leim/Makefile.in: use GNU Make features to simplify and parallelize.

* leim/Makefile.in (CHINESE_TIT, TIT_SOURCES, MISC_SOURCES, changed.tit)
(changed.misc): Remove.
(${leimdir}/quail, ${leimdir}/ja-dic): Create using order-only prereq.
(misc_convert): New.
(${leimdir}/quail/%.el, ${leimdir}/quail/CT%.el)
(${leimdir}/quail/PY.el, ${leimdir}/quail/ZIRANMA.el)
(${leimdir}/quail/tsang-%.el, ${leimdir}/quail/quick-%.el): Use pattern rules.
(${leimdir}/leim-list.el, ${leimdir}/ja-dic/ja-dic.el):
Use automatic variables.
(bootstrap-clean): No changed.* files to delete any more.

* .bzrignore: No leim/changed.* files to ignore any more.

2 files changed, 56 insertions, 59 deletions

diff --git a/leim/ChangeLog b/leim/ChangeLog
index 6c3ec294269..ac698f63e71 100644
--- a/leim/ChangeLog
+++ b/leim/ChangeLog
@@ -1,3 +1,18 @@
+2014-06-10  Glenn Morris  <rgm@gnu.org>
+
+        Use GNU Make features to simplify and parallelize.
+        * Makefile.in (CHINESE_TIT, TIT_SOURCES, MISC_SOURCES, changed.tit)
+        (changed.misc): Remove.
+        (${leimdir}/quail, ${leimdir}/ja-dic): Create using order-only prereq.
+        (misc_convert): New.
+        (${leimdir}/quail/%.el, ${leimdir}/quail/CT%.el)
+        (${leimdir}/quail/PY.el, ${leimdir}/quail/ZIRANMA.el)
+        (${leimdir}/quail/tsang-%.el, ${leimdir}/quail/quick-%.el):
+        Use pattern rules.
+        (${leimdir}/leim-list.el, ${leimdir}/ja-dic/ja-dic.el):
+        Use automatic variables.
+        (bootstrap-clean): No changed.* files to delete any more.
+
 2014-04-11  Glenn Morris  <rgm@gnu.org>
 
         * Makefile.in (EMACSDATA, EMACSDOC, EMACSPATH): Unexport.
diff --git a/leim/Makefile.in b/leim/Makefile.in
index 293b052aeb3..16f3917c61c 100644
--- a/leim/Makefile.in
+++ b/leim/Makefile.in
@@ -61,8 +61,6 @@ TIT_BIG5=\
         ${leimdir}/quail/QJ-b5.el       \
         ${leimdir}/quail/ZOZY.el
 
-CHINESE_TIT=${TIT_GB} ${TIT_BIG5}
-
 MISC= \
         ${leimdir}/quail/tsang-b5.el    \
         ${leimdir}/quail/quick-b5.el    \
@@ -73,80 +71,66 @@ MISC= \
         ${leimdir}/quail/CTLau.el       \
         ${leimdir}/quail/CTLau-b5.el
 
-## The generated .el files.
-TIT_MISC=${CHINESE_TIT} ${MISC}
+## All the generated .el files.
+TIT_MISC = ${TIT_GB} ${TIT_BIG5} ${MISC}
+
 
