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Add a COMPILER_FEATURES variable that is set in bsd.compiler.mk.

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When the compiler is clang add c++11 to COMPILER_FEATURES.

When the compiler supports c++11, default to building libc++.  This will
not impact the compliation of programs, but will make it easier for
users with clang compiled systems to test libc++ by passing -stdlib=libc++
to their c++ compliations.
This commit is contained in:
Brooks Davis 2012-09-26 17:25:15 +00:00
parent 37274fc04c
commit 815e67dd3b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=240966
2 changed files with 33 additions and 1 deletions
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6
share/mk/bsd.compiler.mk
View File

@ -19,3 +19,9 @@ COMPILER_TYPE:= clang
. undef _COMPILER_VERSION
. endif
.endif
.if ${COMPILER_TYPE} == "clang"
COMPILER_FEATURES= c++11
.else
COMPILER_FEATURES=
.endif

28
share/mk/bsd.own.mk
View File

@ -432,7 +432,6 @@ __DEFAULT_NO_OPTIONS = \
ICONV \
IDEA \
INSTALL_AS_USER \
LIBCPLUSPLUS \
NAND \
OFED \
SHARED_TOOLCHAIN
@ -642,6 +641,33 @@ MK_${vv:H}:= ${MK_${vv:T}}
.endif
.endfor
#
# MK_* options that default to "yes" if the compiler is a C++11 compiler.
#
.include <bsd.compiler.mk>
.for var in \
LIBCPLUSPLUS
.if defined(WITH_${var}) && defined(WITHOUT_${var})
.error WITH_${var} and WITHOUT_${var} can't both be set.
.endif
.if defined(MK_${var})
.error MK_${var} can't be set by a user.
.endif
.if ${COMPILER_FEATURES:Mc++11}
.if defined(WITHOUT_${var})
MK_${var}:= no
.else
MK_${var}:= yes
.endif
.else
.if defined(WITH_${var})
MK_${var}:= yes
.else
MK_${var}:= no
.endif
.endif
.endfor
.if ${MK_CTF} != "no"
CTFCONVERT_CMD= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
.elif defined(MAKE_VERSION) && ${MAKE_VERSION} >= 5201111300