Make luatex compile against poppler 0.18.0 (only).

API which has been removed from poppler will be removed from the LUA
bindings as well.  Replacement API isn't added by this patch.  In contrast
to previous patches proposed by the author, this patch does not use
preprocessor switches, but instead changes the API unconditionally.  It
therefore requires poppler 0.17.0 or later to compile.  The patch should be
applied conditionally, to maintain compatibility with older poppler releases
as well.

2011-10-05 Martin von Gagern

References:
http://cgit.freedesktop.org/poppler/poppler/commit/?id=664865a2ddca9c20
http://cgit.freedesktop.org/poppler/poppler/commit/?id=2bf82f27bd9c8f97
http://cgit.freedesktop.org/poppler/poppler/commit/?id=04dfb2c984b3c994
http://thread.gmane.org/gmane.comp.tex.luatex/2630
https://bugs.gentoo.org/384875

Index: luatex-beta-0.70.1/source/texk/web2c/luatexdir/lua/lepdflib.cc
===================================================================
--- luatex-beta-0.70.1.orig/source/texk/web2c/luatexdir/lua/lepdflib.cc
+++ luatex-beta-0.70.1/source/texk/web2c/luatexdir/lua/lepdflib.cc
@@ -89,7 +89,6 @@ new_poppler_userdata(AnnotBorder);
 new_poppler_userdata(Annots);
 new_poppler_userdata(Array);
 new_poppler_userdata(Catalog);
-new_poppler_userdata(EmbFile);
 new_poppler_userdata(Dict);
 //new_poppler_userdata(GooString);
 new_poppler_userdata(LinkDest);
@@ -393,7 +392,7 @@ static int m_Annot__gc(lua_State * L)
     printf("\n===== Annot GC ===== uin=<%p>\n", uin);
 #endif
     if (uin->atype == ALLOC_LEPDF)
-        delete(Annot *) uin->d;
+        ((Annot *) uin->d)->decRefCnt();
     return 0;
 }
 
@@ -408,34 +407,6 @@ static const struct luaL_Reg Annot_m[] =
 };
 
 //**********************************************************************
-// AnnotBorderStyle
-
-m_poppler_get_DOUBLE(AnnotBorderStyle, getWidth);
-
-m_poppler__tostring(AnnotBorderStyle);
-
-static int m_Annots__gc(lua_State * L)
-{
-    udstruct *uin;
-    uin = (udstruct *) luaL_checkudata(L, 1, M_Annots);
-    if (uin->pd != NULL && uin->pd->pc != uin->pc)
-        pdfdoc_changed_error(L);
-#ifdef DEBUG
-    printf("\n===== Annots GC ===== uin=<%p>\n", uin);
-#endif
-    if (uin->atype == ALLOC_LEPDF)
-        delete(Annots *) uin->d;
-    return 0;
-}
-
-static const struct luaL_Reg AnnotBorderStyle_m[] = {
-    {"getWidth", m_AnnotBorderStyle_getWidth},
-    {"__tostring", m_AnnotBorderStyle__tostring},
-    {"__gc", m_Annots__gc},
-    {NULL, NULL}                // sentinel
-};
-
-//**********************************************************************
 // Annots
 
 m_poppler_get_INT(Annots, getNumAnnots);
@@ -683,31 +654,6 @@ static int m_Catalog_findDest(lua_State
 
 m_poppler_get_poppler(Catalog, Object, getDests);
 m_poppler_get_INT(Catalog, numEmbeddedFiles);
-
-static int m_Catalog_embeddedFile(lua_State * L)
-{
-    EmbFile *ef;
-    int i, len;
-    udstruct *uin, *uout;
-    uin = (udstruct *) luaL_checkudata(L, 1, M_Catalog);
-    if (uin->pd != NULL && uin->pd->pc != uin->pc)
-        pdfdoc_changed_error(L);
-    i = luaL_checkint(L, 2);
-    len = ((Catalog *) uin->d)->numEmbeddedFiles();
-    if (i > 0 && i <= len) {
-        ef = ((Catalog *) uin->d)->embeddedFile(i - 1);
-        if (ef != NULL) {
-            uout = new_EmbFile_userdata(L);
-            uout->d = ef;
-            uout->pc = uin->pc;
-            uout->pd = uin->pd;
-        } else
-            lua_pushnil(L);
-    } else
-        lua_pushnil(L);
-    return 1;
-}
-
 m_poppler_get_INT(Catalog, numJS);
 
 static int m_Catalog_getJS(lua_State * L)
@@ -749,7 +695,6 @@ static const struct luaL_Reg Catalog_m[]
     {"findDest", m_Catalog_findDest},
     {"getDests", m_Catalog_getDests},
     {"numEmbeddedFiles", m_Catalog_numEmbeddedFiles},
-    {"embeddedFile", m_Catalog_embeddedFile},
     {"numJS", m_Catalog_numJS},
     {"getJS", m_Catalog_getJS},
     {"getOutline", m_Catalog_getOutline},
@@ -759,49 +704,6 @@ static const struct luaL_Reg Catalog_m[]
 };
 
 //**********************************************************************
-// EmbFile
-
-m_poppler_get_GOOSTRING(EmbFile, name);
-m_poppler_get_GOOSTRING(EmbFile, description);
-m_poppler_get_INT(EmbFile, size);
-m_poppler_get_GOOSTRING(EmbFile, modDate);
-m_poppler_get_GOOSTRING(EmbFile, createDate);
-m_poppler_get_GOOSTRING(EmbFile, checksum);
-m_poppler_get_GOOSTRING(EmbFile, mimeType);
-
-static int m_EmbFile_streamObject(lua_State * L)
-{
-    udstruct *uin, *uout;
-    uin = (udstruct *) luaL_checkudata(L, 1, M_EmbFile);
-    if (uin->pd != NULL && uin->pd->pc != uin->pc)
-        pdfdoc_changed_error(L);
-    uout = new_Object_userdata(L);
-    uout->d = new Object();     // automatic init to type "none"
-    ((EmbFile *) uin->d)->streamObject().copy((Object *) uout->d);
-    uout->pc = uin->pc;
-    uout->pd = uin->pd;
-    return 1;
-}
-
-m_poppler_get_BOOL(EmbFile, isOk);
-
-m_poppler__tostring(EmbFile);
-
-static const struct luaL_Reg EmbFile_m[] = {
-    {"name", m_EmbFile_name},
-    {"description", m_EmbFile_description},
-    {"size", m_EmbFile_size},
-    {"modDate", m_EmbFile_modDate},
-    {"createDate", m_EmbFile_createDate},
-    {"checksum", m_EmbFile_checksum},
-    {"mimeType", m_EmbFile_mimeType},
-    {"streamObject", m_EmbFile_streamObject},
-    {"isOk", m_EmbFile_isOk},
-    {"__tostring", m_EmbFile__tostring},
-    {NULL, NULL}                // sentinel
-};
-
-//**********************************************************************
 // Dict
 
 static int m_Dict_incRef(lua_State * L)
@@ -2683,11 +2585,9 @@ int luaopen_epdf(lua_State * L)
 {
     register_meta(Annot);
     // TODO register_meta(AnnotBorder);
-    register_meta(AnnotBorderStyle);
     register_meta(Annots);
     register_meta(Array);
     register_meta(Catalog);
-    register_meta(EmbFile);
     register_meta(Dict);
     register_meta(GooString);
     register_meta(LinkDest);