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# 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 nestedfct features
#
# c++0x: The port needs a compiler understanding C++0X
# c++11-lang: The port needs a compiler understanding C++11
# c++14-lang: The port needs a compiler understanding C++14
# c++17-lang: The port needs a compiler understanding C++17
# c++20-lang: The port needs a compiler understanding C++20
# c++2b-lang: The port needs a compiler understanding C++2b
# 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
# 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: ports@FreeBSD.org
.if !defined(_INCLUDE_USES_COMPILER_MK)
_INCLUDE_USES_COMPILER_MK= yes
. if empty(compiler_ARGS)
compiler_ARGS= env
. endif
VALID_ARGS= c++11-lib c++11-lang c++14-lang c++17-lang c++20-lang \
c++2b-lang c11 features env nestedfct c++0x gcc-c++11-lib
_CC_hash:= ${CC:hash}
_CXX_hash:= ${CXX:hash}
. 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} == c++14-lang
_COMPILER_ARGS+= features c++14-lang
. elif ${compiler_ARGS} == c++17-lang
_COMPILER_ARGS+= features c++17-lang
. elif ${compiler_ARGS} == c++20-lang
_COMPILER_ARGS+= features c++20-lang
. elif ${compiler_ARGS} == c++2b-lang
_COMPILER_ARGS+= features c++2b-lang
. elif ${compiler_ARGS} == c11
_COMPILER_ARGS+= features c11
. elif ${compiler_ARGS} == features
_COMPILER_ARGS+= features
. elif ${compiler_ARGS} == env
_COMPILER_ARGS+= env
. elif ${compiler_ARGS} == nestedfct
_COMPILER_ARGS+= env nestedfct
. else
IGNORE= Invalid argument "${compiler_ARGS}", valid arguments are: ${VALID_ARGS}
_COMPILER_ARGS= #
. endif
. if ${_COMPILER_ARGS:Mc++*} || ${_COMPILER_ARGS:Mc11}
_COMPILER_ARGS+= features
. endif
. if defined(_CCVERSION_${_CC_hash})
_CCVERSION= ${_CCVERSION_${_CC_hash}}
. else
_CCVERSION!= ${CC} --version
_CCVERSION_${_CC_hash}= ${_CCVERSION}
PORTS_ENV_VARS+= _CCVERSION_${_CC_hash}
. endif
COMPILER_VERSION= ${_CCVERSION:M[0-9]*.[0-9]*:[1]:C/([0-9]+)\.([0-9]+)\..*/\1\2/}
. if ${_CCVERSION:Mclang}
COMPILER_TYPE= clang
. else
COMPILER_TYPE= gcc
. endif
ALT_COMPILER_VERSION= 0
ALT_COMPILER_TYPE= none
_ALTCCVERSION= none
. if defined(_ALTCCVERSION_${_CC_hash})
_ALTCCVERSION= ${_ALTCCVERSION_${_CC_hash}}
. else
. 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 ${COMPILER_TYPE} == clang && exists(/usr/bin/gcc)
_ALTCCVERSION!= /usr/bin/gcc --version
. endif
_ALTCCVERSION_${_CC_hash}= ${_ALTCCVERSION}
PORTS_ENV_VARS+= _ALTCCVERSION_${_CC_hash}
. endif
ALT_COMPILER_VERSION= ${_ALTCCVERSION:M[0-9]*.[0-9]*:[1]:C/([0-9]+)\.([0-9]+)\..*/\1\2/}
. if ${_ALTCCVERSION:Mclang}
ALT_COMPILER_TYPE= clang
. elif ${_ALTCCVERSION} != none
