share/mk/bsd.cpu.mk

   1 # $FreeBSD: src/share/mk/bsd.cpu.mk,v 1.2.2.5 2002/07/19 08:09:32 ru Exp $
   2 # $DragonFly: src/share/mk/bsd.cpu.mk,v 1.16 2007/09/26 22:14:17 dillon Exp $
   3
   4 # include compiler-specific bsd.cpu.mk.  Note that CCVER may or may not
   5 # be passed as an environment variable.  If not set we make it consistent
   6 # within make but do not otherwise export it.
   7 #
   8 # _CCVER is used to detect changes to CCVER made in Makefile's after the
   9 # fact.
  10 #
  11 # HOST_CCVER is used by the native system compiler and defaults to CCVER.
  12 # It is not subject to local CCVER overrides in Makefiles and it is inherited
  13 # by all sub-makes.
  14 #
  15 # If the host system does not have the desired compiler for HOST_CCVER
  16 # we back off to something it probably does have.
  17
  18 CCVER ?= gcc41
  19 _CCVER := ${CCVER}
  20 .if exists(/usr/libexec/${_CCVER}/cc)
  21 HOST_CCVER?= ${_CCVER}
  22 .else
  23 HOST_CCVER?= gcc34
  24 .endif
  25
  26 .if ${CCVER} == "gcc34"
  27 .  include <bsd.cpu.gcc34.mk>
  28 .elif ${CCVER} == "gcc41"
  29 .  include <bsd.cpu.gcc41.mk>
  30 .elif defined(CCVER_BSD_CPU_MK)
  31 .  if ${CCVER_BSD_CPU_MK} != ""
  32 .    include "${CCVER_BSD_CPU_MK}"
  33 .  endif
  34 .else
  35 .error "Either set CCVER to a known compiler or specify CCVER_BSD_CPU_MK"
  36 .endif
  37
  38 # /usr/bin/cc depend on the CCVER environment variable, make sure CCVER is
  39 # exported for /usr/bin/cc and friends.  Note that CCVER is unsupported when
  40 # cross compiling from 4.x or older versions of DFly and should not be set
  41 # by the user.
  42 #
  43 .if defined(.DIRECTIVE_MAKEENV)
  44 .makeenv CCVER
  45 .makeenv HOST_CCVER
  46 .endif
  47
  48 # We can reassign _CPUCFLAGS and CFLAGS will evaluate properly to the
  49 # new value, we do not have to add the variable to CFLAGS twice.
  50 #
  51 .if !defined(NO_CPU_CFLAGS) && !defined(_CPUCFLAGS_ASSIGNED)
  52 _CPUCFLAGS_ASSIGNED=TRUE
  53 CFLAGS += ${_CPUCFLAGS}
  54 .endif
  55