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AX_ENABLE_BUILDDIR
[(dirstring-or-command [,Makefile.mk [,-all]])]
if the current configure was run within the srcdir then we move all configure-files into a subdir and let the configure steps continue there. We provide an option --disable-builddir to suppress the move into a separate builddir.
Defaults:
$1 = $host (overridden with $HOST) $2 = Makefile.mk $3 = -all
This macro must be called before AM_INIT_AUTOMAKE.
it creates a default toplevel srcdir Makefile from the information found in the created toplevel builddir Makefile. It just copies the variables and rule-targets, each extended with a default rule-execution that recurses into the build directory of the current "HOST". You can override the auto-dection through `config.guess` and build-time of course, as in
make HOST=i386-mingw-cross
which can of course set at configure time as well using
configure --host=i386-mingw-cross
After the default has been created, additional rules can be appended that will not just recurse into the subdirectories and only ever exist in the srcdir toplevel makefile - these parts are read from the $2 = Makefile.mk file
The automatic rules are usually scanning the toplevel Makefile for lines like '#### $host |$builddir' to recognize the place where to recurse into. Usually, the last one is the only one used. However, almost all targets have an additional "*-all" rule which makes the script to recurse into _all_ variants of the current HOST (!!) setting. The "-all" suffix can be overriden for the macro as well.
a special rule is only given for things like "dist" that will copy the tarball from the builddir to the sourcedir (or $(PUB)) for reason of convenience.
1.4 (last modified: 2003-11-04)
Guido Draheim
AC_DEFUN([AX_ENABLE_BUILDDIR],[AC_REQUIRE([AC_CANONICAL_HOST])[]dnl AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl AS_VAR_PUSHDEF([SUB],[ax_enable_builddir])dnl AS_VAR_PUSHDEF([AUX],[ax_enable_builddir_auxdir])dnl AS_VAR_PUSHDEF([SED],[ax_enable_builddir_sed])dnl SUB="." if test ".$ac_srcdir_defaulted" != ".no" ; then if test ".$srcdir" = ".." ; then AC_PATH_PROG(SED,gsed sed, sed) AC_ARG_ENABLE([builddir], AC_HELP_STRING( [--disable-builddir],[disable automatic build in subdir of sources]) ,[SUB="$withval"], [SUB="."]) test ".$SUB" = ".." && SUB=`$SED -V 2>&1 |$SED -e '/GNU/!d' -e 's/.*/yes/'` test ".$SUB" = "." && SUB="." test ".$SUB" = ".no" && SUB="." if test ".$SUB" != ".." ; then # we know where to go and if test ! -f config.status ; then # srcdir not yet configured test ".$HOST" = "." && HOST="$host" test ".$SUB" = ".yes" && SUB="m4_ifval([$1], [$1],[$HOST])" AS_MKDIR_P([$SUB]) echo __.$SUB.__ > $SUB/conftest.tmp cd $SUB if grep __.$SUB.__ conftest.tmp >/dev/null 2>/dev/null ; then rm conftest.tmp AC_MSG_RESULT([continue configure in default builddir ./$SUB]) else AC_MSG_ERROR([could not change to default builddir ./$SUB]) fi srcdir=`echo "$SUB" | $SED -e 's,^\./,,;s,[[^/]]$,&/,;s,[[^/]]*/,../,g;s,[[/]]$,,;'` AUX="$ac_aux_dir" test ".$ac_aux_dir" != "." && ac_aux_dir="$srcdir/$ac_aux_dir" test ".