From: Bruno Haible <bruno@clisp.org>
Date: Thu, 18 Sep 2025 18:57:26 +0000 (+0200)
Subject: stack-trace: Add support for Oracle DeveloperStudio cc.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=153cf1abe67b48479dd8c40deb0f49a3b45db8ac;p=thirdparty%2Fgnulib.git

stack-trace: Add support for Oracle DeveloperStudio cc.

* m4/stack-trace.m4 (gl_STACK_TRACE_EARLY): Use option
'-Wl,-export-dynamic' instead of '-rdynamic'.
---

diff --git a/ChangeLog b/ChangeLog
index 74d54e24b4..503732632e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2025-09-18  Bruno Haible  <bruno@clisp.org>
+
+	stack-trace: Add support for Oracle DeveloperStudio cc.
+	* m4/stack-trace.m4 (gl_STACK_TRACE_EARLY): Use option
+	'-Wl,-export-dynamic' instead of '-rdynamic'.
+
 2025-09-18  Pádraig Brady  <P@draigBrady.com>
 
 	localcharset: fix macOS build
diff --git a/m4/stack-trace.m4 b/m4/stack-trace.m4
index abf6fc21b4..b8c8297abd 100644
--- a/m4/stack-trace.m4
+++ b/m4/stack-trace.m4
@@ -1,5 +1,5 @@
 # stack-trace.m4
-# serial 4
+# serial 5
 dnl Copyright (C) 2024-2025 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -71,10 +71,13 @@ AC_DEFUN([gl_STACK_TRACE_EARLY],
           if test $CAN_PRINT_STACK_TRACE = 1; then
             dnl Link all programs in such a way that the stack trace includes
             dnl the function names.
-            dnl '-rdynamic' is equivalent to '-Wl,-export-dynamic'.
+            dnl gcc supports '-rdynamic' as an option equivalent to
+            dnl '-Wl,-export-dynamic'. But cc from Oracle DeveloperStudio 12.6
+            dnl converts '-rdynamic' into a linker option '-dynamic', which the
+            dnl linker does not understand. So better avoid '-rdynamic'.
             case "$host_os" in
               *-gnu* | gnu* | openbsd*)
-                LDFLAGS="$LDFLAGS -rdynamic"
+                LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
                 ;;
             esac
           fi