xref: /freebsd/share/mk/bsd.compiler.mk (revision ee7b0571c2c18bdec848ed2044223cc88db29bd8)
1# $FreeBSD$
2
3# Setup variables for the compiler
4#
5# COMPILTER_TYPE is the major type of compiler. Currently gcc and clang support
6# automatic detetion. Other compiler types can be shoe-horned in, but require explicit
7# setting of the compiler type. The compiler type can also be set explicitly if, say,
8# you install gcc as clang...
9#
10# COMPILER_VERSION is a numeric constant equal to major * 10000 + minor * 100 + tiny. It
11# too can be overriden on the command line. When testing it, be sure to make sure that you
12# are limiting the test to a specific compiler. Testing against 30300 for gcc likely isn't
13# what you wanted (since versions of gcc prior to 4.2 likely have no prayer of working).
14#
15# COMPILER_FEATURES will contain one or more of the following, based on compiler support
16# for that feature: c++11 (supports full (or nearly full) C++11 programming environment).
17#
18# This file may be included multiple times, but only has effect the first time.
19#
20
21.if !target(__<bsd.compiler.mk>__)
22__<bsd.compiler.mk>__:
23
24.if ${MACHINE} == "common"
25COMPILER_TYPE= none
26COMPILER_VERSION= 0
27.else
28_v!=	${CC} --version 2>/dev/null || echo 0.0.0
29.endif
30
31.if !defined(COMPILER_TYPE)
32. if ${CC:T:M*gcc*}
33COMPILER_TYPE:=	gcc
34. elif ${CC:T:M*clang*}
35COMPILER_TYPE:=	clang
36. elif ${_v:Mgcc}
37COMPILER_TYPE:=	gcc
38. elif ${_v:M\(GCC\)}
39COMPILER_TYPE:=	gcc
40. elif ${_v:Mclang}
41COMPILER_TYPE:=	clang
42. else
43.error Unable to determine compiler type for ${CC}.  Consider setting COMPILER_TYPE.
44. endif
45.endif
46.if !defined(COMPILER_VERSION)
47COMPILER_VERSION!=echo ${_v:M[1-9].[0-9]*} | awk -F. '{print $$1 * 10000 + $$2 * 100 + $$3;}'
48.endif
49.undef _v
50
51.if ${COMPILER_TYPE} == "clang"
52COMPILER_FEATURES=	c++11
53.else
54COMPILER_FEATURES=
55.endif
56
57.endif	# !target(__<bsd.compiler.mk>__)
58