build: remove doc/locale language auto-detection, simplify

This removes the rather complicated configure and Makefile parts
related to auto-detecting available languages for manpages and locales.
We don't have non-English manpages or any locales, so this is
pointless. It didn't even work: configure --language=all created an
invalid config.mak that would cause "make install" to fail.

Remove installation of locales. There are no translations at all which
could be installed. Should there ever be someone who is interested in
adding translations, this can be added back in a simpler way.

Rename the --enable-translation configure option to --enable-gettext.
This is what this option really does: enable gettext() use. This may
be interesting for people who want to experiment with localizing mpv,
but is entirely useless for normal use.

Remove detection of the binary codecs directory in configure.

4 files changed, 22 insertions, 167 deletions

diff --git a/.gitignore b/.gitignore
index 6fc7816d5c..7ceff799c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,8 +14,6 @@
 /core/input/input_conf.h
 /tags
 /TAGS
-/locale
-/po
 /video/out/vo_opengl_shaders.h
 /video/out/vdpau_template.c
 /demux/ebml_defs.c
diff --git a/Makefile b/Makefile
index 466f095052..40b3ed661c 100644
--- a/Makefile
+++ b/Makefile
@@ -286,11 +286,9 @@ ALL_PRG         += mpv$(EXESUF)
 
 INSTALL_TARGETS += check_rst2man       \
                    install-mpv     \
-                   install-mpv-man \
-                   install-mpv-msg
+                   install-mpv-man
 
-INSTALL_NO_MAN_TARGETS += install-mpv  \
-                          install-mpv-msg
+INSTALL_NO_MAN_TARGETS += install-mpv
 
 DIRS =  . \
         audio \
@@ -309,8 +307,6 @@ DIRS =  . \
         video/filter \
         video/out
 
-MOFILES := $(MSG_LANGS:%=locale/%/LC_MESSAGES/mpv.mo)
-
 
 ADDSUFFIXES     = $(foreach suf,$(1),$(addsuffix $(suf),$(2)))
 ADD_ALL_DIRS    = $(call ADDSUFFIXES,$(1),$(DIRS))
@@ -325,7 +321,7 @@ endif
 
 ###### generic rules #######
 
-all: $(ALL_PRG) locales
+all: $(ALL_PRG)
 
 %.1: %.rst
 	$(RST2MAN) $< $@
@@ -392,16 +388,9 @@ version.h .version: version.sh
 %$(EXESUF): %.c
 	$(CC) $(CFLAGS) -o $@ $^
 
-locales: $(MOFILES)
-
-locale/%/LC_MESSAGES/mpv.mo: po/%.po
-	mkdir -p $(dir $@)
-	msgfmt -c -o $@ $<
-
 %.ho: %.h
 	$(CC) $(CFLAGS) -Wno-unused -c -o $@ -x c $<
 
-
 ###### dependency declarations / specific CFLAGS ######
 
 core/version.c osdep/mpv-rc.o: version.h
@@ -421,46 +410,26 @@ install-no-man: $(INSTALL_NO_MAN_TARGETS)
 install-dirs:
 	if test ! -d $(BINDIR) ; then $(INSTALL) -d $(BINDIR) ; fi
 	if test ! -d $(CONFDIR) ; then $(INSTALL) -d $(CONFDIR) ; fi
-	if test ! -d $(LIBDIR) ; then $(INSTALL) -d $(LIBDIR) ; fi
 
 install-%: %$(EXESUF) install-dirs
 	$(INSTALL) -m 755 $(INSTALLSTRIP) $< $(BINDIR)
 
-install-mpv-man:  $(foreach lang,$(MAN_LANGS),install-mpv-man-$(lang))
-install-mpv-msg:  $(foreach lang,$(MSG_LANGS),install-mpv-msg-$(lang))
+install-mpv-man:  install-mpv-man-en
 
 install-mpv-man-en: DOCS/man/en/mpv.1
 	if test ! -d $(MANDIR)/man1 ; then $(INSTALL) -d $(MANDIR)/man1 ; fi
 	$(INSTALL) -m 644 DOCS/man/en/mpv.1 $(MANDIR)/man1/
 
