update PHP 7.2+ compatibility with CentOS 6 in 123.09beta01

- PHP 7.2+ requires autoconf version greater than 2.64 while centos 6's lower autoconf 2.63 version is installed. Update adds autoconf268 package support from EPEL centos 6 repo

centmin.sh

@@ -26,7 +26,7 @@ DT=$(date +"%d%m%y-%H%M%S")
 branchname='123.09beta01'
 SCRIPT_MAJORVER='1.2.3'
 SCRIPT_MINORVER='09'
-SCRIPT_INCREMENTVER='084'
+SCRIPT_INCREMENTVER='085'
 SCRIPT_VERSIONSHORT="${branchname}"
 SCRIPT_VERSION="${SCRIPT_VERSIONSHORT}.b${SCRIPT_INCREMENTVER}"
 SCRIPT_DATE='31/12/2018'
@@ -1848,6 +1848,18 @@ fi
 
     php_patches
 
+    if [[ "$CENTOS_SIX" -eq '6' ]]; then
+        # PHP 7.3.0 + centos 6 issue https://community.centminmod.com/posts/69561/
+        if [ ! -f /usr/bin/autoconf268 ]; then
+            echo "yum -q -y install autoconf268"
+            yum -q -y install autoconf268
+        fi
+        if [ -f /usr/bin/autoconf268 ]; then
+            export PHP_AUTOCONF=/usr/bin/autoconf268
+            export PHP_AUTOHEADER=/usr/bin/autoheader268
+        fi
+    fi
+
     ./buildconf --force
     mkdir fpm-build && cd fpm-build
 

inc/php_upgrade.inc

@@ -435,6 +435,18 @@ fi # PHPDIFF
 
     php_patches
 
+    if [[ "$CENTOS_SIX" -eq '6' ]]; then
+        # PHP 7.3.0 + centos 6 issue https://community.centminmod.com/posts/69561/
+        if [ ! -f /usr/bin/autoconf268 ]; then
+            echo "yum -q -y install autoconf268"
+            yum -q -y install autoconf268
+        fi
+        if [ -f /usr/bin/autoconf268 ]; then
+            export PHP_AUTOCONF=/usr/bin/autoconf268
+            export PHP_AUTOHEADER=/usr/bin/autoheader268
+        fi
+    fi
+
     ./buildconf --force
 
     if [ ! -d fpm-build ]; then