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 ${_CCVER} == "gcc34" || ${_CCVER} == "gcc41"
  21 .if exists(/usr/libexec/${_CCVER}/cc)
  22 HOST_CCVER?= ${_CCVER}
  23 .else
  24 HOST_CCVER?= gcc34
  25 .endif
  26 .else
  27 .if exists(/usr/libexec/custom/cc)
  28 HOST_CCVER?= ${CCVER}
  29 .else
  30 HOST_CCVER?= gcc34
  31 .endif
  32 .endif
  33
  34 .if ${CCVER} == "gcc34"
  35 .  include <bsd.cpu.gcc34.mk>
  36 .elif ${CCVER} == "gcc41"
  37 .  include <bsd.cpu.gcc41.mk>
  38 .elif defined(CCVER_BSD_CPU_MK)
  39 .  if ${CCVER_BSD_CPU_MK} != ""
  40 .    include "${CCVER_BSD_CPU_MK}"
  41 .  endif
  42 .else
  43 .  include <bsd.cpu.custom.mk>
  44 .endif
  45
  46 # /usr/bin/cc depend on the CCVER environment variable, make sure CCVER is
  47 # exported for /usr/bin/cc and friends.  Note that CCVER is unsupported when
  48 # cross compiling from 4.x or older versions of DFly and should not be set
  49 # by the user.
  50 #
  51 .if defined(.DIRECTIVE_MAKEENV)
  52 .makeenv CCVER
  53 .makeenv HOST_CCVER
  54 .endif
  55
  56 # We can reassign _CPUCFLAGS and CFLAGS will evaluate properly to the
  57 # new value, we do not have to add the variable to CFLAGS twice.
  58 #
  59 .if !defined(NO_CPU_CFLAGS) && !defined(_CPUCFLAGS_ASSIGNED)
  60 _CPUCFLAGS_ASSIGNED=TRUE
  61 CFLAGS += ${_CPUCFLAGS}
  62 .endif
  63