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Diffstat (limited to 'Src/mkmakemod.sh')
| -rw-r--r-- | Src/mkmakemod.sh | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/Src/mkmakemod.sh b/Src/mkmakemod.sh new file mode 100644 index 000000000..b088929fa --- /dev/null +++ b/Src/mkmakemod.sh @@ -0,0 +1,315 @@ +#!/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 |