$ac_install_sh" != "." && ac_install_sh="$srcdir/$ac_install_sh" ac_config_guess="$SHELL $ac_aux_dir/config.guess" ac_config_sub="$SHELL $ac_aux_dir/config.sub" ac_configure="$SHELL $ac_aux_dir/configure" # Cygnus configure test -f $srcdir/config.log && mv $srcdir/config.log . test -f $srcdir/confdefs.h && mv $srcdir/confdefs.h . test -f $srcdir/conftest.log && mv $srcdir/conftest.log . test -f $srcdir/$cache_file && mv $srcdir/$cache_file . fi fi fi fi AS_VAR_POPDEF([SED])dnl AS_VAR_POPDEF([AUX])dnl AS_VAR_POPDEF([SUB])dnl AC_CONFIG_COMMANDS([buildir],[dnl .............. config.status .............. AS_VAR_PUSHDEF([SUB],[ax_enable_builddir])dnl AS_VAR_PUSHDEF([TOP],[top_srcdir])dnl AS_VAR_PUSHDEF([SRC],[ac_top_srcdir])dnl AS_VAR_PUSHDEF([AUX],[ax_enable_builddir_auxdir])dnl AS_VAR_PUSHDEF([SED],[ax_enable_builddir_sed])dnl pushdef([END],[Makefile.mk])dnl pushdef([_ALL],[ifelse([$3],,[-all],[$3])])dnl SUB=`grep "continue configure in default builddir " config.log | $SED -e "s/.*continue configure in default builddir //"` SRC="$ax_enable_builddir_srcdir" if test ".$SUB" = "." ; then if test -f "$TOP/Makefile" ; then AC_MSG_NOTICE([skipping TOP/Makefile - left untouched]) else AC_MSG_NOTICE([skipping TOP/Makefile - not created]) fi else if test -f "$SRC/Makefile" ; then a=`grep "^VERSION " "$SRC/Makefile"` ; b=`grep "^VERSION " Makefile` test "$a" != "$b" && rm "$SRC/Makefile" fi if test -f "$SRC/Makefile" ; then echo "$SRC/Makefile : $SRC/Makefile.in" > $tmp/conftemp.mk echo " []@ echo 'REMOVED,,,' >\$[]@" >> $tmp/conftemp.mk eval "${MAKE-make} -f $tmp/conftemp.mk 2>/dev/null >/dev/null" if grep '^REMOVED,,,' "$SRC/Makefile" >/dev/null then rm $SRC/Makefile ; fi cp $tmp/conftemp.mk $SRC/makefiles.mk~ ## DEBUGGING fi if test ! -f "$SRC/Makefile" ; then AC_MSG_NOTICE([create TOP/Makefile guessed from local Makefile]) x='`' ; cat >$tmp/conftemp.sed <<_EOF /^\$/n x /^\$/bS x /\\\\\$/{H;d;} {H;s/.*//;x;} bM :S x /\\\\\$/{h;d;} {h;s/.*//;x;} :M s/\\(\\n\\) /\\1 /g /^ /d /^[[ ]]*[[\\#]]/d /^VPATH *=/d s/^srcdir *=.*/srcdir = ./ s/^top_srcdir *=.*/top_srcdir = ./ /[[:=]]/!d /^\\./d s/:.*/:/ /:\$/s/ / /g /:\$/s/ \\([[a-z]][[a-z-]]*[[a-z]]\\) / \\1 \\1[]_ALL /g /:\$/s/^\\([[a-z]][[a-z-]]*[[a-z]]\\)\\([[ :]]\\)/\\1 \\1[]_ALL\\2/ /:\$/s/ / /g /^all all[]_ALL[[ :]]/i\\ all-configured : all[]_ALL dnl dist-all exists... and would make for dist-all-all /[]_ALL[]_ALL/d /^.*[[=]]/!a\\ @ HOST="\$(HOST)\" \\\\\\ ; test ".\$\$HOST" = "." && HOST=$x sh $AUX/config.guess $x \\\\\\ ; BUILD=$x grep "^#### \$\$HOST " Makefile | sed -e 's/.*|//' $x \\\\\\ ; use=$x basename "\$\@" _ALL $x; n=$x echo \$\$BUILD | wc -w $x \\\\\\ ; echo "MAKE \$\$HOST : \$\$n * \$\@"; if test "\$\$n" = "0" ; then : \\\\\\ ; BUILD=$x grep "^####.*|" Makefile |tail -1| sed -e 's/.*|//' $x ; fi \\\\\\ ; test ".\$\$BUILD" = "." && BUILD="." \\\\\\ ; test "\$\$use" = "\$\@" && BUILD=$x echo "\$\$BUILD" | tail -1 $x \\\\\\ ; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\ ; (cd "\$\$i" && test ! -f configure && \$(MAKE) \$\$use) ; done dnl special rule add-on: "dist" copies the tarball to $(PUB). (source tree) /dist[]_ALL *:/a\\ @ HOST="\$(HOST)\" \\\\\\ ; test ".