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c5b7f29ef5
freebsd-ports/Mk/Uses/compiler.mk
Nathan Whitehorn 2ac785c621 Avoid using clang as a fallback compiler on Tier-2 systems for C++0x 
or C11 features on platforms where it is not known to work.
2014-06-29 20:35:05 +00:00

229 lines
6.6 KiB
Makefile
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# $FreeBSD$
#
# Allows to determine the compiler being used
#
# Feature: compiler
# Usage: USES=compiler or USES=compiler:ARGS
# Valid ARGS: env (default, implicit) c++0x c++11-lib c++11-lang c11 openmp nestedfct features
#
# c++0x: The port needs a compiler understanding C++0X
# c++11-lang: The port needs a compiler understanding C++11
# gcc-c++11-lib:The port needs g++ compiler with a C++11 library
# c++11-lib: The port needs a compiler understanding C++11 and with a C++11 ready standard library
# c11: The port needs a compiler understanding C11
# openmp: The port needs a compiler understanding openmp
# nestedfct: The port needs a compiler understanding nested functions
# features: The port will determine the features supported by the default compiler
#
# Variable to test after <bsd.port.pre.mk>
#
# COMPILER_TYPE: can be gcc or clang
# ALT_COMPILER_TYPE: can be gcc or clang depending on COMPILER_TYPE, only set if the base system has 2 compilers
# COMPILER_VERSION: first 2 digits of the version: 33 for clang 3.3.*, 47 for gcc 4.7.*
# ALT_COMPILER_VERSION: first 2 digits of the version: 33 for clang 3.3.*, 47 for gcc 4.7.* of the ALT_COMPILER_TYPE
#
# COMPILER_FEATURES: the list of features supported by the compiler includes the standard C++ library.
# CHOSEN_COMPILER_TYPE: can be gcc or clang (type of compiler chosen by the framework)
#
# MAINTAINER: portmgr@FreeBSD.org
.if !defined(_INCLUDE_USES_COMPILER_MK)
_INCLUDE_USES_COMPILER_MK= yes
.if !defined(compiler_ARGS)
compiler_ARGS= env
.endif
VALID_ARGS= c++11-lib c++11-lang c11 features openmp env nestedfct c++0x gcc-c++11-lib
.if ${compiler_ARGS} == gcc-c++11-lib
_COMPILER_ARGS+= features gcc-c++11-lib
.elif ${compiler_ARGS} == c++11-lib
_COMPILER_ARGS+= features c++11-lib
.elif ${compiler_ARGS} == c++0x
_COMPILER_ARGS+= features c++0x
.elif ${compiler_ARGS} == c++11-lang
_COMPILER_ARGS+= features c++11-lang
.elif ${compiler_ARGS} == c11
_COMPILER_ARGS+= features c11
.elif ${compiler_ARGS} == features
_COMPILER_ARGS+= features
.elif ${compiler_ARGS} == env
_COMPILER_ARGS+= env
.elif ${compiler_ARGS} == openmp
_COMPILER_ARGS+= env openmp
.elif ${compiler_ARGS} == nestedfct
_COMPILER_ARGS+= env nestedfct
.else
IGNORE= Invalid argument "${compiler_ARGS}", valid arguments are: ${VALID_ARGS}
_COMPILER_ARGS= #
.endif
.if ${_COMPILER_ARGS:Mc++*} || ${_COMPILER_ARGS:Mc11}
_COMPILER_ARGS+= features
.endif
_CCVERSION!= ${CC} --version
COMPILER_VERSION= ${_CCVERSION:M[0-9].[0-9]*:C/([0-9]).([0-9]).*/\1\2/g}
.if ${_CCVERSION:Mclang}
COMPILER_TYPE= clang
.else
COMPILER_TYPE= gcc
.endif
ALT_COMPILER_VERSION= 0
ALT_COMPILER_TYPE= none
_ALTCCVERSION=
.if ${COMPILER_TYPE} == gcc && exists(/usr/bin/clang)
.if ${ARCH} == amd64 || ${ARCH} == i386 # clang often non-default for a reason
_ALTCCVERSION!= /usr/bin/clang --version
.endif
.elif ${COMPILER_TYPE} == clang && exists(/usr/bin/gcc)
_ALTCCVERSION!= /usr/bin/gcc --version
.endif
ALT_COMPILER_VERSION= ${_ALTCCVERSION:M[0-9].[0-9]*:C/([0-9]).([0-9]).*/\1\2/g}
.if ${_ALTCCVERSION:Mclang}
ALT_COMPILER_TYPE= clang
.elif !empty(_ALTCCVERSION)
ALT_COMPILER_TYPE= gcc
.endif
CHOSEN_COMPILER_TYPE= ${COMPILER_TYPE}
.if ${_COMPILER_ARGS:Mopenmp}
.if ${COMPILER_TYPE} == clang
