Add support for an 'internal' libass, with this we can chase changes to the

libass in MPlayer which is more up-to-date than the external library that's
available.

Originally committed to SVN as r2096.

Makefile.am

@@ -9,10 +9,15 @@ if HAVE_AUTO3_LUA
 auto3 = auto3
 endif
 
+if WITH_INTERNAL_LIBASS
+libass = libass
+endif
+
 
 SUBDIRS = \
 	$(univchardet) \
 	$(auto3) \
+    $(libass) \
 	aegisub \
 	automation \
 	po \

aegisub/Makefile.am

@@ -9,8 +9,12 @@ AM_CXXFLAGS = -DAEGISUB -Iposix -include posix/defines.h -Iinclude @WX_CPPFLAGS@
 bin_PROGRAMS = aegisub
 aegisub_LDADD = posix/libposix.a
 aegisub_CPPFLAGS = @FREETYPE_CFLAGS@
-aegisub_LDFLAGS = @GL_LIBS@ @FREETYPE_LIBS@ @PTHREAD_LIBS@ @WX_LIBS@
+aegisub_LDFLAGS = @GL_LIBS@ @PTHREAD_LIBS@ @WX_LIBS@
+LIBS += @FREETYPE_LIBS@ @FONTCONFIG_LIBS@
 
+if WITH_INTERNAL_LIBASS
+aegisub_LDFLAGS += @FONTCONFIG_LIBS@
+endif
 
 #XXX: fix this so it's generated by configure and put into acconf.h
 #BUILDINFO := -DBUILD_CREDIT=verm -DBUILD_SVN_REVISION=0
@@ -57,7 +61,7 @@ if HAVE_LIBASS
 noinst_LIBRARIES += libsubtitle_ass.a
 libsubtitle_ass_a_SOURCES = subtitles_provider_libass.cpp
 libsubtitle_ass_a_CPPFLAGS = @LIBASS_CFLAGS@
-aegisub_LDFLAGS += @LIBASS_LIBS@
+LIBS += @LIBASS_LIBS@
 aegisub_LDADD += libsubtitle_ass.a
 endif
 

configure.in

@@ -135,6 +135,31 @@ AM_CONDITIONAL([HAVE_OPENMP], [test "$with_openmp" != "no"])
 AC_SUBST(OPENMP_CXXFLAGS)
 
 
+
+##############################
+# Program Support and Features
+##############################
+AC_CHECK_HEADER([wchar.h],,[AC_MSG_FAILURE([aegisub requires wide character support])])
+
+AX_CHECK_GL
+if test ! "$GL_LIBS"; then
+	AC_MSG_FAILURE([aegisub requires GL support.])
+fi
+AC_SUBST(GL_CFLAGS)
+AC_SUBST(GL_LIBS)
+
+PKG_CHECK_MODULES(FREETYPE, freetype2 >= 9.7.0,
+  AC_DEFINE(WITH_FREETYPE2, 1, [Enable FreeType 2 support.]),
+  [AC_MSG_FAILURE([aegisub requires >= FreeType2 2.1.9])])
+
+PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.4,
+  AC_DEFINE(WITH_FONTCONFIG, 1, [Enable FontConfig support.]),
+  [AC_MSG_FAILURE([aegisub requires >= fontconfig >= 2.4])])
+AC_SUBST(FONTCONFIG_CFLAGS)
+AC_SUBST(FONTCONFIG_LIBS)
+
+
+
 #################
 # Audio Providers
 #################
@@ -250,54 +275,54 @@ AM_CONDITIONAL([HAVE_FFMPEG], [test "$with_ffmpeg" != "no"])
 # Subtitle Provider
 ###################
 
-AC_ARG_WITH(libass, [  --without-libass        disable libass (default=autodetect)],libass_disabled="(disabled)")
+AC_ARG_WITH(libass, [  --without-libass        disable libass (default=enable)],libass_disabled="(disabled)")
+AC_ARG_ENABLE(libass, [  --disable-libass        disable internal libass support (default=enabled)],libass_internal_disabled="(disabled)")
 
-if test "x$with_libass" != xno; then
+AC_ARG_VAR([ICONV_CFLAGS], [CFLAGS to use for iconv (default: CPPFLAGS)])
-  PKG_CHECK_MODULES(LIBASS, libass >= 0.9.1)
+AC_ARG_VAR([ICONV_LDFLAGS], [LDFLAGS to use for iconv (default: LDFLAGS)])
 
-  aegisub_save_LDFLAGS="$LDFLAGS"
+if test "$with_libass" != "no"; then
-  LDFLAGS="$LIBASS_LIBS"
+  if test "$enable_libass" = "no"; then
-  AC_CHECK_LIB([ass], [ass_read_styles],[LIBASS_LIBS="$LIBASS_LIBS]", with_libass=no)
+    PKG_CHECK_MODULES(LIBASS, libass >= 0.9.1)
-  LDFLAGS="$aegisub_save_LDFLAGS"
 
