From: Eli Zaretskii <eliz@gnu.org>
Date: Wed, 16 Jan 2002 18:23:00 +0000 (+0000)
Subject: Document problems with linking GCC-compiled libraries with a compiler
X-Git-Tag: emacs-21.2~184
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=7cf048944abb91698e6c3220a04495a8c0995b27;p=emacs.git

Document problems with linking GCC-compiled libraries with a compiler
other than GCC.
---

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 513e3fcaec4..28e9596fceb 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -27,6 +27,19 @@ the script).
 Note that this problem does not pertain to the MS-Windows port of
 Emacs, since it doesn't use the preprocessor to generate Makefiles.
 
+* Building Emacs with a system compiler fails during link stage.
+
+This can happen if some of the libraries linked into Emacs were built
+with GCC, but Emacs itself is being linked with a compiler other than
+GCC.  Object files compiled with GCC might need some helper functions
+from libgcc.a, the library which comes with GCC, but the system
+compiler does not instruct the linker to search libgcc.a during the
+link stage.
+
+A solution is to link with GCC, like this:
+
+  	make CC=gcc
+
 * Building the MS-Windows port with Cygwin GCC can fail.
 
 Emacs may not build using recent Cygwin builds of GCC, such as Cygwin