Initial revision

1 files changed, 315 insertions, 0 deletions

diff --git a/Src/mkmakemod.sh b/Src/mkmakemod.sh
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+#!/bin/sh
+#
+# mkmakemod.sh: generate Makefile.in files for module building
+#
+# Options:
+#   -m = file is already generated; only build the second stage
+#   -i = do not build second stage
+#
+# Args:
+#   $1 = subdirectory to look in, relative to $top_srcdir
+#   $2 = final output filename, within the $1 directory
+#
+# This script must be run from the top-level build directory, and $top_srcdir
+# must be set correctly in the environment.
+#
+# This looks in $1, and uses all the *.mdd files there.  Each .mdd file
+# defines one module.  The .mdd file is actually a shell script, which will
+# be sourced.  It may define the following shell variables:
+#
+#   moddeps       modules on which this module depends (default none)
+#   nozshdep      non-empty indicates no dependence on the `zsh' pseudo-module
+#   alwayslink    if non-empty, always link the module into the executable
+#   autobins      builtins defined by the module, for autoloading
+#   objects       .o files making up this module (*must* be defined)
+#   proto         .pro files for this module (default generated from $objects)
+#   headers       extra headers for this module (default none)
+#   hdrdeps       extra headers on which the .mdh depends (default none)
+#   otherincs     extra headers that are included indirectly (default none)
+#
+# The .mdd file may also include a Makefile.in fragment between lines
+# `:<<\Make' and `Make' -- this will be copied into Makemod.in.
+#
+# The resulting Makemod.in knows how to build each module that is defined.
+# For each module in also knows how to build a .mdh file.  Each source file
+# should #include the .mdh file for the module it is a part of.  The .mdh
+# file #includes the .mdh files for any module dependencies, then each of
+# $headers, and then each of $proto (for global declarations).  It will
+# be recreated if any of the dependency .mdh files changes, or if any of
+# $headers or $hdrdeps changes.  When anything depends on it, all of $proto
+# and $otherincs will be made up to date, but the .mdh file won't actually
+# be rebuilt if those files change.
+#
+# The order of sections of the output file is thus:
+#   simple generated macros
+#   macros generated from *.mdd
+#   included Makemod.in.in
+#   rules generated from *.mdd
+# The order dependencies are basically that the generated macros are required
+# in Makemod.in.in, but some of the macros that it creates are needed in the
+# later rules.
+#
+
+# sed script to normalise a pathname
+sed_normalise='
+    s,^,/,
+    s,$,/,
+    :1
+    s,/\./,/,
+    t1
+    :2
+    s,/[^/.][^/]*/\.\./,/,
+    s,/\.[^/.][^/]*/\.\./,/,
+    s,/\.\.[^/][^/]*/\.\./,/,
+    t2
+    s,^/$,.,
+    s,^/,,
+    s,\(.\)/$,\1,
+'
+
+# decide which stages to process
+first_stage=true
+second_stage=true
+if test ."$1" = .-m; then
+    shift
+    first_stage=false
+elif test ."$1" = .-i; then
+    shift
+    second_stage=false
+fi
+
+top_srcdir=`echo $top_srcdir | sed "$sed_normalise"`
+the_subdir=$1
+the_makefile=$2
+
+if $first_stage; then
+
+    trap "rm -f $the_subdir/${the_makefile}.in" 1 2 15
+    echo "creating $the_subdir/${the_makefile}.in"
+    exec 3>&1 >$the_subdir/${the_makefile}.in
+    echo "##### ${the_makefile}.in generated automatically by mkmakemod.sh"
+    echo "##### DO NOT EDIT!"
