From 785422db30942c888a20fe56c9a55325cdafef5e Mon Sep 17 00:00:00 2001
From: Katsuhiko Nishimra <kat841@hotmail.com>
Date: Thu, 19 Nov 2009 20:44:55 +0900
Subject: [PATCH] Defined make rule to generate translated man pages.

---
 Makefile.in                 | 21 ++++++++++++++++++++-
 ac/manpages_translations.m4 | 18 ++++++++++++++++++
 ac/po4a.m4                  | 24 ++++++++++++++++++++++++
 configure.in                |  2 ++
 4 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 ac/manpages_translations.m4
 create mode 100644 ac/po4a.m4

diff --git a/Makefile.in b/Makefile.in
index d10180017..356841857 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -85,6 +85,11 @@ MINGW_LIBS = @MINGW_LIBS@
 MINGW = @MINGW@
 OGG_LIBS = @OGG_LIBS@
 OPTIMIZATION_CFLAGS = @OPTIMIZATION_CFLAGS@
+PO4A = @PO4A@
+PO4A_TRANSLATE = @PO4A_TRANSLATE@
+PO4A_FLAGS = @PO4A_FLAGS@
+PO4A_TRANSLATE_FLAGS = @PO4A_TRANSLATE_FLAGS@
+PO4A_WORKS = @PO4A_WORKS@
 PROFILING_CFLAGS = @PROFILING_CFLAGS@
 PROFILING_LIBS = @PROFILING_LIBS@
 QT_CFLAGS = @QT_CFLAGS@
@@ -165,6 +170,12 @@ TRANSLATIONS = @TRANSLATIONS@
 TRANSLATIONS_POS = @TRANSLATIONS_POS@
 TRANSLATIONS_MOS = $(patsubst %.po,%.mo,$(TRANSLATIONS_POS))
 
+ifeq (yes,$(PO4A_WORKS))
+MANPAGES_TRANSLATIONS = @MANPAGES_TRANSLATIONS@
+MANPAGES_TRANSLATIONS_POS = @MANPAGES_TRANSLATIONS_POS@
+MANPAGES_TRANSLATED = @MANPAGES_TRANSLATED@
+endif
+
 HTMLHELPBOOKS = mkvmerge-gui-book
 
 SYSTEM_INCLUDES = -I. -Ilib -Ilib/avilib-0.6.10 -Ilib/utf8-cpp/source -Isrc
@@ -221,7 +232,7 @@ endif
 # Only rebuild the man pages if both xsltproc and the DocBook
 # stylesheet have been found by configure.
 ifeq ($(XSLTPROC_WORKS),yes)
-  MANPAGES_DEP = $(MANPAGES)
+  MANPAGES_DEP = $(MANPAGES) $(MANPAGES_TRANSLATED)
 endif
 
 all: $(MANPAGES_DEP) $(TAGSFILE) $(APPLICATIONS) $(TRANSLATIONS_MOS) $(HTMLHELPBOOKS)
@@ -269,6 +280,11 @@ install-guide:
 
 manpages: $(MANPAGES)
 
+translated-manpages: $(MANPAGES_TRANSLATED)
+
+update-manpage-po:
+	$(PO4A) $(PO4A_FLAGS) doc/man/po4a/po4a.cfg
+
 # Some general rules
 ifeq (1,$(LIBMTXCOMMONDLL))
 %.o: %.cpp
@@ -310,6 +326,9 @@ endif
 	@echo 'XSLTPROC ' $<
 	$(Q)$(XSLTPROC) $(XSLTPROC_FLAGS) -o $@ $(DOCBOOK_MANPAGES_STYLESHEET) $<
 
+# translated DocBook XML
+@MANPAGES_TRANSLATED_XML_RULE@
+
 # Qt files
 %.h: %.ui
 	@echo '     UIC ' $<
diff --git a/ac/manpages_translations.m4 b/ac/manpages_translations.m4
new file mode 100644
index 000000000..c642ba452
--- /dev/null
+++ b/ac/manpages_translations.m4
@@ -0,0 +1,18 @@
+AC_MSG_CHECKING(the manpage translation languages to install)
+MANPAGES_TRANSLATIONS_POS="`echo $srcdir/doc/man/po4a/po/*.po`"
+MANPAGES_TRANSLATIONS="`echo "$MANPAGES_TRANSLATIONS_POS" | \
+  sed -e 's/\S*\/\(\w*\).po/\1/g'`"
+AC_MSG_RESULT($MANPAGES_TRANSLATIONS)
+
+MANPAGES_TRANSLATED="`for lang in $MANPAGES_TRANSLATIONS; do \
+  echo '$(subst doc/man, doc/man/'$lang', $(MANPAGES))'; done`"
+
+MANPAGES_TRANSLATED_XML_RULE="`for lang in $MANPAGES_TRANSLATIONS; do \
+  echo "doc/man/$lang/%.xml: doc/man/%.xml doc/man/po4a/po/$lang.po"
+  echo '	$(PO4A_TRANSLATE) $(PO4A_TRANSLATE_FLAGS) -m $< -p '"doc/man/po4a/po/$lang.po "'-l $@';done`"
+
+
+AC_SUBST(MANPAGES_TRANSLATIONS)
+AC_SUBST(MANPAGES_TRANSLATIONS_POS)
+AC_SUBST(MANPAGES_TRANSLATED)
+AC_SUBST(MANPAGES_TRANSLATED_XML_RULE)
diff --git a/ac/po4a.m4 b/ac/po4a.m4
new file mode 100644
index 000000000..40def0e0a
--- /dev/null
+++ b/ac/po4a.m4
@@ -0,0 +1,24 @@
+TRANSLATE_PERCENT=5
+PO4A_FLAGS="-M utf-8 -k $TRANSLATE_PERCENT"
+PO4A_TRANSLATE_FLAGS="$PO4A_FLAGS -f docbook"
+AC_PATH_PROG(PO4A, po4a)
+AC_PATH_PROG(PO4A_TRANSLATE, po4a-translate)
+
+if test "$PO4A" != "" -a "$PO4A_TRANSLATE" != ""; then
+  AC_CACHE_CHECK([whether po4a-translate works],
+    [ac_cv_po4a_works],
+    [
+      ac_cv_po4a_works=no
+      $PO4A_TRANSLATE $PO4A_TRANSLATE_FLAGS -m $srcdir/doc/man/mkvmerge.xml -p $srcdir/doc/man/po4a/po/ja.po -l /dev/null
+      if test "$?" = 0; then
+        ac_cv_po4a_works=yes
+      fi
+    ])
+  PO4A_WORKS=$ac_cv_po4a_works
+fi
+
+AC_SUBST(PO4A)
+AC_SUBST(PO4A_TRANSLATE)
+AC_SUBST(PO4A_FLAGS)
+AC_SUBST(PO4A_TRANSLATE_FLAGS)
+AC_SUBST(PO4A_WORKS)
diff --git a/configure.in b/configure.in
index c267b28e9..c8f103224 100644
--- a/configure.in
+++ b/configure.in
@@ -44,6 +44,8 @@ m4_include(ac/boost.m4)
 m4_include(ac/etags.m4)
 m4_include(ac/ax_docbook.m4)
 m4_include(ac/tiocgwinsz.m4)
+m4_include(ac/po4a.m4)
+m4_include(ac/manpages_translations.m4)
 
 AC_OUTPUT(
   Makefile