],
+[cat > conftest.c <<EOF
+int _start (void) { return 0; }
+int __start (void) { return 0; }
+$1
+EOF
+AS_IF([AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest
+		       conftest.c -static -nostartfiles -nostdlib
+		       1>&AS_MESSAGE_LOG_FD])],
+      [$2], [$3])
+rm -f conftest*])
-- 
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