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| From: | Zack Weinberg |
| Subject: | Re: C++ pre-processor flags not updated by ax_cxx_compile_stdcxx.m4 |
| Date: | Sun, 20 Mar 2016 09:24:27 -0400 |
You don't want to put C++-specific switches in CPPFLAGS, because CPPFLAGS is used for all C-family languages. I think this is probably addressed by https://savannah.gnu.org/patch/?8818 which puts these mode selection switches in CXX instead.
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