Author: imp
Date: Fri Aug 21 19:51:27 2015
New Revision: 287007
URL: https://svnweb.freebsd.org/changeset/base/287007
Log:
Document bsd.compiler.mk and the variables it defines.
Modified:
head/share/mk/bsd.README
Modified: head/share/mk/bsd.README
==============================================================================
--- head/share/mk/bsd.README Fri Aug 21 19:51:19 2015 (r287006)
+++ head/share/mk/bsd.README Fri Aug 21 19:51:27 2015 (r287007)
@@ -17,6 +17,7 @@ files. In most cases it is only interes
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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