-define MPLAYER_MAN_RULE
-install-mpv-man-$(lang): DOCS/man/$(lang)/mpv.1
-	if test ! -d $(MANDIR)/$(lang)/man1 ; then $(INSTALL) -d $(MANDIR)/$(lang)/man1 ; fi
-	$(INSTALL) -m 644 DOCS/man/$(lang)/mpv.1 $(MANDIR)/$(lang)/man1/
-endef
-
-$(foreach lang,$(filter-out en,$(MAN_LANG_ALL)),$(eval $(MPLAYER_MAN_RULE)))
-
-define MPLAYER_MSG_RULE
-install-mpv-msg-$(lang):
-	if test ! -d $(LOCALEDIR)/$(lang)/LC_MESSAGES ; then $(INSTALL) -d $(LOCALEDIR)/$(lang)/LC_MESSAGES ; fi
-	$(INSTALL) -m 644 locale/$(lang)/LC_MESSAGES/mpv.mo $(LOCALEDIR)/$(lang)/LC_MESSAGES/
-endef
-
-$(foreach lang,$(MSG_LANG_ALL),$(eval $(MPLAYER_MSG_RULE)))
-
 uninstall:
 	$(RM) $(BINDIR)/mpv$(EXESUF)
 	$(RM) $(MANDIR)/man1/mpv.1
-	$(RM) $(foreach lang,$(MAN_LANGS),$(foreach man,mpv.1,$(MANDIR)/$(lang)/man1/$(man)))
-	$(RM) $(foreach lang,$(MSG_LANGS),$(LOCALEDIR)/$(lang)/LC_MESSAGES/mpv.1)
+	$(RM) $(MANDIR)/en/man1/mpv.1
 
 clean:
 	-$(RM) $(call ADD_ALL_DIRS,/*.o /*.d /*.a /*.ho /*~)
-	-$(RM) $(foreach lang,$(MAN_LANGS),$(foreach man,mpv.1,DOCS/man/$(lang)/$(man)))
 	-$(RM) $(call ADD_ALL_DIRS,/*.o /*.a /*.ho /*~)
 	-$(RM) $(call ADD_ALL_EXESUFS,mpv)
-	-$(RM) $(MOFILES)
+	-$(RM) DOCS/man/en/mpv.1
 	-$(RM) version.h
 	-$(RM) core/codecs.conf.h
 	-$(RM) core/input/input_conf.h
@@ -470,7 +439,6 @@ clean:
 	-$(RM) sub/osd_font.h
 
 distclean: clean
-	-$(RM) -r locale
 	-$(RM) config.log config.mak config.h TAGS tags
 
 TAGS:
@@ -484,7 +452,7 @@ osxbundle:
 
 -include $(DEP_FILES)
 
-.PHONY: all locales *install*
+.PHONY: all *install*
 .PHONY: checkheaders *clean .version
 
 # Disable suffix rules.  Most of the builtin rules are suffix rules,
diff --git a/configure b/configure
index 91a16bfcbe..e494d8df59 100755
--- a/configure
+++ b/configure
@@ -272,10 +272,6 @@ case $(echo -n) in
   *)    _echo_n='-n '   _echo_c=        ;;      # BSD echo
 esac
 
-msg_lang_all=''
-ls po/*.po >/dev/null 2>&1 && msg_lang_all=$(echo po/*.po | sed -e 's:po/\([^[:space:]]*\)\.po:\1:g')
-man_lang_all=$(echo DOCS/man/??/mpv.1 DOCS/man/??_??/mpv.1 | sed -e "s:DOCS/man/\(..\)/mpv.1:\1:g" -e "s:DOCS/man/\(.._..\)/mpv.1:\1:g")
-doc_lang_all=$(echo DOCS/xml/??/ DOCS/xml/??_??/ | sed -e "s:DOCS/xml/\(..\)/:\1:g" -e "s:DOCS/xml/\(.._..\)/:\1:g")
 
 show_help(){
 cat << EOF
@@ -292,12 +288,9 @@ Installation directories:
   --mandir=DIR           directory for installing man pages [PREFIX/share/man]
   --confdir=DIR          directory for installing configuration files
                          [PREFIX/etc/mpv]
-  --localedir=DIR        directory for locale tree [PREFIX/share/locale]
-  --libdir=DIR           directory for object code libraries [PREFIX/lib]
-  --codecsdir=DIR        directory for binary codecs [LIBDIR/codecs]
+  --localedir=DIR        directory for gettext locales [PREFIX/share/locale]
 
 Optional features:
-  --disable-mpv          disable mpv compilation [enable]
   --disable-encoding     disable encoding functionality [enable]
   --enable-termcap       use termcap database for key codes [autodetect]
   --enable-termios       use termios database for key codes [autodetect]
@@ -378,22 +371,8 @@ Audio output:
   --disable-dsound        disable DirectSound audio output [autodetect]
   --disable-select       disable using select() on the audio device [enable]
 
