On 02/22/2011 02:24 PM, Alan Coopersmith wrote:
On 02/22/11 09:39 AM, Antoine Martin wrote:
/usr/bin/ld: note: 'dlopen@@GLIBC_2.1' is defined in DSO /lib/libdl.so.2
so try adding it to the linker command line
/lib/libdl.so.2: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[3]: *** [Xvnc] Error 1
make[3]: Leaving directory
`/usr/src/tigervnc-1.0.90-r4305/xorg/xserver/hw/vnc'
The xserver upstream configure.ac sets up a DLOPEN_LIBS variable to add
to the LIBS each Xserver using dlopen needs to link with.
If libtool is working correctly, I think that should get passed automatically
via the os/libos.la file, since it has DLOPEN_LIBS in its libos_la_LIBADD.
This landed right after the Xorg 1.7 branch/release though, so you may be
missing it if you're building with Xorg 1.7.x or older:
http://cgit.freedesktop.org/xorg/xserver/commit/?id=d30637339963950910e5f5fb755b8465ac7dddb
The patch didn't apply cleanly to tigervnc's xserver 7.4.
I tried to apply it anyway (see result attached), but I just don't
understand this linker stuff well enough and now I get this one:
/usr/bin/ld: note: 'dlopen@@GLIBC_2.1' is defined in DSO
//lib/libdl.so.2 so try adding it to the linker command line
//lib/libdl.so.2: could not read symbols: Invalid operation
Antoine
diff -urN xserver.b/configure.ac xserver.a/configure.ac
--- xserver.b/configure.ac 2011-02-25 01:22:49.945271480 +0000
+++ xserver.a/configure.ac 2011-02-25 01:29:35.755272663 +0000
@@ -177,6 +177,7 @@
dnl has it in libc), or if libdl is needed to get it.
AC_CHECK_FUNC([dlopen], [],
AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl"))
+AC_SUBST(DLOPEN_LIBS)
case $host_os in
linux*)
@@ -830,7 +831,7 @@
AC_SUBST(XLIB_CFLAGS)
AC_DEFINE(GLXEXT, 1, [Build GLX extension])
GLX_LIBS='$(top_builddir)/glx/libglx.la'
- GLX_SYS_LIBS="$GLX_SYS_LIBS $DLOPEN_LIBS"
+ GLX_SYS_LIBS="$GLX_SYS_LIBS"
else
GLX=no
fi
@@ -1340,7 +1341,7 @@
AC_CHECK_FUNCS([pci_device_enable])
LIBS=$SAVE_LIBS
CFLAGS=$SAVE_CFLAGS
- XORG_SYS_LIBS="$XORG_SYS_LIBS $PCIACCESS_LIBS $DLOPEN_LIBS
$GLX_SYS_LIBS"
+ XORG_SYS_LIBS="$XORG_SYS_LIBS $PCIACCESS_LIBS $GLX_SYS_LIBS"
XORG_CFLAGS="$XORG_CFLAGS $PCIACCESS_CFLAGS"
case $host_os in
diff -urN xserver.b/configure.ac xserver.a/configure.ac
--- xserver.b/configure.ac 2011-02-25 01:19:04.645270008 +0000
+++ xserver.a/configure.ac 2011-02-25 01:22:49.945271480 +0000
@@ -177,7 +177,6 @@
dnl has it in libc), or if libdl is needed to get it.
AC_CHECK_FUNC([dlopen], [],
AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl"))
-AC_SUBST(DLOPEN_LIBS)
case $host_os in
linux*)
@@ -831,7 +830,7 @@
AC_SUBST(XLIB_CFLAGS)
AC_DEFINE(GLXEXT, 1, [Build GLX extension])
GLX_LIBS='$(top_builddir)/glx/libglx.la'
- GLX_SYS_LIBS="$GLX_SYS_LIBS"
+ GLX_SYS_LIBS="$GLX_SYS_LIBS $DLOPEN_LIBS"
else
GLX=no
fi
diff -urN xserver.b/glx/Makefile.am xserver.a/glx/Makefile.am
--- xserver.b/glx/Makefile.am 2011-02-25 01:22:49.945271480 +0000
+++ xserver.a/glx/Makefile.am 2011-02-25 01:24:11.905270010 +0000
@@ -56,6 +56,8 @@
extension_string.c \
extension_string.h
+libglxdri_la_LIBADD = $(DLOPEN_LIBS)
+
libglx_la_SOURCES = \
$(indirect_sources) \
$(glapi_sources) \
@@ -93,3 +95,5 @@
swap_interval.c \
unpack.h \
xfont.c
+
+libglx_la_LIBADD = $(DLOPEN_LIBS)
diff -urN xserver.b/glx/Makefile.am xserver.a/glx/Makefile.am
--- xserver.b/glx/Makefile.am 2011-02-25 01:19:04.645270008 +0000
+++ xserver.a/glx/Makefile.am 2011-02-25 01:22:49.945271480 +0000
@@ -56,8 +56,6 @@
extension_string.c \
extension_string.h
-libglxdri_la_LIBADD = $(DLOPEN_LIBS)
-
libglx_la_SOURCES = \
$(indirect_sources) \
$(glapi_sources) \
@@ -95,5 +93,3 @@
swap_interval.c \
unpack.h \
xfont.c
-
-libglx_la_LIBADD = $(DLOPEN_LIBS)
diff -urN xserver.b/hw/xfree86/loader/Makefile.am
xserver.a/hw/xfree86/loader/Makefile.am
--- xserver.b/hw/xfree86/loader/Makefile.am 2011-02-25 01:18:52.635270143
+0000
+++ xserver.a/hw/xfree86/loader/Makefile.am 2011-02-25 01:27:20.675271037
+0000
@@ -33,3 +33,4 @@
xf86sym.c \
sym.h \
$(SPARC_SOURCES)
+libloader_la_LIBADD = $(DLOPEN_LIBS)
diff -urN xserver.b/os/Makefile.am xserver.a/os/Makefile.am
--- xserver.b/os/Makefile.am 2011-02-25 01:18:52.695270015 +0000
+++ xserver.a/os/Makefile.am 2011-02-25 01:28:41.665269975 +0000
@@ -24,6 +24,7 @@
xstrans.c \
xprintf.c \
$(XORG_SRCS)
+libos_la_LIBADD = $(DLOPEN_LIBS)
if SECURE_RPC
libos_la_SOURCES += $(SECURERPC_SRCS)
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