+    echo
+    echo "##### ===== DEFINITIONS ===== #####"
+    echo
+    echo "makefile = ${the_makefile}"
+    echo "dir_top = "`echo $the_subdir | sed 's,[^/][^/]*,..,g'`
+    echo "subdir = $the_subdir"
+    echo
+
+    . Src/modules.index
+    bin_mods=" zsh "`sed 's/^/ /;s/$/ /' Src/modules-bltin`
+    if grep '%@D@%D%' config.status >/dev/null; then
+	is_dynamic=true
+    else
+	is_dynamic=false
+    fi
+
+    here_modules=
+    all_subdirs=
+    all_modobjs=
+    all_modules=
+    all_mdds=
+    all_mdhs=
+    all_proto=
+    lastsub=//
+    for module in $module_list; do
+	eval "loc=\$loc_$module"
+	case $loc in
+	    $the_subdir)
+		here_modules="$here_modules $module"
+		build=$is_dynamic
+		case $is_dynamic@$bin_mods in
+		    *" $module "*)
+			build=true
+			all_modobjs="$all_modobjs modobjs.${module}" ;;
+		    true@*)
+			all_modules="$all_modules ${module}.\$(DL_EXT)" ;;
+		esac
+		all_mdds="$all_mdds ${module}.mdd"
+		$build && all_mdhs="$all_mdhs ${module}.mdh"
+		$build && all_proto="$all_proto proto.${module}"
+		;;
+	    $lastsub | $lastsub/*) ;;
+	    $the_subdir/*)
+		all_subdirs="$all_subdirs $loc"
+		lastsub=$loc
+		;;
+	esac
+    done
+    all_subdirs=`echo "$all_subdirs" | sed "s' $the_subdir/' 'g"`
+    echo "MODOBJS =$all_modobjs"
+    echo "MODULES =$all_modules"
+    echo "MDDS    =$all_mdds"
+    echo "MDHS    =$all_mdhs"
+    echo "PROTOS  =$all_proto"
+    echo "SUBDIRS =$all_subdirs"
+    echo
+
+    echo "##### ===== INCLUDING Makemod.in.in ===== #####"
+    echo
+    cat $top_srcdir/Src/Makemod.in.in
+    echo
+
+    case $the_subdir in
+	Src) modobjs_sed= ;;
+	Src/*) modobjs_sed="| sed 's\" \" "`echo $the_subdir | sed 's,^Src/,,'`"/\"g' " ;;
+	*) modobjs_sed="| sed 's\" \" ../$the_subdir/\"g' " ;;
+    esac
+
+    other_mdhs=
+    remote_mdhs=
+    for module in $here_modules; do
+
+	unset moddeps nozshdep alwayslink
+	unset autobins
+	unset objects proto headers hdrdeps otherincs
+	. $top_srcdir/$the_subdir/${module}.mdd
+	test -n "${moddeps+set}" || moddeps=
+	test -n "$nozshdep" || moddeps="$moddeps zsh"
+	test -n "${proto+set}" ||
+	    proto=`echo $objects '' | sed 's,\.o ,.pro ,g'`
+
+	dobjects=`echo $objects '' | sed 's,\.o ,..o ,g'`
+	modhdeps=
+	for dep in $moddeps; do
+	    eval "loc=\$loc_$dep"
+	    case $the_subdir in
+		$loc)
+		    mdh="${dep}.mdh"
+		    ;;
+		$loc/*)
+		    mdh="\$(dir_top)/$loc/${dep}.mdh"
+		    case "$other_mdhs " in
+			*" $mdh "*) ;;
+			*) other_mdhs="$other_mdhs $mdh" ;;
+		    esac
+		    ;;
+		*)
+		    mdh="\$(dir_top)/$loc/${dep}.mdh"
+		    case "$remote_mdhs " in
+			*" $mdh "*) ;;
+			*) remote_mdhs="$remote_mdhs $mdh" ;;
+		    esac
+		    ;;
+	    esac
+	    modhdeps="$modhdeps $mdh"
+	done
+
+	echo "##### ===== DEPENDENCIES GENERATED FROM ${module}.mdd ===== #####"
+	echo
+	echo "MODOBJS_${module} = $objects"
+	echo "MODDOBJS_${module} = $dobjects"
+	echo "PROTO_${module} = $proto"
+	echo "INCS_${module} = \$(PROTO_${module}) $otherincs"
+	echo
+	echo "proto.${module}: \$(PROTO_${module})"
+	echo "\$(PROTO_${module}): \$(PROTODEPS)"
+	echo
+	echo "modobjs.${module}: \$(MODOBJS_${module})"
+	echo "	echo '' \$(MODOBJS_${module}) $modobjs_sed>> \$(dir_src)/stamp-modobjs.tmp"
+	echo
+	if test -z "$alwayslink"; then
+	    echo "${module}.\$(DL_EXT): \$(MODDOBJS_${module})"
+	    echo '	rm -f $@'
+	    echo "	\$(DLLINK) \$(MODDOBJS_${module}) \$(LIBS)"
+	    echo
+	fi
+	echo "${module}.mdhi: ${module}.mdhs \$(INCS_${module})"
