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src.opts.mk: simplify Clang and lld bootstrap defaults

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With the retirement of GCC 4.2.1 we can assume the host compiler supports
C++11, and can simplify the Clang and LLD defaults.  Clang and lld are now
enabled by default everywhere, and are used as the bootstrap compiler and
linker for all targets except MIPS.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Ed Maste 2020-02-29 13:15:01 +00:00
parent bc527d9dfc
commit 83a08b7c09
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=358462
1 changed files with 7 additions and 14 deletions
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21
share/mk/src.opts.mk
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@ -78,6 +78,7 @@ __DEFAULT_YES_OPTIONS = \
CASPER \
CCD \
CDDL \
CLANG \
CPP \
CROSS_COMPILER \
CRYPT \
@ -126,6 +127,7 @@ __DEFAULT_YES_OPTIONS = \
LEGACY_CONSOLE \
LIBPTHREAD \
LIBTHR \
LLD \
LLVM_COV \
LLVM_TARGET_ALL \
LOADER_GELI \
@ -287,22 +289,13 @@ MK_LLVM_TARGET_SPARC:=no
__DEFAULT_NO_OPTIONS+=LLVM_TARGET_BPF
.include <bsd.compiler.mk>
# If the compiler is not C++11 capable, disable Clang. External toolchain will
# be required.
.if ${COMPILER_FEATURES:Mc++11} && (${__TT} != "mips")
# Clang is enabled, and will be installed as the default /usr/bin/cc.
__DEFAULT_YES_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_IS_CC LLD
.elif ${COMPILER_FEATURES:Mc++11}
# If an external compiler that supports C++11 is used as ${CC} and Clang
# supports the target, then Clang is enabled but we still require an external
# toolchain.
# default /usr/bin/cc.
__DEFAULT_YES_OPTIONS+=CLANG LLD
__DEFAULT_NO_OPTIONS+=CLANG_BOOTSTRAP CLANG_IS_CC
.if ${__TT} != "mips"
# Clang is installed as the default /usr/bin/cc.
__DEFAULT_YES_OPTIONS+=CLANG_BOOTSTRAP CLANG_IS_CC
.else
# Everything else disables Clang, and uses GCC instead.
__DEFAULT_NO_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_IS_CC LLD
# Clang is enabled but we still require an external toolchain.
__DEFAULT_NO_OPTIONS+=CLANG_BOOTSTRAP CLANG_IS_CC
.endif
# In-tree binutils/gcc are older versions without modern architecture support.
.if ${__T} == "aarch64" || ${__T:Mriscv*} != ""