150 lines
4.2 KiB
Makefile
150 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 this framework.
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#
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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 10 11
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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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. if ${V} == 11
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_GCC_PORT:= gcc${V}-devel
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. else
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_GCC_PORT:= gcc${V}
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. endif
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CC:= gcc${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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