\$\$HOST" = "." && HOST=$x sh $AUX/config.guess $x \\\\\\ ; BUILD=$x grep "^#### \$\$HOST " Makefile | sed -e 's/.*|//' $x \\\\\\ ; found=$x echo \$\$BUILD | wc -w $x \\\\\\ ; echo "MAKE \$\$HOST : \$\$found \$(PACKAGE)-\$(VERSION).tar.*" \\\\\\ ; if test "\$\$found" = "0" ; then : \\\\\\ ; BUILD=$x grep "^#### .*|" Makefile |tail -1| sed -e 's/.*|//' $x \\\\\\ ; fi ; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\ ; test -f "\$\$i/\$(PACKAGE)-\$(VERSION).tar.gz" \\\\\\ && mv "\$\$i/\$(PACKAGE)-\$(VERSION).tar.gz" \$(PUB). ; break ; done dnl special rule add-on: "distclean" removes all local builddirs completely /distclean[]_ALL *:/a\\ @ HOST="\$(HOST)\" \\\\\\ ; test ".\$\$HOST" = "." && HOST=$x sh $AUX/config.guess $x \\\\\\ ; BUILD=$x grep "^#### .*| *\\./" Makefile | sed -e 's/.*|//' $x \\\\\\ ; use=$x basename "\$\@" _ALL $x; n=$x echo \$\$BUILD | wc -w $x \\\\\\ ; echo "MAKE \$\$HOST : \$\$n * \$\@ (all local builds)" \\\\\\ ; test ".\$\$BUILD" = "." && BUILD="." \\\\\\ ; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\ ; echo "# rm -r \$\$i"; done ; echo "# (sleep 3)" ; sleep 3 \\\\\\ ; for i in \$\$BUILD ; do test ".\$\$i" = "." && continue \\\\\\ ; echo "rm -r \$\$i"; (rm -r "\$\$i") ; done ; rm Makefile _EOF cp "$tmp/conftemp.sed" "$SRC/makefile.sed~" ## DEBUGGING $SED -f $tmp/conftemp.sed Makefile >$SRC/Makefile if test -f "$SRC/m4_ifval([$2],[$2],[END])" ; then AC_MSG_NOTICE([extend TOP/Makefile with TOP/m4_ifval([$2],[$2],[END])]) cat $SRC/END >>$SRC/Makefile fi ; xxxx="####" echo "$xxxx CONFIGURATIONS FOR TOPLEVEL MAKEFILE: " >>$SRC/Makefile # sanity check if grep '^; echo "MAKE ' $SRC/Makefile >/dev/null ; then AC_MSG_NOTICE([buggy sed found - it deletes tab in "a" text parts]) $SED -e '/^@ HOST=/s/^/ /' -e '/^; /s/^/ /' $SRC/Makefile \ >$SRC/Makefile~ (test -s $SRC/Makefile~ && mv $SRC/Makefile~ $SRC/Makefile) 2>/dev/null fi else xxxx="\\#\\#\\#\\#" # echo "/^$xxxx *$ax_enable_builddir_host /d" >$tmp/conftemp.sed echo "s!^$xxxx [[^|]]* | *$SUB *\$!$xxxx ...... $SUB!" >$tmp/conftemp.sed $SED -f "$tmp/conftemp.sed" "$SRC/Makefile" >$tmp/mkfile.tmp cp "$tmp/conftemp.sed" "$SRC/makefiles.sed~" ## DEBUGGING cp "$tmp/mkfile.tmp" "$SRC/makefiles.out~" ## DEBUGGING if cmp -s "$SRC/Makefile" "$tmp/mkfile.tmp" 2>/dev/null ; then AC_MSG_NOTICE([keeping TOP/Makefile from earlier configure]) rm "$tmp/mkfile.tmp" else AC_MSG_NOTICE([reusing TOP/Makefile from earlier configure]) mv "$tmp/mkfile.tmp" "$SRC/Makefile" fi fi AC_MSG_NOTICE([build in $SUB (HOST=$ax_enable_builddir_host)]) xxxx="####" echo "$xxxx" "$ax_enable_builddir_host" "|$SUB" >>$SRC/Makefile fi popdef([END])dnl AS_VAR_POPDEF([SED])dnl AS_VAR_POPDEF([AUX])dnl AS_VAR_POPDEF([SRC])dnl AS_VAR_POPDEF([TOP])dnl AS_VAR_POPDEF([SUB])dnl ],[dnl ax_enable_builddir_srcdir="$srcdir" # $srcdir ax_enable_builddir_host="$HOST" # $HOST / $host ax_enable_builddir_version="$VERSION" # $VERSION ax_enable_builddir_package="$PACKAGE" # $PACKAGE ax_enable_builddir_auxdir="$ax_enable_builddir_auxdir" # $AUX ax_enable_builddir_sed="$ax_enable_builddir_sed" # $SED ax_enable_builddir="$ax_enable_builddir" # $SUB ])dnl ])