ALT_COMPILER_TYPE= gcc
. endif
CHOSEN_COMPILER_TYPE= ${COMPILER_TYPE}
. if ${_COMPILER_ARGS:Mnestedfct}
. if ${COMPILER_TYPE} == clang
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
. endif
. endif
. if ${_COMPILER_ARGS:Mfeatures}
. if defined(_CXXINTERNAL_${_CXX_hash})
_CXXINTERNAL= ${_CXXINTERNAL_${_CXX_hash}}
. else
_CXXINTERNAL!= ${CXX} -\#\#\# /dev/null 2>&1
_CXXINTERNAL_${_CXX_hash}= ${_CXXINTERNAL}
PORTS_ENV_VARS+= _CXXINTERNAL_${_CXX_hash}
. endif
. if ${_CXXINTERNAL:M\"-lc++\"}
COMPILER_FEATURES= libc++
. else
COMPILER_FEATURES= libstdc++
. endif
CSTD= c89 c99 c11 gnu89 gnu99 gnu11
CXXSTD= c++98 c++0x c++11 c++14 c++17 c++20 c++2b \
gnu++98 gnu++11 gnu++14 gnu++17 gnu++20 gnu++2b
. for std in ${CSTD} ${CXXSTD}
_LANG=c
. if ${CXXSTD:M${std}}
_LANG=c++
. endif
. if defined(CC_OUTPUT_${_CC_hash}_${std:hash})
OUTPUT_${std}= ${CC_OUTPUT_${_CC_hash}_${std:hash}}
. else
OUTPUT_${std}!= if ${CC} -std=${std} -c -x ${_LANG} /dev/null -o /dev/null 2>&1; then echo yes; fi; echo
CC_OUTPUT_${_CC_hash}_${std:hash}= ${OUTPUT_${std}}
PORTS_ENV_VARS+= CC_OUTPUT_${_CC_hash}_${std:hash}
. endif
. 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++2b-lang} && !${COMPILER_FEATURES:Mc++2b}) || \
(${_COMPILER_ARGS:Mc++20-lang} && !${COMPILER_FEATURES:Mc++20}) || \
(${_COMPILER_ARGS:Mc++17-lang} && !${COMPILER_FEATURES:Mc++17}) || \
(${_COMPILER_ARGS:Mc++14-lang} && !${COMPILER_FEATURES:Mc++14}) || \
(${_COMPILER_ARGS:Mc++11-lang} && !${COMPILER_FEATURES:Mc++11}) || \
(${_COMPILER_ARGS:Mc++0x} && !${COMPILER_FEATURES:Mc++0x}) || \
(${_COMPILER_ARGS:Mc11} && !${COMPILER_FEATURES:Mc11})
. if ${_COMPILER_ARGS:Mc++2b-lang}
_LLVM_MINVER= 14
. elif ${_COMPILER_ARGS:Mc++20-lang}
_LLVM_MINVER= 11
. else
_LLVM_MINVER= 0
. endif
. 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 ${COMPILER_TYPE} == gcc || \
(${COMPILER_VERSION:C/[0-9]$//}<${_LLVM_MINVER})
. if ${ALT_COMPILER_TYPE} == clang && \
(${ALT_COMPILER_VERSION:C/[0-9]$//}>=${_LLVM_MINVER})
CPP= clang-cpp
CC= clang
CXX= clang++
CHOSEN_COMPILER_TYPE= clang
. else
. if ${LLVM_DEFAULT:C/^[789]0$/0/}<${_LLVM_MINVER}
_LLVM_REQ= ${_LLVM_MINVER}
. else
_LLVM_REQ= ${LLVM_DEFAULT}
. endif
BUILD_DEPENDS+= clang${_LLVM_REQ}:devel/llvm${_LLVM_REQ}
CPP= ${LOCALBASE}/bin/clang-cpp${_LLVM_REQ}
CC= ${LOCALBASE}/bin/clang${_LLVM_REQ}
CXX= ${LOCALBASE}/bin/clang++${_LLVM_REQ}
CHOSEN_COMPILER_TYPE= clang
. endif
. endif
. endif
. if ${_COMPILER_ARGS:Mgcc-c++11-lib}
USE_GCC= yes
CHOSEN_COMPILER_TYPE= gcc
. if ${COMPILER_FEATURES:Mlibc++}
CXXFLAGS+= -stdlib=libc++
. endif
. endif
.endif
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