* configure.ac (DWARF-2 debug_line): Use objdump.

[pf3gnuchains/gcc-fork.git] / gcc / configure.ac

diff --git a/gcc/configure.ac b/gcc/configure.ac
index 4576f15..59524c2 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -2794,8 +2794,9 @@ if test x"$insn" != x; then
  gcc_GAS_CHECK_FEATURE([dwarf2 debug_line support],
   gcc_cv_as_dwarf2_debug_line,
   [elf,2,11,0],, [$conftest_s],
-  [# ??? This fails with non-gnu grep.  Maybe use objdump?
-   if grep debug_line conftest.o > /dev/null 2>&1; then
+  [if test x$gcc_cv_objdump != x \
+   && $gcc_cv_objdump -h conftest.o 2> /dev/null \
+      | grep debug_line > /dev/null 2>&1; then
      gcc_cv_as_dwarf2_debug_line=yes
    fi])