- (dtucker) [INSTALL configure.ac] Make zlib version check test for 1.1.4 or

   1.2.1.2 or higher.  With tim@, ok djm@

1 files changed, 20 insertions, 9 deletions

diff --git a/configure.ac b/configure.ac
index 8d8688bfb..20c8f1587 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.259 2005/04/12 02:00:18 tim Exp $
+# $Id: configure.ac,v 1.260 2005/04/24 07:52:23 dtucker Exp $
 #
 # Copyright (c) 1999-2004 Damien Miller
 #
@@ -643,29 +643,40 @@ AC_ARG_WITH(zlib-version-check,
         ]
 )
 
-AC_MSG_CHECKING(for zlib 1.1.4 or greater)
+AC_MSG_CHECKING(for possibly buggy zlib)
 AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <stdio.h>
 #include <zlib.h>
 int main()
 {
-        int a, b, c, v;
-        if (sscanf(ZLIB_VERSION, "%d.%d.%d", &a, &b, &c) != 3)
+        int a=0, b=0, c=0, d=0, n, v;
+        n = sscanf(ZLIB_VERSION, "%d.%d.%d.%d", &a, &b, &c, &d);
+        if (n != 3 && n != 4)
                 exit(1);
-        v = a*1000000 + b*1000 + c;
-        if (v >= 1001004)
+        v = a*1000000 + b*10000 + c*100 + d;
+        fprintf(stderr, "found zlib version %s (%d)\n", ZLIB_VERSION, v);
+
+        /* 1.1.4 is OK */
+        if (a == 1 && b == 1 && c >= 4)
+                exit(0);
+
+        /* 1.2.1.2 and up are OK */
+        if (v >= 1020102)
                 exit(0);
+
         exit(2);
 }
         ]])],
-        AC_MSG_RESULT(yes),
-        [ AC_MSG_RESULT(no)
+        AC_MSG_RESULT(no),
+        [ AC_MSG_RESULT(yes)
           if test -z "$zlib_check_nonfatal" ; then
                 AC_MSG_ERROR([*** zlib too old - check config.log ***
 Your reported zlib version has known security problems.  It's possible your
 vendor has fixed these problems without changing the version number.  If you
 are sure this is the case, you can disable the check by running
 "./configure --without-zlib-version-check".
-If you are in doubt, upgrade zlib to version 1.1.4 or greater.])
+If you are in doubt, upgrade zlib to version 1.2.1.2 or greater.
+See http://www.gzip.org/zlib/ for details.])
           else
                 AC_MSG_WARN([zlib version may have security problems])
           fi