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freebsd-ports/Mk/bsd.gcc.mk
Gerald Pfeifer af5f25332e When USE_GCC=X.Y+ has been specified, prefer the default version of 
GCC (the one which also USE_FORTRAN=yes chooses) in case we do have
to install GCC in any case.  Only if an acceptable version of GCC
is already present use that one.

This will ease the load on tinderboxes, further the use of current
versions of GCC, and minimize the need to download/carry several
versions of GCC for users of pre-built packages.

PR:		160507
Submitted by:	bf
2011-10-30 01:34:38 +00:00

238 lines
6.8 KiB
Makefile
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#-*- mode: Fundamental; tab-width: 4; -*-
# ex:ts=4
#
# bsd.gcc.mk - Support for smarter USE_GCC usage.
#
# Created by: Edwin Groothuis <edwin@freebsd.org>
#
# For port developers:
# If your port needs a specific (minimum) version of GCC, you can easily
# specify that with a "USE_GCC=" statement. Unless absolutely necessary
# do so by specifying "USE_GCC=X.Y+" which requests at least GCC version
# X.Y. To request a specific version omit the trailing + sign. Use of
# a Fortran compiler is declared by the USE_FORTRAN knob, not USE_GCC.
#
# Examples:
# USE_GCC= 4.2+ # port requires GCC 4.2 or later.
# USE_GCC= 4.5 # port requires GCC 4.5.
#
# If your port needs a Fortran compiler, please specify that with the
# USE_FORTRAN= knob. Here is the list of options for that knob:
#
# USE_FORTRAN= yes # use gfortran46 (lang/gcc46)
# USE_FORTRAN= g77 # use g77-34 (lang/gcc34)
# USE_FORTRAN= ifort # use the Intel compiler (lang/ifc)
#
# Due to object file incompatiblity between Fortran compilers, we strongly
# recommend to use only one of them on any system.
#
# If you are wondering what your port exactly does, use "make test-gcc"
# to see some debugging.
#
# $FreeBSD$
#
GCC_Include_MAINTAINER= gerald@FreeBSD.org
# All GCC versions supported by the ports framework. Keep them in
# ascending order and in sync with the table below.
GCCVERSIONS= 030402 040200 040400 040500 040600 040700
# The first field if the OSVERSION in which it appeared in the base.
# The second field is the OSVERSION in which it disappeared from the base.
# The third field is the version as USE_GCC would use.
GCCVERSION_030402= 502126 700042 3.4
GCCVERSION_040200= 700042 9999999 4.2
GCCVERSION_040400= 0 0 4.4
GCCVERSION_040500= 0 0 4.5
GCCVERSION_040600= 0 0 4.6
GCCVERSION_040700= 0 0 4.7
GCC_DEFAULT_VERSION= 4.6
GCC_DEFAULT_V= ${GCC_DEFAULT_VERSION:S/.//}
#
# No configurable parts below this.
#
# Extract the fields from GCCVERSION_...
.for v in ${GCCVERSIONS}
. for j in ${GCCVERSION_${v}}
. if !defined(_GCCVERSION_${v}_L)
_GCCVERSION_${v}_L= ${j}
. elif !defined(_GCCVERSION_${v}_R)
_GCCVERSION_${v}_R= ${j}
. elif !defined(_GCCVERSION_${v}_V)
_GCCVERSION_${v}_V= ${j}
. endif
. endfor
.endfor
# bsd.gcc.mk can also be used for primarily requesting a Fortran compiler.
# If we are using GCC we still define whatever we'd usually do for C and
# C++ as well.
.if defined (USE_FORTRAN)
# The default case, with a current lang/gcc port.
. if ${USE_FORTRAN} == yes
_USE_GCC:= ${GCC_DEFAULT_VERSION}
FC:= gfortran${GCC_DEFAULT_V}
F77:= gfortran${GCC_DEFAULT_V}
# Intel Fortran compiler from lang/ifc.
. elif ${USE_FORTRAN} == ifort
BUILD_DEPENDS+= ${LOCALBASE}/intel_fc_80/bin/ifort:${PORTSDIR}/lang/ifc
RUN_DEPENDS+= ${LOCALBASE}/intel_fc_80/bin/ifort:${PORTSDIR}/lang/ifc
FC:= ${LOCALBASE}/intel_fc_80/bin/ifort
F77:= ${LOCALBASE}/intel_fc_80/bin/ifort
# g77 from lang/gcc34.
. elif ${USE_FORTRAN} == g77
_USE_GCC:= 3.4
FC:= g77-34
F77:= g77-34
. else
IGNORE= specifies unknown value "${USE_FORTRAN}" for USE_FORTRAN
. endif
CONFIGURE_ENV+= F77="${F77}" FC="${FC}" FFLAGS="${FFLAGS}"
MAKE_ENV+= F77="${F77}" FC="${FC}" FFLAGS="${FFLAGS}"