+	echo "	@test -f \$@ || echo 'do not delete this file' > \$@"
+	echo
+	echo "${module}.mdhs: ${module}.mdd"
+	echo "	@\$(MAKE) -f \$(makefile) \$(MAKEDEFS) ${module}.mdh.tmp"
+	echo "	@if cmp -s ${module}.mdh ${module}.mdh.tmp; then \\"
+	echo "	    rm -f ${module}.mdh.tmp; \\"
+	echo "	    echo \"\\\`${module}.mdh' is up to date.\"; \\"
+	echo "	else \\"
+	echo "	    mv -f ${module}.mdh.tmp ${module}.mdh; \\"
+	echo "	    echo \"Updated \\\`${module}.mdh'.\"; \\"
+	echo "	fi"
+	echo "	echo 'timestamp for ${module}.mdh against ${module}.mdd' > \$@"
+	echo
+	echo "${module}.mdh: ${modhdeps} ${headers} ${hdrdeps} ${module}.mdhi"
+	echo "	@\$(MAKE) -f \$(makefile) \$(MAKEDEFS) ${module}.mdh.tmp"
+	echo "	@mv -f ${module}.mdh.tmp ${module}.mdh"
+	echo "	@echo \"Updated \\\`${module}.mdh'.\""
+	echo
+	echo "${module}.mdh.tmp:"
+	echo "	@( \\"
+	echo "	    echo '#ifndef have_${module}_module'; \\"
+	echo "	    echo '#define have_${module}_module'; \\"
+	echo "	    echo; \\"
+	if test -n "$moddeps"; then
+	    echo "	    echo '/* Module dependencies */'; \\"
+	    echo "	    for mod in $modhdeps; do \\"
+	    echo "		echo '# define USING_MODULE'; \\"
+	    echo "		echo '# include \"'\$\$mod'\"'; \\"
+	    echo "	    done; \\"
+	    echo "	    echo '# undef USING_MODULE'; \\"
+	    echo "	    echo; \\"
+	fi
+	if test -n "$headers"; then
+	    echo "	    echo '/* Extra headers for this module */'; \\"
+	    echo "	    for hdr in $headers; do \\"
+	    echo "		if test -f \$\$hdr; then \\"
+	    echo "		    echo '# include \"'\$\$hdr'\"'; \\"
+	    echo "		else \\"
+	    echo "		    echo '# include \"\$(sdir)/'\$\$hdr'\"'; \\"
+	    echo "		fi; \\"
+	    echo "	    done; \\"
+	    echo "	    echo; \\"
+	fi
+	if test -n "$proto"; then
+	    echo "	    echo '# define GLOBAL_PROTOTYPES'; \\"
+	    echo "	    for pro in \$(PROTO_${module}); do \\"
+	    echo "		echo '# include \"'\$\$pro'\"'; \\"
+	    echo "	    done; \\"
+	    echo "	    echo '# undef GLOBAL_PROTOTYPES'; \\"
+	    echo "	    echo; \\"
+	fi
+	echo "	    echo '#endif /* !have_${module}_module */'; \\"
+	echo "	) > \$@"
+	echo
+	echo "\$(MODOBJS_${module}) \$(MODDOBJS_${module}): ${module}.mdh"
+	sed -e '/^ *: *<< *\\Make *$/,/^Make$/!d' \
+	    -e 's/^ *: *<< *\\Make *$//; /^Make$/d' \
+	    < $top_srcdir/$the_subdir/${module}.mdd
+	echo
+
+    done
+
+    if test -n "$remote_mdhs$other_mdhs"; then
+	echo "##### ===== DEPENDENCIES FOR REMOTE MODULES ===== #####"
+	echo
+	for mdh in $remote_mdhs; do
+	    echo "$mdh: FORCE"
+	    echo "	@cd @%@ && \$(MAKE) \$(MAKEDEFS) @%@$mdh"
+	    echo
+	done | sed 's,^\(.*\)@%@\(.*\)@%@\(.*\)/\([^/]*\)$,\1\3\2\4,'
+	if test -n "$other_mdhs"; then
+	    echo "${other_mdhs}:"
+	    echo "	false # should only happen with make -n"
+	    echo
+	fi
+    fi
+
+    echo "##### End of ${the_makefile}.in"
+
+    exec >&3 3>&-
+
+fi
+
+if $second_stage; then
+
+    trap "rm -f $the_subdir/${the_makefile}" 1 2 15
+
+    # The standard config.status requires the pathname for the .in file to
+    # be relative to the top of the source tree.  As we have it in the build
+    # tree, this is a problem.  zsh's configure script edits config.status,
+    # adding the feature that an input filename starting with "!" has the
+    # "!" removed and is not mangled further.
+    CONFIG_FILES=$the_subdir/${the_makefile}:\!$the_subdir/${the_makefile}.in CONFIG_HEADERS= ./config.status
+
+fi
+
+exit 0