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Document bsd.compiler.mk and the variables it defines.

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Warner Losh 2015-08-21 19:51:27 +00:00
parent 67ad267bf2
commit 10df57f9cf
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=287007
1 changed files with 21 additions and 0 deletions
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share/mk/bsd.README
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@ -17,6 +17,7 @@ files. In most cases it is only interesting to include bsd.prog.mk or
bsd.lib.mk.
bsd.arch.inc.mk - includes arch-specific Makefile.$arch
bsd.compiler.mk - defined based on current compiler
bsd.cpu.mk - sets CPU/arch-related variables (included from sys.mk)
bsd.dep.mk - handle Makefile dependencies
bsd.doc.mk - building troff system documents
@ -116,9 +117,29 @@ object.
The following variables are common:
CFLAGS.${COMPILER_TYPE}
Flags dependent on compiler added to CXXFLAGS.
CFLAGS.${MACHINE_ARCH}
Architectural flags added to CFLAGS.
CFLAGS_NO_SIMD Add this to CFLAGS for programs that don't want any SIMD
instructions generated. It is setup in bsd.cpu.mk to an
appropriate value for the compiler and target.
CXXFLAGS.${COMPILER_TYPE}
Flags dependent on compiler added to CXXFLAGS.
CXXFLAGS.${MACHINE_ARCH}
Architectural flags added to CXXFLAGS.
COMPILER_FEATURES
A list of features that the compiler supports. Zero or
more of:
c++11 Supports full C++ 11 standard.
COMPILER_TYPE Type of compiler, either clang or gcc, though other
values are possible. Don't assume != clang == gcc.
COMPILER_VERSION
A numeric constant equal to:
major * 10000 + minor * 100 + tiny
for the compiler's self-reported version.
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