system/clamav: Fix test for zlib > 1.2.9.

Signed-off-by: Matteo Bernardini <ponce@slackbuilds.org>

system/clamav/bb111711-fix-zlib-version-check.patch

@@ -0,0 +1,28 @@
+From f0bcd186190fe6e67b3f0eaaceb7a99aa6a98865 Mon Sep 17 00:00:00 2001
+From: Steven Morgan <stevmorg@cisco.com>
+Date: Thu, 5 Jan 2017 12:30:35 -0500
+Subject: [PATCH] bb111711 - fix zlib version check - patch by Daniel J. Luke.
+
+---
+ m4/reorganization/libs/libz.m4 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/m4/reorganization/libs/libz.m4 b/m4/reorganization/libs/libz.m4
+index b5c74147b..f7b67ca10 100644
+--- a/m4/reorganization/libs/libz.m4
++++ b/m4/reorganization/libs/libz.m4
+@@ -29,9 +29,9 @@ then
+     AC_MSG_ERROR([Please install zlib and zlib-devel packages])
+ else
+ 
+-    vuln=`grep "ZLIB_VERSION \"1.2.0" $ZLIB_HOME/include/zlib.h`
++    vuln=`grep "ZLIB_VERSION \"1.2.0\"" $ZLIB_HOME/include/zlib.h`
+     if test -z "$vuln"; then
+-	vuln=`grep "ZLIB_VERSION \"1.2.1" $ZLIB_HOME/include/zlib.h`
++	vuln=`grep "ZLIB_VERSION \"1.2.1\"" $ZLIB_HOME/include/zlib.h`
+     fi
+ 
+     if test -n "$vuln"; then
+-- 
+2.11.0
+

system/clamav/clamav.SlackBuild

@@ -28,7 +28,7 @@
 
 PRGNAM=clamav
 VERSION=${VERSION:-0.99.2}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
@@ -112,6 +112,9 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# Patch from upstream
+patch -p1 < $CWD/bb111711-fix-zlib-version-check.patch
+
 # Specify the desired mirror in the update config file
 # http://www.iana.org/cctld/cctld-whois.htm
 sed -i "s/^\#DatabaseMirror.*/DatabaseMirror db.${COUNTRY}.clamav.net/" \
@@ -142,6 +145,8 @@ sed \
   -e "s/^\#ExitOnOOM/ExitOnOOM/" \
   -i etc/clamd.conf.sample
 
+autoreconf -fi
+
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
 ./configure \