freebsd-nq/lib/libclang_rt/Makefile.inc
Enji Cooper 9a41926bfb CXXSTD is the C++ analogue to CSTD.
CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.

This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.

As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.

Notes:

This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.

Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:

Before this commit:
```
CXXFLAGS+=	-std=c++14
```

After this commit:
```
CXXSTD=	c++14
```

Reviewed by:	asomers
Approved by:	emaste (mentor)
MFC after:	1 month
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D19732
2019-03-29 18:13:44 +00:00

45 lines
1.0 KiB
Makefile

# $FreeBSD$
.include <bsd.compiler.mk>
# armv[67] is a bit special since we allow a soft-floating version via
# CPUTYPE matching *soft*. This variant may not actually work though.
.if ${MACHINE_ARCH:Marmv[67]*} != "" && \
(!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "")
CRTARCH?= armhf
.else
CRTARCH?= ${MACHINE_CPUARCH:C/amd64/x86_64/}
.endif
CRTSRC= ${SRCTOP}/contrib/compiler-rt
.PATH: ${CRTSRC}/lib
CLANGDIR= /usr/lib/clang/8.0.0
LIBDIR= ${CLANGDIR}/lib/freebsd
SHLIBDIR= ${LIBDIR}
NO_PIC=
MK_PROFILE= no
WARNS?= 0
SSP_CFLAGS=
CFLAGS+= -DNDEBUG
CFLAGS+= -DHAVE_RPC_XDR_H=0
CFLAGS+= -DHAVE_TIRPC_RPC_XDR_H=0
CFLAGS+= -DSANITIZER_SUPPORTS_WEAK_HOOKS=0
CFLAGS+= -DUBSAN_CAN_USE_CXXABI
CFLAGS+= ${PICFLAG}
CFLAGS+= -fno-builtin
CFLAGS+= -fno-exceptions
CXXFLAGS+= -fno-rtti
.if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 30700
CFLAGS+= -fno-sanitize=safe-stack
.endif
CFLAGS+= -fno-stack-protector
CFLAGS+= -funwind-tables
CXXFLAGS+= -fvisibility-inlines-hidden
CXXFLAGS+= -fvisibility=hidden
CFLAGS+= -I${CRTSRC}/lib
CXXSTD= c++11