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59 lines
1.8 KiB
Makefile
59 lines
1.8 KiB
Makefile
# $FreeBSD$
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# Setup variables for the compiler
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#
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# COMPILER_TYPE is the major type of compiler. Currently gcc and clang support
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# automatic detection. Other compiler types can be shoe-horned in, but require
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# explicit setting of the compiler type. The compiler type can also be set
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# explicitly if, say, you install gcc as clang...
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#
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# COMPILER_VERSION is a numeric constant equal to:
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# major * 10000 + minor * 100 + tiny
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# It too can be overriden on the command line. When testing it, be sure to
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# make sure that you are limiting the test to a specific compiler. Testing
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# against 30300 for gcc likely isn't what you wanted (since versions of gcc
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# prior to 4.2 likely have no prayer of working).
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#
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# COMPILER_FEATURES will contain one or more of the following, based on
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# compiler support for that feature:
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#
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# - c++11 : supports full (or nearly full) C++11 programming environment.
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#
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# This file may be included multiple times, but only has effect the first time.
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#
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.if !target(__<bsd.compiler.mk>__)
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__<bsd.compiler.mk>__:
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.if !defined(COMPILER_TYPE) || !defined(COMPILER_VERSION)
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_v!= ${CC} --version 2>/dev/null || echo 0.0.0
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.if !defined(COMPILER_TYPE)
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. if ${CC:T:M*gcc*}
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COMPILER_TYPE:= gcc
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. elif ${CC:T:M*clang*}
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COMPILER_TYPE:= clang
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. elif ${_v:Mgcc}
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COMPILER_TYPE:= gcc
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. elif ${_v:M\(GCC\)}
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COMPILER_TYPE:= gcc
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. elif ${_v:Mclang}
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COMPILER_TYPE:= clang
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. else
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.error Unable to determine compiler type for ${CC}. Consider setting COMPILER_TYPE.
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. endif
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.endif
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.if !defined(COMPILER_VERSION)
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COMPILER_VERSION!=echo ${_v:M[1-9].[0-9]*} | awk -F. '{print $$1 * 10000 + $$2 * 100 + $$3;}'
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.endif
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.undef _v
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.endif
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.if ${COMPILER_TYPE} == "clang" || \
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(${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 40800)
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COMPILER_FEATURES= c++11
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.else
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COMPILER_FEATURES=
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.endif
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.endif # !target(__<bsd.compiler.mk>__)
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