File U_xdm_config-use-libtool-export-dynamic-option-... of Package xdm

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File U_xdm_config-use-libtool-export-dynamic-option-for-reverse.patch of Package xdm (Revision 2bcebab28cdcf8a756683bda259eaf64)

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From 8b7999f8e0f797a593ac2f4697ba3be983b421ae Mon Sep 17 00:00:00 2001
From: Gaetan Nadon <memsize@videotron.ca>
Date: Mon, 30 Aug 2010 07:39:56 -0400
Subject: [PATCH] config: use libtool -export-dynamic option for reverse dependencies

This replaces -rdynamic which is a GNU/Linux only solution.

"If symbols from your executable are needed to satisfy unresolved
references in a library you want to dlopen you will have to use
the flag -export-dynamic. You should use -export-dynamic while
linking the executable that calls dlopen."

It is used by the xserver, in Xdmx for example.

Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
---
 Makefile.am  |    5 ++++-
 configure.ac |    9 ---------
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index fa1b0c4..15abb8c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -45,7 +45,10 @@ AM_CFLAGS = $(CWARNFLAGS)
 #
 
 xdm_CFLAGS = $(XDM_CFLAGS)
-xdm_LDADD = $(XDM_LIBS) $(XDM_LDFLAGS)
+# The xdm binary needs to export symbols so that they can be used from
+# libXdmGreet.so loaded through a dlopen call from session.c
+xdm_LDFLAGS =  -export-dynamic
+xdm_LDADD = $(XDM_LIBS)
 
 xdm_SOURCES =	\
         auth.c \
--- xdm-1.1.10/configure.ac.orig	2011-08-25 12:23:38.000000000 +0200
+++ xdm-1.1.10/configure.ac	2011-08-25 13:51:34.000000000 +0200
@@ -408,14 +408,6 @@ if test "x$DYNAMIC_GREETER" = "xyes" ; t
 
 	GREETER_CFLAGS="$GREETER_CFLAGS -DGREET_LIB"
 
-	# The xdm binary needs to export symbols so that they can be used from
-	# libXdmGreet.so.  Some platforms require extra flags to do this.   
-	# gcc should set these flags when -rdynamic is passed to it, other 
-	# compilers/linkers may need to be added
-	if test "x$GCC" = "xyes"; then
-		XDM_LDFLAGS="$XDM_LDFLAGS -rdynamic"
-	fi	
-
 	PKG_CHECK_MODULES(XDMGREET, xt x11 xext)
 
 	GREETERLIB="${XDMLIBDIR}/libXdmGreet.so"
@@ -471,7 +463,6 @@ AC_SEARCH_LIBS(crypt, crypt)
 
 AC_SUBST(XDM_CFLAGS)
 AC_SUBST(XDM_LIBS)
-AC_SUBST(XDM_LDFLAGS)
 
 #
 # xdmshell

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File U_xdm_config-use-libtool-export-dynamic-option-for-reverse.patch of Package xdm (Revision 2bcebab28cdcf8a756683bda259eaf64)

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