mirror of
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c03743e5b7
information in the light of us only encountering at most one version (GCC 4.2) in the base system these days.
146 lines
4.2 KiB
Makefile
146 lines
4.2 KiB
Makefile
#-*- tab-width: 4; -*-
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# ex:ts=4
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#
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# bsd.gcc.mk - Support for smarter USE_GCC usage.
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#
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# Created by: Edwin Groothuis <edwin@freebsd.org>
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#
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# To request the use of a current version of GCC, specify USE_GCC=yes in
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# your port/system configuration. This is the preferred use of USE_GCC.
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# It uses the canonical version of GCC defined in bsd.default-versions.mk.
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#
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# USE_GCC=any is similar, except that it also accepts the old GCC 4.2-
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# based system compiler where still present.
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#
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# If your port needs a specific (minimum) version of GCC, you can easily
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# specify that with a USE_GCC= statement. Unless absolutely necessary
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# do so by specifying USE_GCC=X+ which requests at least GCC version X.
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# To request a specific version omit the trailing + sign.
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#
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# Examples:
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# USE_GCC= yes # port requires a current version of GCC
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# # as defined in bsd.default-versions.mk.
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# USE_GCC= any # port requires GCC 4.2 or later.
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# USE_GCC= 9+ # port requires GCC 9 or later.
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# USE_GCC= 8 # port requires GCC 8.
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#
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# If you are wondering what your port exactly does, use "make test-gcc"
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# to see some debugging.
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#
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# $FreeBSD$
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GCC_Include_MAINTAINER= gerald@FreeBSD.org
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# All GCC versions supported by the ports framework. Keep them in
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# ascending order and in sync with the table below.
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# When updating this, keep Mk/bsd.default-versions.mk in sync.
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GCCVERSIONS= 4.8 7 8 9
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# No configurable parts below this. ####################################
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#
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.if defined(USE_GCC) && !defined(FORCE_BASE_CC_FOR_TESTING)
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.if ${USE_GCC} == any && exists(/usr/bin/gcc)
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CC:= gcc
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CXX:= g++
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. if exists(/usr/bin/gcpp)
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CPP:= gcpp
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. else
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CPP:= cpp
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. endif
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.else # The regular approach, not using the age-old base compiler.
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# Handle USE_GCC=yes and USE_GCC=any.
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.if ${USE_GCC} == yes || ${USE_GCC} == any
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USE_GCC= ${GCC_DEFAULT}+
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.endif
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# See if we can use a later version or exclusively the one specified.
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_USE_GCC:= ${USE_GCC:S/+//}
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.if ${USE_GCC} != ${_USE_GCC}
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_GCC_ORLATER:= true
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.endif
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# See whether we have the specific version requested installed already
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# and save that into _GCC_FOUND. In parallel, check if USE_GCC refers
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# to a valid version to begin with.
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.for v in ${GCCVERSIONS}
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. if ${_USE_GCC} == ${v}
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_GCCVERSION_OKAY= true
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. if exists(${LOCALBASE}/bin/gcc${v:S/.//})
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_GCC_FOUND:= ${_USE_GCC}
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. endif
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. endif
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.endfor
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.if !defined(_GCCVERSION_OKAY)
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IGNORE= Unknown version of GCC specified (USE_GCC=${USE_GCC})
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.endif
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# If the GCC package defined in USE_GCC does not exist, but a later
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# version is allowed (for example 8+), go and use the default.
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.if defined(_GCC_ORLATER)
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. if !defined(_GCC_FOUND) && ${_USE_GCC} < ${GCC_DEFAULT}
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_USE_GCC:= ${GCC_DEFAULT}
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. endif
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.endif # defined(_GCC_ORLATER)
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# A concrete version has been selected. Set proper ports dependencies,
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# CC, CXX, CPP, and flags.
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V:= ${_USE_GCC:S/.//}
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_GCC_PORT:= gcc${V}
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CC:= gcc${V}
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CXX:= g++${V}
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CPP:= cpp${V}
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_GCC_RUNTIME:= ${LOCALBASE}/lib/gcc${V}
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. if ${PORTNAME} == gcc
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# We don't want the rpath stuff while building GCC itself
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# so we do not set the FLAGS as done in the else part.
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# When building a GCC, we want the target libraries to be used and not the
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# host GCC libraries.
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. else
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CFLAGS+= -Wl,-rpath=${_GCC_RUNTIME}
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CXXFLAGS+= -Wl,-rpath=${_GCC_RUNTIME}
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LDFLAGS+= -Wl,-rpath=${_GCC_RUNTIME} -L${_GCC_RUNTIME}
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. endif
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.undef V
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# Now filter unsupported flags for CC and CXX.
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CFLAGS:= ${CFLAGS:N-mretpoline}
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CXXFLAGS:= ${CXXFLAGS:N-mretpoline}
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.if defined(_GCC_PORT)
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BUILD_DEPENDS+= ${CC}:lang/${_GCC_PORT}
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RUN_DEPENDS+= ${CC}:lang/${_GCC_PORT}
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# GCC ports already depend on binutils; make sure whatever we build
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# leverages this as well.
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USE_BINUTILS= yes
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.endif
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.endif # USE_GCC=any
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.endif # defined(_USE_GCC) && !defined(FORCE_BASE_CC_FOR_TESTING)
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test-gcc:
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@echo USE_GCC=${USE_GCC}
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.if defined(IGNORE)
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@echo "IGNORE: ${IGNORE}"
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.else
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.if defined(USE_GCC)
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.if defined(_GCC_ORLATER)
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@echo Port can use later versions.
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.else
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@echo Port cannot use later versions.
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.endif
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@echo Using GCC version ${_USE_GCC}
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.endif
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@echo CC=${CC} - CXX=${CXX} - CPP=${CPP}
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@echo CFLAGS=\"${CFLAGS}\"
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@echo CXXFLAGS=\"${CXXFLAGS}\"
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@echo LDFLAGS=\"${LDFLAGS}\"
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@echo "BUILD_DEPENDS=${BUILD_DEPENDS}"
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@echo "RUN_DEPENDS=${RUN_DEPENDS}"
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.endif
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