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after gcc linking has changed, all the libraries must be explicitely specified 
This patch avoids these linking errors:

|   CCLD   xeglgears
| /build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/libexec/armv5te-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.5.1/ld: xeglthreads.o: undefined reference to symbol 'pthread_join@@GLIBC_2.4'
| /build_disk/poky_build/build0/tmp/sysroots/x86_64-linux/usr/libexec/armv5te-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.5.1/ld: note: 'pthread_join@@GLIBC_2.4' is defined in DSO /build_disk/poky_build/build0/tmp/sysroots/qemuarm/lib/libpthread.so.0 so try adding it to the linker command line
| /build_disk/poky_build/build0/tmp/sysroots/qemuarm/lib/libpthread.so.0: could not read symbols: Invalid operation
| collect2: ld returned 1 exit status


Nitin A Kamble <nitin.a.kamble@intel.com>
Date: 2011/02/03


Index: mesa-demos-8.0.1/src/egl/opengl/Makefile.am
===================================================================
--- mesa-demos-8.0.1.orig/src/egl/opengl/Makefile.am	2010-07-07 10:57:15.000000000 -0700
+++ mesa-demos-8.0.1/src/egl/opengl/Makefile.am	2011-02-03 14:30:13.928486381 -0800
@@ -67,3 +67,4 @@
 
 eglgears_x11_LDADD = ../eglut/libeglut_x11.la
 egltri_x11_LDADD = ../eglut/libeglut_x11.la
+xeglthreads_LDADD = -lpthread