svn commit: r263373 - in head/share: examples/etc mk

[Ian Lepore]

Author: ian
Date: Wed Mar 19 18:54:53 2014
New Revision: 263373
URL: http://svnweb.freebsd.org/changeset/base/263373

Log:
  Add a way to apply CFLAGS only when building the given architecture.  This
  is useful primarily on a system used for cross-building, when you have a
  set of flags to apply to the TARGET_ARCH being cross-built but don't want
  those settings applied to building the cross-tools or other components that
  run on the build host machine.

Modified:
  head/share/examples/etc/make.conf
  head/share/mk/bsd.cpu.mk

Modified: head/share/examples/etc/make.conf
==============================================================================
--- head/share/examples/etc/make.conf	Wed Mar 19 17:53:09 2014	(r263372)
+++ head/share/examples/etc/make.conf	Wed Mar 19 18:54:53 2014	(r263373)
@@ -60,6 +60,12 @@
 # nonstandard optimization settings
 # before submitting bug reports without patches to the developers.
 #
+# CFLAGS.arch provides a mechanism for applying CFLAGS only when building 
+# the given architecture.  This is useful primarily on a system used for 
+# cross-building, when you have a set of flags to apply to the TARGET_ARCH 
+# being cross-built but don't want those settings applied to building the 
+# cross-tools or other components that run on the build host machine.  
+#
 # CXXFLAGS controls the compiler settings used when compiling C++ code.
 # Note that CXXFLAGS is initially set to the value of CFLAGS.  If you wish
 # to add to CXXFLAGS value, "+=" must be used rather than "=".  Using "="
@@ -71,6 +77,7 @@
 #
 # CFLAGS+=	-msse3
 # CXXFLAGS+=	-msse3
+# CFLAGS.armv6+= -mfloat-abi=softfp
 #
 # MAKE_SHELL controls the shell used internally by make(1) to process the
 # command scripts in makefiles.  Three shells are supported, sh, ksh, and

Modified: head/share/mk/bsd.cpu.mk
==============================================================================
--- head/share/mk/bsd.cpu.mk	Wed Mar 19 17:53:09 2014	(r263372)
+++ head/share/mk/bsd.cpu.mk	Wed Mar 19 18:54:53 2014	(r263373)
@@ -260,3 +260,7 @@ CFLAGS += -G0
 .if !defined(NO_CPU_CFLAGS)
 CFLAGS += ${_CPUCFLAGS}
 .endif
+
+# Add in any architecture-specific CFLAGS.  
+# These come from make.conf or the command line or the environment.
+CFLAGS += ${CFLAGS.${MACHINE_ARCH}}