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334 lines
11 KiB
Plaintext
334 lines
11 KiB
Plaintext
#=========================================================================
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# Local Autoconf Macros
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#=========================================================================
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# This file contains the macros for the Modular C++ Build System and
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# additional autoconf macros which developers can use in their
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# configure.ac scripts. Please read the documentation in
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# 'mcppbs-doc.txt' for more details on how the Modular C++ Build System
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# works. The documenation for each macro should include information
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# about the author, date, and copyright.
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#-------------------------------------------------------------------------
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# MCPPBS_PROG_INSTALL
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#-------------------------------------------------------------------------
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# This macro will add an --enable-stow command line option to the
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# configure script. When enabled, this macro will first check to see if
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# the stow program is available and if so it will set the $stow shell
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# variable to the binary name and the $enable_stow shell variable to
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# "yes". These variables can be used in a makefile to conditionally use
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# stow for installation.
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#
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# This macro uses two environment variables to help setup default stow
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# locations. The $STOW_PREFIX is used for stowing native built packages.
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# The packages are staged in $STOW_PREFIX/pkgs and then symlinks are
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# created from within $STOW_PREFIX into the pkgs subdirectory. If you
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# only do native builds then this is all you need to set. If you don't
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# set $STOW_PREFIX then the default is just the normal default prefix
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# which is almost always /usr/local.
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#
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# For non-native builds we probably want to install the packages in a
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# different location which includes the host architecture name as part
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# of the prefix. For these kind of builds, we can specify the $STOW_ROOT
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# environment variable and the effective prefix will be
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# $STOW_ROOT/${host_alias} where ${host_alias} is specified on the
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# configure command line with "--host".
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#
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# Here is an example setup:
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#
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# STOW_ROOT="$HOME/install"
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# STOW_ARCH="i386-macosx10.4"
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# STOW_PREFIX="${STOW_ROOT}/${STOW_ARCH}"
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#
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AC_DEFUN([MCPPBS_PROG_INSTALL],
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[
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# Configure command line option
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AC_ARG_ENABLE(stow,
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AS_HELP_STRING(--enable-stow,[Enable stow-based install]),
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[enable_stow="yes"],[enable_stow="no"])
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AC_SUBST([enable_stow])
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# Environment variables
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AC_ARG_VAR([STOW_ROOT], [Root for non-native stow-based installs])
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AC_ARG_VAR([STOW_PREFIX], [Prefix for stow-based installs])
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# Check for install script
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AC_PROG_INSTALL
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# Deterimine if native build and set prefix appropriately
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AS_IF([ test ${enable_stow} = "yes" ],
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[
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AC_CHECK_PROGS([stow],[stow],[no])
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AS_IF([ test ${stow} = "no" ],
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[
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AC_MSG_ERROR([Cannot use --enable-stow since stow is not available])
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])
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# Check if native or non-native build
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AS_IF([ test "${build}" = "${host}" ],
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[
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# build == host so this is a native build. Make sure --prefix not
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# set and $STOW_PREFIX is set, then set prefix=$STOW_PREFIX.
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AS_IF([ test "${prefix}" = "NONE" && test -n "${STOW_PREFIX}" ],
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[
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prefix="${STOW_PREFIX}"
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AC_MSG_NOTICE([Using \$STOW_PREFIX from environment])
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AC_MSG_NOTICE([prefix=${prefix}])
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])
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],[
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# build != host so this is a non-native build. Make sure --prefix
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# not set and $STOW_ROOT is set, then set
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# prefix=$STOW_ROOT/${host_alias}.
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AS_IF([ test "${prefix}" = "NONE" && test -n "${STOW_ROOT}" ],
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[
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prefix="${STOW_ROOT}/${host_alias}"
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AC_MSG_NOTICE([Using \$STOW_ROOT from environment])
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AC_MSG_NOTICE([prefix=${prefix}])
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])
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])
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])
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])
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#-------------------------------------------------------------------------
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# MCPPBS_SUBPROJECTS([ sproj1, sproj2, ... ])
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#-------------------------------------------------------------------------
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# The developer should call this macro with a list of the subprojects
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# which make up this project. One should order the list such that any
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# given subproject only depends on subprojects listed before it. The
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# subproject names can also include an * suffix which indicates that
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# this is an optional subproject. Optional subprojects are only included
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# as part of the project build if enabled on the configure command line
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# with a --enable-<subproject> flag. The user can also specify that all
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# optional subprojects should be included in the build with the
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# --enable-optional-subprojects flag.