.endif
.if defined(USE_GCC)
# See if we can use a later version
_USE_GCC:= ${USE_GCC:S/+//}
.if ${USE_GCC} != ${_USE_GCC}
_GCC_ORLATER:= true
.endif
# Check if USE_GCC points to a valid version.
.for v in ${GCCVERSIONS}
. for j in ${GCCVERSION_${v}}
. if ${_USE_GCC}==${j}
_GCCVERSION_OKAY= true;
. endif
. endfor
.endfor
.if !defined(_GCCVERSION_OKAY)
IGNORE= Unknown version of GCC specified (USE_GCC=${USE_GCC})
.endif
#
# Determine current GCCVERSION
#
.for v in ${GCCVERSIONS}
. if exists(${LOCALBASE}/bin/gcc${_GCCVERSION_${v}_V:S/.//})
_GCC_FOUND${v}= port
. endif
. if ${OSVERSION} >= ${_GCCVERSION_${v}_L} && ${OSVERSION} < ${_GCCVERSION_${v}_R}
_GCCVERSION:= ${v}
_GCC_FOUND${v}:= base
. endif
.endfor
.if !defined(_GCCVERSION)
IGNORE= Couldn't find your current GCCVERSION (OSVERSION=${OSVERSION})
.endif
#
# If the GCC package defined in USE_GCC does not exist, but a later
# version is allowed (for example 4.2+), see if there is a later.
# First check if the base installed version is good enough, otherwise
# get the first available version.
#
.if defined(_GCC_ORLATER)
. for v in ${GCCVERSIONS}
. if ${_USE_GCC} == ${_GCCVERSION_${v}_V}
_GCC_MIN1:= true
. endif
. if defined(_GCC_MIN1) && defined(_GCC_FOUND${v}) && ${_GCC_FOUND${v}}=="base" && !defined(_GCC_FOUND)
_GCC_FOUND:= ${_GCCVERSION_${v}_V}
. endif
. endfor
. for v in ${GCCVERSIONS}
. if ${_USE_GCC} == ${_GCCVERSION_${v}_V}
_GCC_MIN2:= true
. endif
. if defined(_GCC_MIN2) && defined(_GCC_FOUND${v}) && !defined(_GCC_FOUND)
_GCC_FOUND:= ${_GCCVERSION_${v}_V}
. endif
. endfor
.endif
.if defined(_GCC_FOUND)
_USE_GCC:= ${_GCC_FOUND}
.elif ${_USE_GCC} < ${GCC_DEFAULT_VERSION}
_USE_GCC:= ${GCC_DEFAULT_VERSION}
.endif
.endif # defined(USE_GCC)
.if defined(_USE_GCC)
# A concrete version has been selected. Determine if the installed OS
# features this version in the base, and if not then set proper ports
# dependencies, CC, CXX, CPP, and flags.
.for v in ${GCCVERSIONS}
. if ${_USE_GCC} == ${_GCCVERSION_${v}_V}
. if ${OSVERSION} < ${_GCCVERSION_${v}_L} || ${OSVERSION} > ${_GCCVERSION_${v}_R}
V:= ${_GCCVERSION_${v}_V:S/.//}
_GCC_BUILD_DEPENDS:= gcc${V}
_GCC_PORT_DEPENDS:= gcc${V}
CC:= gcc${V}
CXX:= g++${V}
CPP:= cpp${V}
. if ${_USE_GCC} != 3.4
CFLAGS+= -Wl,-rpath=${LOCALBASE}/lib/${_GCC_BUILD_DEPENDS}
LDFLAGS+= -Wl,-rpath=${LOCALBASE}/lib/${_GCC_BUILD_DEPENDS}
. if defined (USE_FORTRAN)
. if ${USE_FORTRAN} == yes
FFLAGS+= -Wl,-rpath=${LOCALBASE}/lib/${_GCC_BUILD_DEPENDS}
. endif
. endif
. endif
. endif
. endif
.endfor
.undef V
.if defined(_GCC_BUILD_DEPENDS)
BUILD_DEPENDS+= ${_GCC_PORT_DEPENDS}:${PORTSDIR}/lang/${_GCC_BUILD_DEPENDS}
. if ${_USE_GCC} != 3.4
RUN_DEPENDS+= ${_GCC_PORT_DEPENDS}:${PORTSDIR}/lang/${_GCC_BUILD_DEPENDS}
. if ${_USE_GCC} != 4.2
# Later GCC ports already depend on binutils; make sure whatever we
# build leverages this as well.
USE_BINUTILS= yes
. endif
. endif
.endif
.endif # defined(_USE_GCC)
test-gcc:
@echo USE_GCC=${USE_GCC}
@echo USE_FORTRAN=${USE_FORTRAN}
.if defined(USE_GCC)
.if defined(_GCC_ORLATER)
@echo Port can use later versions.
.else
@echo Port cannot use later versions.
.endif
.for v in ${GCCVERSIONS}
@echo -n "GCC version: ${_GCCVERSION_${v}_V} "
.if defined(_GCC_FOUND${v})
@echo -n "(${_GCC_FOUND${v}}) "
.endif
@echo "- OSVERSION from ${_GCCVERSION_${v}_L} to ${_GCCVERSION_${v}_R}"
# @echo ${v} - ${_GCC_FOUND${v}} - ${_GCCVERSION_${v}_L} to ${_GCCVERSION_${v}_R} - ${_GCCVERSION_${v}_V}
.endfor
@echo Using GCC version ${_USE_GCC}
.endif
@echo CC=${CC} - CXX=${CXX} - CPP=${CPP} - CFLAGS=\"${CFLAGS}\"
@echo F77=${F77} - FC=${FC} - FFLAGS=\"${FFLAGS}\"
@echo LDFLAGS=\"${LDFLAGS}\"
@echo "BUILD_DEPENDS=${BUILD_DEPENDS}"
@echo "RUN_DEPENDS=${RUN_DEPENDS}"
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