As the variables VISIBILITY_FLAGS and WRAP_SYSTEM_INCLUDES in Makefile are set, causes the build of Firefox 1.5 (SeaMonkey too) to fail on PowerPC with undefined reference to functions in Glibc. Reproducible: Always Steps to Reproduce: 1. emerge =mozilla-firefox-1.5_rc1-r1 Actual Results: Fails on PowerPC with undefined reference to functions in Glibc. Expected Results: FireFox 1.5rc1 would have been built and working. To make a successfull build of FireFox 1.5 and SeaMonek (not in the portage yet as I can understand), you need to change the VISIBILITY_FLAGS='-I$(DIST)/include/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h' WRAP_SYSTEM_INCLUDES=1 to VISIBILITY_FLAGS='-fvisibility=hidden' WRAP_SYSTEM_INCLUDES= In the main Makefile before the configuration is done.
emerge info is missing. Please add it to the bug report.
I have changed out visibility patch that corrects this issues.