File 04_fix-abs-gcc-7.patch of Package ufraw

Description: fix compilation in GCC 7
 change some variables to int instead of unsigned so that calls to abs are no
 longer ambiguous under GCC7
Author: Ken Moffat
Origin: https://sourceforge.net/p/ufraw/mailman/message/35843737/
Bug-Debian: https://bugs.debian.org/853692

--- ufraw-0.22.orig/dcraw.cc
+++ ufraw-0.22/dcraw.cc
@@ -8769,8 +8769,8 @@ void CLASS identify()
       "Nikon", "Nokia", "Olympus", "Pentax", "Phase One", "Ricoh",
       "Samsung", "Sigma", "Sinar", "Sony" };
   char head[32], *cp;
-  unsigned fsize, i, c;
-  int hlen, flen, zero_fsize=1;
+  unsigned fsize;
+  int hlen, flen, zero_fsize=1, i, c;
   struct jhead jh;
 
   tiff_flip = flip = filters = UINT_MAX;	/* unknown */