File gv-3.7.2-libzio.dif of Package gv

--- configure.ac
+++ configure.ac	2013-02-26 17:06:18.609444764 +0000
@@ -73,6 +73,14 @@ AC_CHECK_HEADER(bzlib.h,[
   do
     AC_CHECK_LIB($lib, BZ2_bzopen, [LIBS="$LIBS -l$lib" ; break])
   done])
+AC_CHECK_HEADER(lzmadec.h, [
+  for lib in lzma lzmadec; do
+    AC_CHECK_LIB($lib, lzmadec_open, [LIBS="$LIBS -l$lib"; break])
+  done])
+ AC_CHECK_HEADER(lzma.h, [
+  for lib in lzma; do
+    AC_CHECK_LIB($lib, lzma_easy_encoder, [LIBS="$LIBS -l$lib"; break])
+  done])
 AC_CHECK_HEADER(zio.h,[
     AC_CHECK_LIB(zio, fzopen, [LIBS="$LIBS -lzio" ; AC_DEFINE(HAVE_ZIO, 1, [Have ZIO Library])],[LIBS=$savedLIBS])
   ],[LIBS=$savedLIBS])
--- src/ps.c
+++ src/ps.c	2013-02-26 16:58:04.321444640 +0000
@@ -385,10 +385,11 @@ psscan(fileP,filename,filename_raw,filen
     int ignore_dsc;             /* Derived from scanstyle.
 				   If set the document structure will be ignored.
 				*/
-    unsigned char b[3];         /* The first 3 bytes of the input file */
+    unsigned char b[5];         /* The first 3 bytes of the input file */
 
     BEGINMESSAGE(psscan)
 
+#ifndef HAVE_ZIO
     if (cmd_uncompress) {
       if ( fread(b, sizeof(char), 3, *fileP) != 3  ||   /* If ((read error) OR */
            ( memcmp(b, "\037\235", 2) != 0  &&          /*   (not compress AND */
@@ -398,6 +399,21 @@ psscan(fileP,filename,filename_raw,filen
 	cmd_uncompress=NULL;
       }
     }
+#else
+    if (cmd_uncompress) {
+      if ( fread(b, sizeof(char), 5, *fileP) != 5  ||   /* If read error OR */
+           ( memcmp(b, "\037\235", 2) != 0  &&          /*   not compress */
+             memcmp(b, "\037\236", 2) != 0  &&
+             memcmp(b, "\037\213", 2) != 0  &&          /*   not gzip */
+             memcmp(b, "BZh",      3) != 0  &&          /*   not bzip2 */
+             memcmp(b, "]\0\0\200",5) != 0  &&
+             memcmp(b, "\377LZMA", 5) != 0  &&
+             memcmp(b, "\3757zXZ", 5) != 0  )) {
+        rewind(*fileP);
+	cmd_uncompress=NULL;
+      }
+    }
+#endif
 #ifndef HAVE_ZIO
     if (cmd_uncompress) {
       struct document *retval = NULL;