 all: ${leimdir}/leim-list.el ${leimdir}/ja-dic/ja-dic.el
 .PHONY: all
 
-TIT_SOURCES= \
-        ${srcdir}/CXTERM-DIC/4Corner.tit \
-        ${srcdir}/CXTERM-DIC/ARRAY30.tit \
-        ${srcdir}/CXTERM-DIC/CCDOSPY.tit \
-        ${srcdir}/CXTERM-DIC/ECDICT.tit \
-        ${srcdir}/CXTERM-DIC/ETZY.tit \
-        ${srcdir}/CXTERM-DIC/PY-b5.tit \
-        ${srcdir}/CXTERM-DIC/Punct-b5.tit \
-        ${srcdir}/CXTERM-DIC/Punct.tit \
-        ${srcdir}/CXTERM-DIC/QJ-b5.tit \
-        ${srcdir}/CXTERM-DIC/QJ.tit \
-        ${srcdir}/CXTERM-DIC/SW.tit \
-        ${srcdir}/CXTERM-DIC/TONEPY.tit \
-        ${srcdir}/CXTERM-DIC/ZOZY.tit
-
-${CHINESE_TIT}: changed.tit
-        @true
-
-## The changed.* files act to serialize this part of the build.
-## A single Emacs invocation creates all the CHINESE_TIT files.
-## Otherwise in a parallel build multiple Emacs instances could
-## interfere with each other.  If we used GNU make we could probably
-## parallelize this without the need for an explicit rule for each
-## file.  Something like the pattern rule:
-## quail/%.el: CXTERM-DIC/%.tit
-## It doesn't seem possible to do this with VPATH and suffix rules.
-changed.tit: ${TIT_SOURCES}
-        @${MKDIR_P} ${leimdir}/quail
-        ${RUN_EMACS} -l titdic-cnv \
-          -f batch-titdic-convert -dir ${leimdir}/quail ${srcdir}/CXTERM-DIC
-        echo "changed" > $@
-
-MISC_SOURCES= \
-        ${srcdir}/MISC-DIC/CTLau-b5.html \
-        ${srcdir}/MISC-DIC/CTLau.html \
-        ${srcdir}/MISC-DIC/cangjie-table.b5 \
-        ${srcdir}/MISC-DIC/cangjie-table.cns \
-        ${srcdir}/MISC-DIC/pinyin.map \
-        ${srcdir}/MISC-DIC/ziranma.cin
-
-${MISC}: changed.misc
-        @true
-
-changed.misc: ${MISC_SOURCES}
-        @${MKDIR_P} ${leimdir}/quail
+
+## Ensure the output directory exists.
+${TIT_MISC}: | ${leimdir}/quail
+
+${leimdir}/quail ${leimdir}/ja-dic:
+        ${MKDIR_P} $@
+
+
+## All of TIT_GB and TIT_BIG5.
+${leimdir}/quail/%.el: ${srcdir}/CXTERM-DIC/%.tit
         ${RUN_EMACS} -l titdic-cnv \
-          -f batch-miscdic-convert -dir ${leimdir}/quail ${srcdir}/MISC-DIC
-        echo "changed" > $@
+          -f batch-titdic-convert -dir ${leimdir}/quail $<
+
+
+misc_convert = ${RUN_EMACS} -l titdic-cnv -f batch-miscdic-convert -dir ${leimdir}/quail
+
+## CTLau.el, CTLau-b5.el.
+${leimdir}/quail/CT%.el: ${srcdir}/MISC-DIC/CT%.html
+        ${misc_convert} $<
+
+${leimdir}/quail/PY.el: ${srcdir}/MISC-DIC/pinyin.map
+        ${misc_convert} $<
+
+${leimdir}/quail/ZIRANMA.el: ${srcdir}/MISC-DIC/ziranma.cin
+        ${misc_convert} $<
+
+## Processing cangjie-table.b5 and cangjie-table.cns generates two files
+## in each case.
+${leimdir}/quail/tsang-%.el ${leimdir}/quail/quick-%.el: ${srcdir}/MISC-DIC/cangjie-table.%
+        ${misc_convert} $<
+
 
 .PHONY: leim-list.el
 leim-list.el: ${leimdir}/leim-list.el
 
-${leimdir}/leim-list.el: ${TIT_MISC} ${srcdir}/leim-ext.el
+${leimdir}/leim-list.el: ${srcdir}/leim-ext.el ${TIT_MISC}
         rm -f $@
         ${RUN_EMACS} -l international/quail \
           --eval "(update-leim-list-file (unmsys--file-name \"${leimdir}\"))"
-        sed -n -e '/^[^;]/p' -e 's/^;\(;*\)inc /;\1 /p' < ${srcdir}/leim-ext.el >> $@
+        sed -n -e '/^[^;]/p' -e 's/^;\(;*\)inc /;\1 /p' < $< >> $@
+
+
+${leimdir}/ja-dic/ja-dic.el: | $(leimdir)/ja-dic
 
 ${leimdir}/ja-dic/ja-dic.el: $(srcdir)/SKK-DIC/SKK-JISYO.L
-        @$(MKDIR_P) $(leimdir)/ja-dic
         $(RUN_EMACS) -batch -l ja-dic-cnv \
-          -f batch-skkdic-convert -dir "$(leimdir)/ja-dic" \
-          "$(srcdir)/SKK-DIC/SKK-JISYO.L"
+          -f batch-skkdic-convert -dir "$(leimdir)/ja-dic" "$<"
+
 
 .PHONY: bootstrap-clean distclean maintainer-clean extraclean
 
 bootstrap-clean:
-        rm -f ${TIT_MISC} ${leimdir}/leim-list.el changed.tit changed.misc
+        rm -f ${TIT_MISC} ${leimdir}/leim-list.el
 
 distclean:
         rm -f Makefile
@@ -155,8 +139,6 @@ maintainer-clean: distclean bootstrap-clean
 
 ## We do not delete ja-dic, even in a bootstrap, because it rarely
 ## changes and is slow to regenerate.
-## TODO? Could consider doing the same with TIT_MISC, though those
-## are much faster to generate.
 extraclean:
         rm -rf ${leimdir}/ja-dic