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
.endif
.endif
.if ${_COMPILER_ARGS:Mnestedfct}
.if ${COMPILER_TYPE} == clang
USE_GCC= any
CHOSEN_COMPILER_TYPE= gcc
.endif
.endif
.if ${_COMPILER_ARGS:Mfeatures}
_CXXINTERNAL!= ${CXX} -\#\#\# /dev/null 2>&1
.if ${_CXXINTERNAL:M\"-lc++\"}
COMPILER_FEATURES= libc++
.else
COMPILER_FEATURES= libstdc++
.endif
CSTD= c89 c99 c11 gnu89 gnu99 gnu11
CXXSTD= c++98 c++11 gnu++98 gnu++11 c++0x
.for std in ${CSTD} ${CXXSTD}
_LANG=c
.if ${CXXSTD:M${std}}
_LANG=c++
.endif
OUTPUT_${std}!= echo | ${CC} -std=${std} -c -x ${_LANG} /dev/null -o /dev/null 2>&1; echo
.if !${OUTPUT_${std}:M*error*}
COMPILER_FEATURES+= ${std}
.endif
.endfor
.endif
.if ${_COMPILER_ARGS:Mc++11-lib}
.if !${COMPILER_FEATURES:Mc++11}
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
.elif ${COMPILER_TYPE} == clang && ${COMPILER_FEATURES:Mlibstdc++}
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
.endif
.endif
.if ${_COMPILER_ARGS:Mc++11-lang}
.if !${COMPILER_FEATURES:Mc++11}
.if (defined(FAVORITE_COMPILER) && ${FAVORITE_COMPILER} == gcc) || (${ARCH} != amd64 && ${ARCH} != i386) # clang not always supported on Tier-2
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
.elif (${COMPILER_TYPE} == clang && ${COMPILER_VERSION} < 33) || ${COMPILER_TYPE} == gcc
.if ${ALT_COMPILER_TYPE} == clang && ${ALT_COMPILER_VERSION} >= 33
CPP= clang-cpp
CC= clang
CXX= clang++
CHOSEN_COMPILER_TYPE= clang
.else
BUILD_DEPENDS+= ${LOCALBASE}/bin/clang33:${PORTSDIR}/lang/clang33
CPP= ${LOCALBASE}/bin/clang-cpp33
CC= ${LOCALBASE}/bin/clang33
CXX= ${LOCALBASE}/bin/clang++33
CHOSEN_COMPILER_TYPE= clang
.if ${OSVERSION} < 900033
USE_BINUTILS= yes
LDFLAGS+= -B${LOCALBASE}/bin
.endif
.endif
.endif
.endif
.endif
.if ${_COMPILER_ARGS:Mc++0x}
.if !${COMPILER_FEATURES:Mc++0x}
.if (defined(FAVORITE_COMPILER) && ${FAVORITE_COMPILER} == gcc) || (${ARCH} != amd64 && ${ARCH} != i386) # clang not always supported on Tier-2
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
.elif (${COMPILER_TYPE} == clang && ${COMPILER_VERSION} < 33) || ${COMPILER_TYPE} == gcc
.if ${ALT_COMPILER_TYPE} == clang && ${ALT_COMPILER_VERSION} >= 33
CPP= clang-cpp
CC= clang
CXX= clang++
CHOSEN_COMPILER_TYPE= clang
.else
BUILD_DEPENDS+= ${LOCALBASE}/bin/clang33:${PORTSDIR}/lang/clang33
CHOSEN_COMPILER_TYPE= clang
CPP= ${LOCALBASE}/bin/clang-cpp33
CC= ${LOCALBASE}/bin/clang33
CXX= ${LOCALBASE}/bin/clang++33
.if ${OSVERSION} < 900033
USE_BINUTILS= yes
LDFLAGS+= -B${LOCALBASE}/bin
.endif
.endif
.endif
.endif
.endif
.if ${_COMPILER_ARGS:Mc11}
.if !${COMPILER_FEATURES:Mc11}
.if (defined(FAVORITE_COMPILER) && ${FAVORITE_COMPILER} == gcc) || (${ARCH} != amd64 && ${ARCH} != i386) # clang not always supported on Tier-2
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
.elif (${COMPILER_TYPE} == clang && ${COMPILER_VERSION} < 33) || ${COMPILER_TYPE} == gcc
.if ${ALT_COMPILER_TYPE} == clang && ${ALT_COMPILER_VERSION} >= 33
CPP= clang-cpp
CC= clang
CXX= clang++
CHOSEN_COMPILER_TYPE= clang
.else
BUILD_DEPENDS+= ${LOCALBASE}/bin/clang33:${PORTSDIR}/lang/clang33
CHOSEN_COMPILER_TYPE= clang
CPP= ${LOCALBASE}/bin/clang-cpp33
CC= ${LOCALBASE}/bin/clang33
CXX= ${LOCALBASE}/bin/clang++33
.if ${OSVERSION} < 900033
USE_BINUTILS= yes
LDFLAGS+= -B${LOCALBASE}/bin
.endif
.endif
.endif
.endif
.endif
.if ${_COMPILER_ARGS:Mgcc-c++11-lib}
USE_GCC= yes
.if ${COMPILER_FEATURES:Mlibc++}
LDFLAGS+= -L${LOCALBASE}/lib/c++
CXXFLAGS+= -nostdinc++ -isystem ${LOCALBASE}/include/c++/v1
BUILD_DEPENDS+= ${LOCALBASE}/lib/c++/libstdc++.so:${PORTSDIR}/devel/libc++
.endif
.endif
.endif
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