Add support for clang.

mk/compiler.mk

@@ -1,4 +1,4 @@
-# $NetBSD: compiler.mk,v 1.71 2010/07/30 07:58:58 asau Exp $
+# $NetBSD: compiler.mk,v 1.72 2010/09/23 22:26:06 ahoka Exp $
 #
 # This Makefile fragment implements handling for supported C/C++/Fortran
 # compilers.
@@ -12,6 +12,7 @@
 #	Valid values are:
 #		ccc		Compaq C Compilers (Tru64)
 #		ccache		compiler cache (chainable)
+#		clang		Clang C and Objective−C compiler
 #		distcc		distributed C/C++ (chainable)
 #		f2c		Fortran 77 to C compiler (chainable)
 #		icc		Intel C++ Compiler (Linux)
@@ -101,7 +102,8 @@ COMPILER_USE_SYMLINKS?=	yes
 _USE_PKGSRC_GCC=	yes
 .endif
 
-_COMPILERS=		ccc gcc icc ido mipspro mipspro-ucode sunpro xlc hp pcc
+_COMPILERS=		ccc gcc icc ido mipspro mipspro-ucode \
+			sunpro xlc hp pcc clang
 _PSEUDO_COMPILERS=	ccache distcc f2c g95
 
 .if defined(NOT_FOR_COMPILER) && !empty(NOT_FOR_COMPILER)

mk/compiler/clang.mk

@@ -0,0 +1,76 @@
+# $NetBSD: clang.mk,v 1.1 2010/09/23 22:26:07 ahoka Exp $
+#
+# This is the compiler definition for the clang compiler.
+#
+# User-settable variables:
+#
+# CLANGBASE
+#	The base directory where the compiler is installed.
+#
+
+.if !defined(COMPILER_CLANG_MK)
+COMPILER_CLANG_MK=	defined
+
+# Add the dependency on clang
+# TODO: may be installed already, check for this
+BUILD_DEPENDS+= clang-[0-9]*:../../lang/clang
+
+.include "../../mk/bsd.prefs.mk"
+
+CLANGBASE?=		${PREFIX}
+
+LANGUAGES.clang=	# empty
+
+#_CLANG_DIR=		${WRKDIR}/.clang
+_CLANG_DIR=		${CLANGBASE}/bin
+_CLANG_VARS=		# empty
+
+.if exists(${CLANGBASE}/bin/clang)
+LANGUAGES.hp+=		c
+_CLANG_VARS+=		CC
+_CLANG_CC=		${_CLANG_DIR}/clang
+_ALIASES.CC=		cc gcc c89 c99
+CCPATH=			${CLANGBASE}/bin/clang
+PKG_CC:=		${_CLANG_CC}
+.endif
+
+# NOTE: clang C++ support is still experimental, enable later
+.if exists(${CLANGBASE}/bin/clang++)
+#LANGUAGES.hp+=		c++
+#_CLANG_VARS+=		CXX
+#_CLANG_CXX=		${_CLANG_DIR}/clang++
+#_ALIASES.CXX=		c++ g++
+#CXXPATH=		${CLANGBASE}/bin/clang++
+#PKG_CXX:=		${_CLANG_CXX}
+.endif
+
+_COMPILER_STRIP_VARS+=	${_CLANG_VARS}
+
+# Mimic GCC behaviour by defaulting to C89
+#.if !empty(USE_LANGUAGES:Mc99)
+#_WRAP_EXTRA_ARGS.CC+=	-std=gnu99
+#.else
+#_WRAP_EXTRA_ARGS.CC+=	-std=gnu89
+#.endif
+
+_LINKER_RPATH_FLAG=	-rpath,
+
+_COMPILER_RPATH_FLAG=	-Wl,-rpath,
+
+.if exists(${CCPATH})
+CC_VERSION_STRING!=	${CCPATH} -v 2>&1
+CC_VERSION!=		${CCPATH} -dumpversion 2>&1
+.else
+CC_VERSION_STRING?=	${CC_VERSION}
+CC_VERSION?=		clang
+.endif
+
+# _LANGUAGES.<compiler> is ${LANGUAGES.<compiler>} restricted to the
+# ones requested by the package in USE_LANGUAGES.
+#
+_LANGUAGES.clang=	# empty
+.for _lang_ in ${USE_LANGUAGES}
+_LANGUAGES.clang+=	${LANGUAGES.clang:M${_lang_}}
+.endfor
+
+.endif	# COMPILER_CLANG_MK