Guido Falsi writes:
> > If I put this clang information into /etc/make.conf will I need to
> > rebuild all of my installed ports?
> >
>
> The ports system is not ready to use clang as the only
> compiler. If you want to add this hack to your make.conf it's
> better if you do it conditionally only for this port like:
>
> .if ${.CURDIR:M*x11/rxvt-unicode*}
> CC= clang
> CXX= clang++
> CPP= clang-cpp
> .endif
>
> Binaries and library generated with gcc and clang should be
> compatible with each other, so, if you just compile a few ports
> with clang, no need to rebuild everything.
There is at least one known exception: LibreOffice.
Some time ago I was given the lines appended to put in
make.conf. While they are probably (and hopefully!) out-of-date, I
have had only the one problem since. (Corrections welcome.)
Robert Huff
#
# PORTS: use clang unless gcc is explicitly required
#
#
# default to using clang for all port builds, with the following
# exceptions
# ports which will only build with the base system GNU compiler (4.2)
#
# the "make index" target also seems to need this, for some reason
.if target(index) | \
${.CURDIR:M*/devel/antlr*} | \
${.CURDIR:M*/devel/google-perftools* } | \
${.CURDIR:M*/graphics/ImageMagick* } | \
${.CURDIR:M*/graphics/opencv*} | \
${.CURDIR:M*/www/libxul*} | \
${.CURDIR:M*/x11/kdelibs4*} | \
${.CURDIR:M*/x11-toolkits/swt-devel*}
USE_GCC?=4.2
.endif
# ports which need *some* version of the GNU compiler (won't build with
# clang or have runtime issues if built with clang)
# use the highest version of gcc we have installed from ports (4.6)
.if ${.CURDIR:M*/accessibility/jovie*} | \
${.CURDIR:M*/accessibility/kdeaccessibility4*} | \
${.CURDIR:M*/audio/grip*} | \
${.CURDIR:M*/audio/mpg123*} | \
${.CURDIR:M*/audio/rosegarden*} | \
${.CURDIR:M*/databases/virtuoso*} | \
${.CURDIR:M*/deskutils/kdepimlibs4*} | \
${.CURDIR:M*/devel/apache-ant*} | \
${.CURDIR:M*/devel/binutils*} | \
${.CURDIR:M*/devel/icu*} | \
${.CURDIR:M*/devel/kdevelop-kde4*} | \
${.CURDIR:M*/devel/kdevplatform*} | \
${.CURDIR:M*/devel/log4j*} | \
${.CURDIR:M*/games/kdegames4*} | \
${.CURDIR:M*/graphics/tonicpoint-viewer*} | \
${.CURDIR:M*/java/* } | \
${.CURDIR:M*/lang/gcc*} | \
${.CURDIR:M*/math/fftw3*} | \
${.CURDIR:M*/multimedia/avidemux2*} | \
${.CURDIR:M*/multimedia/kdemultimedia4*} | \
${.CURDIR:M*/multimedia/vlc*} | \
${.CURDIR:M*/multimedia/xbmc*} | \
${.CURDIR:M*/net/kdenetwork4*} | \
${.CURDIR:M*/net/mpich2*} | \
${.CURDIR:M*/net/opal3*} | \
${.CURDIR:M*/net-p2p/ktorrent*} | \
${.CURDIR:M*/net-p2p/vuze*} | \
${.CURDIR:M*/sysutils/lsof*} | \
${.CURDIR:M*/textproc/docbook-xsl*} | \
${.CURDIR:M*/textproc/fop*} | \
${.CURDIR:M*/www/firefox*} | \
${.CURDIR:M*/x11/kde4-baseapps*} | \
${.CURDIR:M*/x11/kde4-workspace*} | \
${.CURDIR:M*/x11/lxpanel*} | \
${.CURDIR:M*/x11-toolkits/swt*}
USE_GCC?=4.6+
.endif
.if ${.CURDIR:M*/usr/ports/*}
.if !defined(USE_GCC)
.if !defined(CC) || ${CC} == "cc"
CC=clang
.endif
.if !defined(CXX) || ${CXX} == "c++"
CXX=clang++
.endif
.if !defined(CPP) || ${CPP} == "cpp"
CPP=clang-cpp
.endif
.endif
.endif
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