id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,port 51311,libgcc @6.1.0_0 building fails,lpn25,macports-tickets@…,"Building fails when upgrading libgcc from 5.3.0_1 to 6.1.0_0. This is on OS X 10.10.5; with Xcode 7.2.1 (the newer 7.3.1 doesn't seem to install on Yosemite) This is what it shows in /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc6/libgcc/main.log just before the first error: {{{ :info:build Comparing stages 2 and 3 :info:build warning: gcc/cc1-checksum.o differs :info:build warning: gcc/cc1obj-checksum.o differs :info:build warning: gcc/cc1objplus-checksum.o differs :info:build warning: gcc/cc1plus-checksum.o differs :info:build Bootstrap comparison failure! :info:build gcc/ipa-icf.o differs :info:build gcc/tree-ssa-structalias.o differs :info:build libcpp/expr.o differs :info:build make[2]: *** [compare] Error 1 :info:build make[2]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.or$ :info:build make[1]: *** [stage3-bubble] Error 2 :info:build make[1]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.or$ :info:build make: *** [bootstrap] Error 2 :info:build make: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_r$ :info:build Command failed: cd ""/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_relea$ :info:build Exit code: 2 :error:build org.macports.build for port libgcc returned: command execution failed :debug:build Error code: CHILDSTATUS 478 2 :debug:build Backtrace: command execution failed }}} ",defect,closed,Normal,,ports,2.3.4,duplicate,,,libgcc