Pullup ticket #5471 - requested by sevan

fonts/fontconfig: bugfix

Revisions pulled up:
- fonts/fontconfig/Makefile                                     1.98
- fonts/fontconfig/distinfo                                     1.56
- fonts/fontconfig/patches/patch-src_fccache.c                  1.1

---
   Module Name:    pkgsrc
   Committed By:   jperkin
   Date:           Tue May 30 16:53:14 UTC 2017

   Modified Files:
           pkgsrc/fonts/fontconfig: Makefile distinfo
   Added Files:
           pkgsrc/fonts/fontconfig/patches: patch-src_fccache.c

   Log Message:
   Apply upstream patch for https://bugs.freedesktop.org/show_bug.cgi?id=97546
   which fixes cache generation on OSX.  Raised in joyent/pkgsrc#506.

   Bump PKGREVISION.

3 files changed, 41 insertions, 2 deletions

diff --git a/fonts/fontconfig/Makefile b/fonts/fontconfig/Makefile
index 45d0d29093c..778ff362679 100644
--- a/fonts/fontconfig/Makefile
+++ b/fonts/fontconfig/Makefile
@@ -1,6 +1,7 @@
-# $NetBSD: Makefile,v 1.97 2016/09/18 13:18:20 wiz Exp $
+# $NetBSD: Makefile,v 1.97.6.1 2017/06/13 19:19:53 bsiegert Exp $
 
 DISTNAME=	fontconfig-2.12.1
+PKGREVISION=	1
 CATEGORIES=	fonts
 MASTER_SITES=	http://www.fontconfig.org/release/
 EXTRACT_SUFX=	.tar.bz2
diff --git a/fonts/fontconfig/distinfo b/fonts/fontconfig/distinfo
index 1bba141873f..89cef064f1e 100644
--- a/fonts/fontconfig/distinfo
+++ b/fonts/fontconfig/distinfo
@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.55 2016/08/19 12:52:30 wiz Exp $
+$NetBSD: distinfo,v 1.55.6.1 2017/06/13 19:19:53 bsiegert Exp $
 
 SHA1 (fontconfig-2.12.1.tar.bz2) = 30d832b754fb10a3b70ebac750a38a0275438ad8
 RMD160 (fontconfig-2.12.1.tar.bz2) = 66907dbb317309bcb5013ea45c53dbf5050e6376
@@ -9,6 +9,7 @@ SHA1 (patch-ac) = 4a0b7b55aa4b5c106fd256c4ef81df2240224803
 SHA1 (patch-af) = d351265c894738284215f0bb38d47cc1c8f28ec7
 SHA1 (patch-configure) = 4256c69b24e57d92e7b3bc9b4640d822d782ec3e
 SHA1 (patch-scandir.c) = e35f4c005f635dd0d8bb949cd32aa34f5e314200
+SHA1 (patch-src_fccache.c) = 5215a9ae314625f1f088011cb0a5f085d963ee83
 SHA1 (patch-src_fccharset.c) = f3855554b3b3cab2530b46bc1ccec6a33303de7a
 SHA1 (patch-src_fcftint.h) = d629fd7ef9713ccc56800d033ba2e09c5a9e2bff
 SHA1 (patch-src_fcint.h) = 13602cc605d7dadd2f7c30633236454bb134a50a
diff --git a/fonts/fontconfig/patches/patch-src_fccache.c b/fonts/fontconfig/patches/patch-src_fccache.c
new file mode 100644
index 00000000000..123d53e3e25
--- /dev/null
+++ b/fonts/fontconfig/patches/patch-src_fccache.c
@@ -0,0 +1,37 @@
+$NetBSD: patch-src_fccache.c,v 1.1.2.2 2017/06/13 19:19:53 bsiegert Exp $
+
+Apply upstream patch for https://bugs.freedesktop.org/show_bug.cgi?id=97546
+
+--- src/fccache.c.orig	2016-08-05 05:35:05.000000000 +0000
++++ src/fccache.c
+@@ -640,6 +640,7 @@ FcCacheOffsetsValid (FcCache *cache)
+             FcPattern		*font = FcFontSetFont (fs, i);
+             FcPatternElt	*e;
+             FcValueListPtr	 l;
++	    char                *last_offset;
+ 
+             if ((char *) font < base ||
+                 (char *) font > end - sizeof (FcFontSet) ||
+@@ -653,11 +654,17 @@ FcCacheOffsetsValid (FcCache *cache)
+             if (e->values != 0 && !FcIsEncodedOffset(e->values))
+                 return FcFalse;
+ 
+-            for (j = font->num, l = FcPatternEltValues(e); j >= 0 && l; j--, l = FcValueListNext(l))
+-                if (l->next != NULL && !FcIsEncodedOffset(l->next))
+-                    break;
+-            if (j < 0)
+-                return FcFalse;
++	    for (j = 0; j < font->num; j++)
++	    {
++		last_offset = (char *) font + font->elts_offset;
++		for (l = FcPatternEltValues(&e[j]); l; l = FcValueListNext(l))
++		{
++		    if ((char *) l < last_offset || (char *) l > end - sizeof (*l) ||
++			(l->next != NULL && !FcIsEncodedOffset(l->next)))
++			return FcFalse;
++		    last_offset = (char *) l + 1;
++		}
++	    }
+         }
+     }
+