-  aegisub_save_CPPFLAGS="$CPPFLAGS"
+    aegisub_save_LDFLAGS="$LDFLAGS"
-  CPPFLAGS="$LIBASS_CFLAGS"
+    LDFLAGS="$LIBASS_LIBS"
-  AC_CHECK_HEADER([ass/ass.h],[LIBASS_CFLAGS="$LIBASS_CFLAGS"],with_libass="no")
+    AC_CHECK_LIB([ass], [ass_read_styles],[LIBASS_LIBS="$LIBASS_LIBS"; with_libass="yes"], with_libass=no)
-  CPPFLAGS="$aegisub_save_CPPFLAGS"
+    LDFLAGS="$aegisub_save_LDFLAGS"
+
+    aegisub_save_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$LIBASS_CFLAGS"
+    AC_CHECK_HEADER([ass/ass.h], [LIBASS_CFLAGS="$LIBASS_CFLAGS"; with_libass="yes"], with_libass="no")
+    CPPFLAGS="$aegisub_save_CPPFLAGS"
+    with_internal_libass="no"
+  else
+    AC_CHECK_HEADER(iconv.h, [ICONV_CFLAGS="$ICONV_CFLAGS"; with_iconv="yes"], with_iconv="no")
+    AC_CHECK_LIB([iconv], [iconv_open],[ICONV_LDFLAGS="ICONV_LIBS"; with_iconv="yes"], with_iconv="no")
+
+    if test "$with_iconv" = "yes"; then
+      LIBASS_LIBS="-L../libass -lass_aegisub"
+      LIBASS_CFLAGS="-I../libass"
+      with_internal_libass="yes"
+    else
+      with_internal_libass="no"
+    fi
+  fi
 fi
 
 if test "$with_libass" != "no"; then
   AC_DEFINE(WITH_LIBASS, 1, [Enable libass Subtitle Provider])
   with_libass="yes"
+else
+  with_internal_libass="no"
 fi
 
 AC_SUBST(LIBASS_LIBS)
 AC_SUBST(LIBASS_CFLAGS)
+AM_CONDITIONAL([WITH_INTERNAL_LIBASS], [test "$with_libass" != "no" ])
 AM_CONDITIONAL([HAVE_LIBASS], [test "$with_libass" != "no" ])
 
 
 
-##############################
-# Program Support and Features
-##############################
-AC_CHECK_HEADER([wchar.h],,[AC_MSG_FAILURE([aegisub requires wide character support])])
-
-AX_CHECK_GL
-if test ! "$GL_LIBS"; then
-	AC_MSG_FAILURE([aegisub requires GL support.])
-fi
-AC_SUBST(GL_CFLAGS)
-AC_SUBST(GL_LIBS)
-
-PKG_CHECK_MODULES(FREETYPE, freetype2 >= 9.7.0,
-  AC_DEFINE(WITH_FREETYPE2, 1, [Enable FreeType 2 support.]),
-  [AC_MSG_FAILURE([aegisub requires >= FreeType2 2.1.9])])
-
-PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.4,
-  AC_DEFINE(WITH_FONTCONFIG, 1, [Enable FontConfig support.]),
-  [AC_MSG_FAILURE([aegisub requires >= fontconfig >= 2.4])])
-
-
 
 ###########
 ## Hunspell
@@ -621,6 +646,7 @@ aegisub/bitmaps/Makefile
 aegisub/posix/Makefile
 universalchardet/Makefile
 auto3/Makefile
+libass/Makefile
 automation/Makefile
 po/Makefile.in
 m4macros/Makefile
@@ -680,7 +706,7 @@ Video Providers
 
 Subtitle Providers:
   asa:                   $with_asa
-  libass:                $with_libass
+  libass:                $with_libass $libass_disabled (internal: $with_internal_libass)
 
 Misc Packages:
   hunspell:              $with_hunspell $hunspell_disabled

libass/Makefile.am

@@ -1,7 +1,7 @@
-noinst_LIBRARIES = libass.a
+noinst_LIBRARIES = libass_aegisub.a
 
-libass_a_CPPFLAGS = @FREETYPE_CFLAGS@ -DHAVE_FONTCONFIG -DUSE_ICONV @FONTCONFIG_CFLAGS@
+libass_aegisub_a_CPPFLAGS = @FREETYPE_CFLAGS@ -DHAVE_FONTCONFIG -DUSE_ICONV @FONTCONFIG_CFLAGS@
-libass_a_SOURCES = ass.c ass_cache.c ass_font.c ass_fontconfig.c ass_render.c \
+libass_aegisub_a_SOURCES = ass.c ass_cache.c ass_font.c ass_fontconfig.c ass_render.c \
                     ass_utils.c ass_bitmap.c ass_library.c mputils.c \
                     ass_bitmap.h ass_cache.h ass_fontconfig.h ass_font.h ass.h \
                     ass_library.h ass_types.h ass_utils.h help_mp.h mputils.h

libass/ass_fontconfig.c

@@ -40,7 +40,7 @@
 #include <fontconfig/fcfreetype.h>
 #endif
 
-extern int font_fontconfig;
+int font_fontconfig = 1;
 
 struct fc_instance_s {
 #ifdef HAVE_FONTCONFIG