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#
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# Subproject names can also include a ** suffix which indicates that it
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# is an optional subproject, but there is a group with the same name.
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# Thus the --enable-<sproj> command line option will enable not just the
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# subproject sproj but all of the subprojects which are in the group.
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# There is no error checking to make sure that if you use the ** suffix
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# you actually define a group so be careful.
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#
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# Both required and optional subprojects should have a 'subproject.ac'
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# file. The script's filename should be the abbreivated subproject name
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# (assuming the subproject name is sproj then we would use 'sproj.ac')
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# The MCPPBS_SUBPROJECTS macro includes the 'subproject.ac' files for
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# enabled subprojects. Whitespace and newlines are allowed within the
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# list.
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#
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# Author : Christopher Batten
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# Date : September 10, 2008
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AC_DEFUN([MCPPBS_SUBPROJECTS],
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[
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# Add command line argument to enable all optional subprojects
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AC_ARG_ENABLE(optional-subprojects,
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AS_HELP_STRING([--enable-optional-subprojects],
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[Enable all optional subprojects]))
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# Loop through the subprojects given in the macro argument
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m4_foreach([MCPPBS_SPROJ],[$1],
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[
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# Determine if this is a required or an optional subproject
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m4_define([MCPPBS_IS_REQ],
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m4_bmatch(MCPPBS_SPROJ,[\*+],[false],[true]))
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# Determine if there is a group with the same name
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m4_define([MCPPBS_IS_GROUP],
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m4_bmatch(MCPPBS_SPROJ,[\*\*],[true],[false]))
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# Create variations of the subproject name suitable for use as a CPP
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# enabled define, a shell enabled variable, and a shell function
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m4_define([MCPPBS_SPROJ_NORM],
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m4_normalize(m4_bpatsubsts(MCPPBS_SPROJ,[*],[])))
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m4_define([MCPPBS_SPROJ_DEFINE],
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m4_toupper(m4_bpatsubst(MCPPBS_SPROJ_NORM[]_ENABLED,[-],[_])))
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m4_define([MCPPBS_SPROJ_FUNC],
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m4_bpatsubst(_mpbp_[]MCPPBS_SPROJ_NORM[]_configure,[-],[_]))
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m4_define([MCPPBS_SPROJ_UNDERSCORES],
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m4_bpatsubsts(MCPPBS_SPROJ,[-],[_]))
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m4_define([MCPPBS_SPROJ_SHVAR],
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m4_bpatsubst(enable_[]MCPPBS_SPROJ_NORM[]_sproj,[-],[_]))
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# Add subproject to our running list
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subprojects="$subprojects MCPPBS_SPROJ_NORM"
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# Process the subproject appropriately. If enabled add it to the
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# $enabled_subprojects running shell variable, set a
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# SUBPROJECT_ENABLED C define, and include the appropriate
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# 'subproject.ac'.
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m4_if(MCPPBS_IS_REQ,[true],
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[
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AC_MSG_NOTICE([configuring default subproject : MCPPBS_SPROJ_NORM])
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AC_CONFIG_FILES(MCPPBS_SPROJ_NORM[].mk:MCPPBS_SPROJ_NORM[]/MCPPBS_SPROJ_NORM[].mk.in)
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MCPPBS_SPROJ_SHVAR="yes"
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subprojects_enabled="$subprojects_enabled MCPPBS_SPROJ_NORM"
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AC_DEFINE(MCPPBS_SPROJ_DEFINE,,
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[Define if subproject MCPPBS_SPROJ_NORM is enabled])
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m4_include(MCPPBS_SPROJ_NORM[]/MCPPBS_SPROJ_NORM[].ac)
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],[
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# For optional subprojects we capture the 'subproject.ac' as a
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# shell function so that in the MCPPBS_GROUP macro we can just
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# call this shell function instead of reading in 'subproject.ac'
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# again.
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MCPPBS_SPROJ_FUNC ()
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{
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AC_MSG_NOTICE([configuring optional subproject : MCPPBS_SPROJ_NORM])
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AC_CONFIG_FILES(MCPPBS_SPROJ_NORM[].mk:MCPPBS_SPROJ_NORM[]/MCPPBS_SPROJ_NORM[].mk.in)
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MCPPBS_SPROJ_SHVAR="yes"
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subprojects_enabled="$subprojects_enabled MCPPBS_SPROJ_NORM"
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AC_DEFINE(MCPPBS_SPROJ_DEFINE,,
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[Define if subproject MCPPBS_SPROJ_NORM is enabled])
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m4_include(MCPPBS_SPROJ_NORM[]/MCPPBS_SPROJ_NORM[].ac)
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};
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# Optional subprojects add --enable-subproject command line
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# options, _if_ the subproject name is not also a group name.
