From c29a99d7f3931f9b0559c56056d887fb3b2e52df Mon Sep 17 00:00:00 2001
From: Arch Librarian <arch@canonical.com>
Date: Mon, 20 Sep 2004 16:58:19 +0000
Subject: Add macro for detecting the output filename for gcc -MD... Author:
 doogie Date: 2001-05-29 05:25:06 GMT Add macro for detecting the output
 filename for gcc -MD(3.0 changed it).

---
 buildlib/tools.m4 | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'buildlib')

diff --git a/buildlib/tools.m4 b/buildlib/tools.m4
index cb57bb34f..9ad0bd05a 100644
--- a/buildlib/tools.m4
+++ b/buildlib/tools.m4
@@ -135,3 +135,23 @@ _LIBSTDCPP_
 	fi
 	AC_SUBST(LIBSTDCPP_VER)
 ])
+
+AC_DEFUN(ah_GCC3DEP,[
+	AC_MSG_CHECKING(if $CXX -MD works)
+	touch gcc3dep.cc
+	${CXX-c++} -MD -o gcc3dep_test.o -c gcc3dep.cc
+	rm -f gcc3dep.cc gcc3dep_test.o
+	if test -e gcc3dep.d; then
+		rm -f gcc3dep.d
+		GCC_MD=input
+		GCC3DEP=no
+	elif test -e gcc3dep_test.d; then
+		rm -f gcc3dep_test.d
+		GCC_MD=output
+		GCC3DEP=yes
+	else
+		AC_MSG_ERROR(no)
+	fi
+	AC_MSG_RESULT([yes, for $GCC_MD])
+	AC_SUBST(GCC3DEP)
+])
-- 
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