From: Guido Draheim Date: Tue, 1 Aug 2006 03:22:56 +0000 (+0000) Subject: ax_enable_builddir_uname.m4 X-Git-Tag: v0.13.48~29 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cc461305b4895a009dc7ee7edf3a6692ec46fe66;p=zziplib ax_enable_builddir_uname.m4 (ax_enable_builddir_uname.m4) --- diff --git a/m4/ax_enable_builddir_uname.m4 b/m4/ax_enable_builddir_uname.m4 new file mode 100644 index 0000000..9dfb015 --- /dev/null +++ b/m4/ax_enable_builddir_uname.m4 @@ -0,0 +1,192 @@ +dnl @synopsis AX_ENABLE_BUILDDIR_UNAME [(dirstring-or-command [,Makefile.mk])] +dnl +dnl if the current configure was run within the srcdir then we move all +dnl configure-files into a subdir and let the configure steps continue +dnl there. We provide an option --disable-builddir to suppress the move +dnl into a separate builddir. +dnl +dnl Defaults: +dnl +dnl $1 = $build (overridden with `uname -i`.`uname -n`) +dnl $2 = Makefile.mk +dnl $3 = -all +dnl +dnl This macro must be called before AM_INIT_AUTOMAKE. +dnl +dnl it creates a default toplevel srcdir Makefile from the information +dnl found in the created toplevel builddir Makefile. It just copies the +dnl variables and rule-targets, each extended with a default +dnl rule-execution that recurses into the build directory of the +dnl current "BUILD". You can override the auto-dection through +dnl `uname -i`.`uname -n` at build-time of course, as in +dnl +dnl make BUILD=i386-mingw-cross +dnl +dnl After the default has been created, additional rules can be +dnl appended that will not just recurse into the subdirectories and +dnl only ever exist in the srcdir toplevel makefile - these parts are +dnl read from the $2 = Makefile.mk file +dnl +dnl The automatic rules are usually scanning the toplevel Makefile for +dnl lines like '#### $build |$builddir' to recognize the place where to +dnl recurse into. Usually, the last one is the only one used. However, +dnl almost all targets have an additional "*-all" rule which makes the +dnl script to recurse into _all_ variants of the current BUILD (!!) +dnl setting. The "-all" suffix can be overriden for the macro as well. +dnl +dnl a special rule is only given for things like "dist" that will copy +dnl the tarball from the builddir to the sourcedir (or $(PUB)) for +dnl reason of convenience. +dnl +dnl @category Misc +dnl @author Guido U. Draheim +dnl @version 2005-12-03 +dnl @license GPLWithACException + +AC_DEFUN([AX_ENABLE_BUILDDIR_UNAME],[AC_REQUIRE([AC_CANONICAL_HOST])[]dnl +AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl +AS_VAR_PUSHDEF([SUB],[ax_enable_builddir])dnl +AS_VAR_PUSHDEF([SED],[ax_enable_builddir_sed])dnl +SUB="." +AC_ARG_ENABLE([builddir], AC_HELP_STRING( + [--disable-builddir],[disable automatic build in subdir of sources]) + ,[SUB="$enableval"], [SUB="yes"]) +if test ".$ac_srcdir_defaulted" != ".no" ; then +if test ".$srcdir" = ".." ; then + if test -f config.status ; then + AC_MSG_NOTICE(toplevel srcdir already configured... skipping subdir build) + else + test ".$SUB" = "." && SUB="." + test ".$SUB" = ".no" && SUB="." + test ".$BUILD" = "." && BUILD=`uname -i`.`uname -n` + test ".$SUB" = ".yes" && SUB="m4_ifval([$1], [$1],[$BUILD])" + if test ".$SUB" != ".." ; then # we know where to go and + AS_MKDIR_P([$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,[[/]]$,,;'` + # going to restart from subdirectory location + 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 . + AC_MSG_RESULT(....exec $SHELL $srcdir/[$]0 "--srcdir=$srcdir" "--enable-builddir=$SUB" ${1+"[$]@"}) + case "[$]0" in # restart + [/\\]) exec $SHELL [$]0 "--srcdir=$srcdir" "--enable-builddir=$SUB" ${1+"[$]@"} ;; + *) exec $SHELL $srcdir/[$]0 "--srcdir=$srcdir" "--enable-builddir=$SUB" ${1+"[$]@"} ;; + esac + fi + fi +fi fi +dnl ac_path_prog uses "set dummy" to override $@ which would defeat the "exec" +AC_PATH_PROG(SED,gsed sed, sed) +AS_VAR_POPDEF([SED])dnl +AS_VAR_POPDEF([SUB])dnl +AC_CONFIG_COMMANDS([buildir],[dnl .............. config.status .............. +AS_VAR_PUSHDEF([SUB],[ax_enable_builddir])dnl +AS_VAR_PUSHDEF([TOP],[top_srcdir])dnl +AS_VAR_PUSHDEF([SRC],[ac_top_srcdir])dnl +AS_VAR_PUSHDEF([SED],[ax_enable_builddir_sed])dnl +pushdef([END],[Makefile.mk])dnl + SRC="$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 >$tmp/conftemp.sed <<_EOF +/^\$/n +x +/^\$/bS +x +/\\\\\$/{H;d;} +{H;s/.*//;x;} +bM +:S +x +/\\\\\$/{h;d;} +{h;s/.*//;x;} +:M +s/\\(\\n\\) /\\1 /g +/^ /d +/^[[ ]]*[[\\#]]/d +/^VPATH *=/d +s/^srcdir *=.*/srcdir = ./ +s/^top_srcdir *=.*/top_srcdir = ./ +/[[:=]]/!d +/^\\./d +s/:.*/:/ +/:\$/s/ / /g +/:\$/s/ / /g +/^.*[[=]]/!s%\$% ; (cd \`uname -i\`.\`uname -n\` \\&\\& test ! -f configure \\&\\& \$(MAKE) "\$\@") || exit% +_EOF + cp "$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([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" # $PACKAGE +ax_enable_builddir_sed="$ax_enable_builddir_sed" # $SED +ax_enable_builddir="$ax_enable_builddir" # $SUB +])dnl +])