The file config/mt-gnu currently defines CXXFLAGS_FOR_TARGET =
$(CXXFLAGS) -D_GNU_SOURCE. To me, it seems that it should be +=
-D_GNU_SOURCE (like most of the other frags). Otherwise, I cannot
override the CXXFLAGS without overriding CXXFLAGS_FOR_TARGET, etc.
--
Summary: config/mt-gnu CXXFLAGS_FOR_TARGET
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dougsemler at gmail dot com
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43538