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m4_if(MCPPBS_IS_GROUP,[false],
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[
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AC_ARG_ENABLE(MCPPBS_SPROJ_NORM,
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AS_HELP_STRING(--enable-MCPPBS_SPROJ_NORM,
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[Subproject MCPPBS_SPROJ_NORM]),
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[MCPPBS_SPROJ_SHVAR="yes"],[MCPPBS_SPROJ_SHVAR="no"])
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AS_IF([test "$MCPPBS_SPROJ_SHVAR" = "yes"],
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[
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eval "MCPPBS_SPROJ_FUNC"
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],[
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AC_MSG_NOTICE([processing optional subproject : MCPPBS_SPROJ_NORM])
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])
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],[
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# If the subproject name is also a group name then we need to
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# make sure that we set the shell variable for that subproject to
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# no so that the group code knows we haven't run it yet.
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AC_MSG_NOTICE([processing optional subproject : MCPPBS_SPROJ_NORM])
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MCPPBS_SPROJ_SHVAR="no"
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])
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# Always execute the subproject configure code if we are enabling
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# all subprojects.
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AS_IF([ test "$enable_optional_subprojects" = "yes" \
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&& test "$MCPPBS_SPROJ_SHVAR" = "no" ],
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[
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eval "MCPPBS_SPROJ_FUNC"
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])
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])
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])
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# Output make variables
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AC_SUBST([subprojects])
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AC_SUBST([subprojects_enabled])
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])
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#-------------------------------------------------------------------------
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# MCPPBS_GROUP( [group-name], [ sproj1, sproj2, ... ] )
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#-------------------------------------------------------------------------
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# This macro creates a subproject group with the given group-name. When
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# a user specifies --enable-<group-name> the listed subprojects will be
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# enabled. Groups can have the same name as a subproject and in that
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# case whenever a user specifies --enable-<subproject> the subprojects
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# listed in the corresponding group will also be enabled. Groups are
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# useful for specifying related subprojects which are usually enabled
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# together, as well as for specifying that a specific optional
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# subproject has dependencies on other optional subprojects.
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#
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# Author : Christopher Batten
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# Date : September 10, 2008
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AC_DEFUN([MCPPBS_GROUP],
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[
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m4_define([MCPPBS_GROUP_NORM],
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m4_normalize([$1]))
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m4_define([MCPPBS_GROUP_SHVAR],
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m4_bpatsubst(enable_[]MCPPBS_GROUP_NORM[]_group,[-],[_]))
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AC_ARG_ENABLE(MCPPBS_GROUP_NORM,
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AS_HELP_STRING(--enable-MCPPBS_GROUP_NORM,
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[Group MCPPBS_GROUP_NORM: $2]),
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[MCPPBS_GROUP_SHVAR="yes"],[MCPPBS_GROUP_SHVAR="no"])
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AS_IF([test "$MCPPBS_GROUP_SHVAR" = "yes" ],
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[
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AC_MSG_NOTICE([configuring optional group : MCPPBS_GROUP_NORM])
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])
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m4_foreach([MCPPBS_SPROJ],[$2],
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[
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m4_define([MCPPBS_SPROJ_NORM],
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m4_normalize(MCPPBS_SPROJ))
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m4_define([MCPPBS_SPROJ_SHVAR],
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m4_bpatsubst(enable_[]MCPPBS_SPROJ_NORM[]_sproj,[-],[_]))
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m4_define([MCPPBS_SPROJ_FUNC],
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m4_bpatsubst(_mpbp_[]MCPPBS_SPROJ_NORM[]_configure,[-],[_]))
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AS_IF([ test "$MCPPBS_GROUP_SHVAR" = "yes" \
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&& test "$MCPPBS_SPROJ_SHVAR" = "no" ],
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[
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eval "MCPPBS_SPROJ_FUNC"
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])
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])
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])
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#-------------------------------------------------------------------------
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# AX_DEFAULT_CONFIGURE_ARG
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#-------------------------------------------------------------------------
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# Simple little macro which adds a configure commane line option to an
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# internal autoconf shell variable. Not sure how safe this is, but it
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# seems to work fine.
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#
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# Author : Christopher Batten
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# Date : August 20, 2009
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AC_DEFUN([AX_DEFAULT_CONFIGURE_ARG],
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[
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AC_MSG_NOTICE([adding default configure arg: $1])
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ac_configure_args="$1 ${ac_configure_args}"
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])
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