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authorHarmen Stoppels <harmenstoppels@gmail.com>2022-05-21 23:44:51 +0200
committerGitHub <noreply@github.com>2022-05-21 23:44:51 +0200
commit2113b625d17178f24189c0059a6f360c181b589f (patch)
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parentc6c3d243e1f7f5672de8f862c10c9a5eee17a947 (diff)
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gcc: add `build_type` and `profiled` variants (#30660)
Add a `build_type` variant, which allows building optimized compilers, as well as target libraries (libstdc++ and friends). The default is `build_type=RelWithDebInfo`, which corresponds to GCC's default of -O2 -g. When building with `+bootstrap %gcc`, also add Spack's arch specific flags using the common denominator between host and new GCC. It is done by creating a config/spack.mk file in def patch, that looks as follows: ``` BOOT_CFLAGS := $(filter-out -O% -g%, $(BOOT_CFLAGS)) -O2 -g -march=znver2 -mtune=znver2 CFLAGS_FOR_TARGET := $(filter-out -O% -g%, $(CFLAGS_FOR_TARGET)) -O2 -g -march=znver2 -mtune=znver2 CXXFLAGS_FOR_TARGET := $(filter-out -O% -g%, $(CXXFLAGS_FOR_TARGET)) -O2 -g -march=znver2 -mtune=znver2 ```
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