DescriptionBuild: add -fno-tree-vrp to CXXFLAGS for gcc 4.7.0
That optimization breaks min() call in simultaneous-music-iterator.cc
leading to incorrect output and bogus barcheck errors.
Generalize STEPMAKE_GXXCODEGENBUG to show bug description with the flag.
GCC bug reported:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53239
Patch Set 1 #
MessagesTotal messages: 1
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