From: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Date: Fri, 10 Apr 2009 14:44:08 +0000 (+0200)
Subject: Skip `Multiple languages' test if CC is a C++ compiler.
X-Git-Tag: v2.64~92
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e65a39811a1f6fbfb04065fe2a58c2833b2fd789;p=thirdparty%2Fautoconf.git

Skip `Multiple languages' test if CC is a C++ compiler.

* tests/compile.at (Multiple languages): Before starting the
test proper, build and run a configure script that tests the
C compiler only, and skips the test if this is found to be a
C++ compiler.
Report by Eric Blake.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
---

diff --git a/ChangeLog b/ChangeLog
index 5daf08b59..3272e5f6c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2009-04-10  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
+	Skip `Multiple languages' test if CC is a C++ compiler.
+	* tests/compile.at (Multiple languages): Before starting the
+	test proper, build and run a configure script that tests the
+	C compiler only, and skips the test if this is found to be a
+	C++ compiler.
+	Report by Eric Blake.
+
 	Note that AC_DEFUN is needed for aclocal.
 	* doc/autoconf.texi (Coding Style): Public third-party macros
 	should be AC_DEFUN'ed.
diff --git a/tests/compile.at b/tests/compile.at
index 628996002..6ca4ef433 100644
--- a/tests/compile.at
+++ b/tests/compile.at
@@ -203,6 +203,22 @@ AC_TRY_LINK_FUNC(Be_doomed_if_your_libc_has_a_function_named_like_this,
 
 AT_SETUP([Multiple languages])
 
+# This test should be skipped if the C compiler is a C++ compiler.
+AT_DATA([configure.ac],
+[[AC_INIT
+
+AC_PROG_CC
+AC_COMPILE_IFELSE([
+  AC_LANG_PROGRAM([[
+    #ifdef __cplusplus
+    choke me
+    #endif
+  ]])], [], AS_EXIT([77]))
+]])
+
+AT_CHECK_AUTOCONF
+AT_CHECK_CONFIGURE
+
 AT_DATA([configure.ac],
 [[AC_INIT