NAME

bsd.port.arch.mk — ports tree Makefile fragment, concerned with arch issues

SYNOPSIS

# Set up such as
MULTI_PACKAGES = -main -special
ONLY_FOR_ARCHS-special = i386

.include <bsd.port.arch.mk>

#some more lines such as
.if ${BUILD_PACKAGES:M-special}
CONFIGURE_ARGS += --enable-special
.endif

.include <bsd.port.mk>

DESCRIPTION

bsd.port.arch.mk holds the logic used for arch-dependent builds in the ports tree. It is normally included as part of the larger bsd.port.mk(5), but it is also available separately for ports that require it.

• multi-packages ports that need to remove some subpackages based on pseudo-flavors or architecture constraints.
• ports that need to make explicit tests on arch-dependent constants.

bsd.port.arch.mk assumes the following variables are already defined:

It will set up the following variables for use in the rest of the Makefile:

Most importantly, BUILD_PACKAGES will be correctly set up, taking ONLY_FOR_ARCHS[-<sub>] and NOT_FOR_ARCHS[-<sub>] limitations into account, as well as pseudo-flavors.

Note that thanks to the way make(1) variables are evaluated, a setup such as

ONLY_FOR_ARCHS-foo = ${LP64_ARCHS}
.include <bsd.port.arch.mk>

is perfectly admissible, since ONLY_FOR_ARCHS-foo will be used only after LP64_ARCHS is defined.

Also, you do not need to explicitly include bsd.port.arch.mk just to define

ONLY_FOR_ARCHS = ${LP64_ARCHS}

since bsd.port.mk does define arch constants before evaluating ONLY_FOR_ARCHS. A more detailed description of each variable is available in bsd.port.mk(5).

All the constant values ARCH, ALL_ARCHS, COMPILER_VERSION, GCC3_ARCHS, GCC4_ARCHS, LP64_ARCHS and PROPERTIES are also available from MODULES and from ${.CURDIR}/../Makefile.inc.

SEE ALSO

bsd.port.mk(5)

HISTORY

bsd.port.arch.mk was split from bsd.port.mk(5) in OpenBSD 5.1.