-Language options:
-  --enable-translation   enable support for translated output [disable]
-  --language-doc=lang    language to use for the documentation [en]
-  --language-man=lang    language to use for the man pages [en]
-  --language-msg=lang    extra languages for program messages [all]
-  --language=lang        default language to use [en]
-Specific options override --language. You can pass a list of languages separated
-by whitespace or commas instead of a single language. Nonexisting translations
-will be dropped from each list. All translations available in the list will be
-installed. The value "all" will activate all translations. The LINGUAS
-environment variable is honored. In all cases the fallback is English.
-The program always supports English-language output; additional message
-languages are only installed if --enable-translation is also specified.
-Available values for --language-doc are: all $doc_lang_all
-Available values for --language-man are: all $man_lang_all
-Available values for --language-msg are: all $msg_lang_all
+Localization options:
+  --enable-gettext       enable gettext() usage [disable]
 
 Miscellaneous options:
   --enable-cross-compile enable cross-compilation [disable]
@@ -492,9 +471,8 @@ _apple_remote=auto
 _apple_ir=auto
 _termcap=auto
 _termios=auto
-#language=en
 _shm=auto
-_translation=no
+_gettext=no
 _cdda=auto
 _cddb=auto
 _coreaudio=auto
@@ -541,12 +519,6 @@ for ac_option do
   --confdir=*)
     _confdir=$(echo $ac_option | cut -d '=' -f 2)
     ;;
-  --libdir=*)
-    _libdir=$(echo $ac_option | cut -d '=' -f 2)
-    ;;
-  --codecsdir=*)
-    _codecsdir=$(echo $ac_option | cut -d '=' -f 2)
-    ;;
   --localedir=*)
     _localedir=$(echo $ac_option | cut -d '=' -f 2)
     ;;
@@ -580,18 +552,6 @@ for ac_option do
   --windres=*)
     _windres=$(echo $ac_option | cut -d '=' -f 2)
     ;;
-  --language-doc=*)
-    language_doc=$(echo $ac_option | cut -d '=' -f 2)
-    ;;
-  --language-man=*)
-    language_man=$(echo $ac_option | cut -d '=' -f 2)
-    ;;
-  --language-msg=*)
-    language_msg=$(echo $ac_option | cut -d '=' -f 2)
-    ;;
-  --language=*)
-    language=$(echo $ac_option | cut -d '=' -f 2)
-    ;;
 
   --enable-static)
     _ld_static='-static'
@@ -616,8 +576,8 @@ for ac_option do
   --disable-debug)
     _debug=
     ;;
-  --enable-translation)              _translation=yes           ;;
-  --disable-translation)             _translation=no            ;;
+  --enable-gettext)                 _gettext=yes                ;;
+  --disable-gettext)                _gettext=no                 ;;
   --enable-cross-compile)           _cross_compile=yes          ;;
   --disable-cross-compile)          _cross_compile=no           ;;
   --enable-encoding)    _encoding=yes   ;;
@@ -785,7 +745,6 @@ test -z "$_bindir"  && _bindir="$_prefix/bin"
 test -z "$_datadir" && _datadir="$_prefix/share/mpv"
 test -z "$_mandir"  && _mandir="$_prefix/share/man"
 test -z "$_confdir" && _confdir="$_prefix/etc/mpv"
-test -z "$_libdir"  && _libdir="$_prefix/lib"
 test -z "$_localedir"  && _localedir="$_prefix/share/locale"
 
 for tmpdir in "$TMPDIR" "$TEMPDIR" "/tmp" ; do
@@ -1271,54 +1230,13 @@ else
 fi
 
 
-echocheck "translation support"
-if test "$_translation" = yes; then
-  def_translation="#define CONFIG_TRANSLATION 1"
+echocheck "gettext support"
+if test "$_gettext" = yes; then
+  def_gettext="#define CONFIG_GETTEXT 1"
 else
-  def_translation="#undef CONFIG_TRANSLATION"
+  def_gettext="#undef CONFIG_GETTEXT"
 fi
-echores "$_translation"
-
-echocheck "language"
-# Set preferred languages, "all" uses English as main language.
-test -z "$language" && language=$LINGUAS
-test -z "$language_doc" && language_doc=$language
-test -z "$language_man" && language_man=$language
-test -z "$language_msg" && language_msg=$language
-test -z "$language_msg" && language_msg="all"
-language_doc=$(echo $language_doc | tr , " ")
-language_man=$(echo $language_man | tr , " ")
-language_msg=$(echo $language_msg | tr , " ")
-
-test "$language_doc" = "all" && language_doc=$doc_lang_all
-test "$language_man" = "all" && language_man=$man_lang_all
-test "$language_msg" = "all" && language_msg=$msg_lang_all
-
-if test "$_translation" != yes ; then
-  language_msg=""
-fi
-
-# Prune non-existing translations from language lists.
-# Set message translation to the first available language.
-# Fall back on English.
-for lang in $language_doc ; do
-  test -d DOCS/xml/$lang && tmp_language_doc="$tmp_language_doc $lang"
-done
-language_doc=$tmp_language_doc
-test -z "$language_doc" && language_doc=en
-
-for lang in $language_man ; do
-  test -d DOCS/man/$lang && tmp_language_man="$tmp_language_man $lang"
-done
-language_man=$tmp_language_man
-test -z "$language_man" && language_man=en
-
-for lang in $language_msg ; do
-  test -f po/$lang.po && tmp_language_msg="$tmp_language_msg $lang"
-done
-language_msg=$tmp_language_msg
-
-echores "messages (en+): $language_msg - man pages: $language_man - documentation: $language_doc"
+echores "$_gettext"
 
