From e56b7557bd05906fe814b49f7d2bef5917c0e969 Mon Sep 17 00:00:00 2001
From: "Gary V. Vaughan" <gary@gnu.org>
Date: Mon, 29 Nov 1999 21:32:12 +0000
Subject: [PATCH] * ltconfig.in:  Be friendlier to C++ compilers when testing
 for dlopen support. Reported by Stephan Kulow <coolo@itm.mu-luebeck.de>

---
 ChangeLog   |  6 ++++++
 ltconfig.in | 15 +++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 5cb509f3f..76a74c142 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+1999-11-29  Gary V. Vaughan  <gary@oranda.demon.co.uk>
+
+	* ltconfig.in:  Be friendlier to C++ compilers when testing
+	for dlopen support.
+	Reported by Stephan Kulow <coolo@itm.mu-luebeck.de>
+
 1999-11-26  Gary V. Vaughan  <gary@oranda.demon.co.uk>
 
 	* libtool.m4:  better use of $target instead of $host to support
diff --git a/ltconfig.in b/ltconfig.in
index 33a2c624a..f6d5f418b 100755
--- a/ltconfig.in
+++ b/ltconfig.in
@@ -2011,6 +2011,9 @@ cat > conftest.$ac_ext <<EOF
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 char dlopen();
 
 int main() {
@@ -2048,6 +2051,9 @@ else
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 char dlopen();
 
 int main() {
@@ -2091,6 +2097,9 @@ cat > conftest.$ac_ext <<EOF
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 char dld_link();
 
 int main() {
@@ -2128,6 +2137,9 @@ else
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 char shl_load();
 
 int main() {
@@ -2173,6 +2185,9 @@ cat > conftest.$ac_ext <<EOF
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
 char shl_load();
 
 int main() {
-- 
2.47.3