 
 echocheck "__builtin_expect"
@@ -2910,22 +2828,6 @@ test "$_libbs2b" = yes && def_libbs2b="#define CONFIG_LIBBS2B 1"
 echores "$_libbs2b"
 
 
-if test -z "$_codecsdir" ; then
-  for dir in "$_libdir/codecs" "$_libdir/win32" /usr/local/lib/codecs \
-             /usr/lib/codecs /usr/local/lib/win32 /usr/lib/win32 ; do
-    if test -d "$dir" ; then
-      _codecsdir="$dir"
-      break;
-    fi;
-  done
-fi
-# Fall back on default directory.
-if test -z "$_codecsdir" ; then
-  _codecsdir="$_libdir/codecs"
-  mingw32 && _codecsdir="codecs"
-fi
-
-
 echocheck "LCMS2 support"
 if test "$_lcms2" = auto ; then
     _lcms2=no
@@ -3304,17 +3206,9 @@ export LC_ALL = C
 
 CONFIGURATION = $configuration
 
-DOC_LANGS = $language_doc
-DOC_LANG_ALL = $doc_lang_all
-MAN_LANGS = $language_man
-MAN_LANG_ALL = $man_lang_all
-MSG_LANGS = $language_msg
-MSG_LANG_ALL = $msg_lang_all
-
 prefix  = \$(DESTDIR)$_prefix
 BINDIR  = \$(DESTDIR)$_bindir
 DATADIR = \$(DESTDIR)$_datadir
-LIBDIR  = \$(DESTDIR)$_libdir
 MANDIR  = \$(DESTDIR)$_mandir
 CONFDIR = \$(DESTDIR)$_confdir
 LOCALEDIR = \$(DESTDIR)$_localedir
@@ -3457,7 +3351,7 @@ cat > $TMPH << EOF
 #define MPLAYER_CONFDIR "$_confdir"
 #define MPLAYER_LOCALEDIR "$_localedir"
 
-$def_translation
+$def_gettext
 
 
 /* system headers */
@@ -3659,11 +3553,6 @@ Config files successfully generated by ./configure $configuration !
   Data directory: $_datadir
   Config direct.: $_confdir
 
-  Languages:
-    Messages (in addition to English): $language_msg
-    Manual pages: $language_man
-    Documentation: $language_doc
-
   Enabled optional drivers:
     Input: $inputmodules
     Codecs: libavcodecs $codecmodules
diff --git a/core/mp_msg.c b/core/mp_msg.c
index d0cce8e064..2e6f148438 100644
--- a/core/mp_msg.c
+++ b/core/mp_msg.c
@@ -26,7 +26,7 @@
 #include "osdep/getch2.h"
 #include "osdep/io.h"
 
-#ifdef CONFIG_TRANSLATION
+#ifdef CONFIG_GETTEXT
 #include <locale.h>
 #include <libintl.h>
 #endif
@@ -86,7 +86,7 @@ void mp_msg_init(void){
     for(i=0;i<MSGT_MAX;i++) mp_msg_levels[i] = -2;
     mp_msg_cancolor = isatty(fileno(stdout));
     mp_msg_levels[MSGT_IDENTIFY] = -1; // no -identify output by default
-#ifdef CONFIG_TRANSLATION
+#ifdef CONFIG_GETTEXT
     textdomain("mpv");
     char *localedir = getenv("MPV_LOCALEDIR");
     if (localedir == NULL && strlen(MPLAYER_LOCALEDIR))
@@ -249,7 +249,7 @@ void mp_msg(int mod, int lev, const char *format, ...)
 
 char *mp_gtext(const char *string)
 {
-#ifdef CONFIG_TRANSLATION
+#ifdef CONFIG_GETTEXT
     /* gettext expects the global locale to be set with
      * setlocale(LC_ALL, ""). However doing that would suck for a
      * couple of reasons (locale stuff is badly designed and sucks in