Update Nginx Clang 5.0.1 compiler support

llvm-toolset-7-clang package has updated from Clang 4.0.1 to 5.0.1 so make adjustments in Centmin Mod Nginx compilation routines for such support outlined at https://community.centminmod.com/threads/testing-gcc-8-clang-5-6-7-compiler-for-centmin-mod-nginx-php-fpm.13726/

centmin.sh

@@ -21,7 +21,7 @@ DT=$(date +"%d%m%y-%H%M%S")
 branchname='123.09beta01'
 SCRIPT_MAJORVER='1.2.3'
 SCRIPT_MINORVER='09'
-SCRIPT_INCREMENTVER='042'
+SCRIPT_INCREMENTVER='043'
 SCRIPT_VERSIONSHORT="${branchname}"
 SCRIPT_VERSION="${SCRIPT_VERSIONSHORT}.b${SCRIPT_INCREMENTVER}"
 SCRIPT_DATE='31/07/2018'

inc/brotli.inc

@@ -113,7 +113,7 @@ scl_install() {
         echo
         /opt/gcc8/bin/gcc --version
         /opt/gcc8/bin/g++ --version
-      elif [[ "$DEVTOOLSETSEVEN" = [yY] || "$CLANG_FOUR" = [yY] ]]; then
+      elif [[ "$DEVTOOLSETSEVEN" = [yY] || "$CLANG_FOUR" = [yY] || "$CLANG_FIVE" = [yY] ]]; then
         if [[ -z "$(rpm -qa | grep rpmforge)" ]]; then
           if [[ "$(rpm -ql devtoolset-7-gcc >/dev/null 2>&1; echo $?)" -ne '0' ]] || [[ "$(rpm -ql devtoolset-7-gcc-c++ >/dev/null 2>&1; echo $?)" -ne '0' ]] || [[ "$(rpm -ql devtoolset-7-binutils >/dev/null 2>&1; echo $?)" -ne '0' ]]; then
             time $YUMDNFBIN -y -q install devtoolset-7-gcc devtoolset-7-gcc-c++ devtoolset-7-binutils
@@ -128,10 +128,13 @@ scl_install() {
         if [[ "$CLANG_FOUR" = [yY] && ! -f /opt/rh/llvm-toolset-7/root/usr/bin/clang ]]; then
           time $YUMDNFBIN -y install devtoolset-7-runtime llvm-toolset-7-runtime devtoolset-7-libstdc++-devel llvm-toolset-7-clang llvm-toolset-7-llvm-libs llvm-toolset-7-llvm-static llvm-toolset-7-compiler-rt llvm-toolset-7-libomp llvm-toolset-7-clang-libs
         fi
+        if [[ "$CLANG_FIVE" = [yY] && ! -f /opt/rh/llvm-toolset-7/root/usr/bin/clang ]]; then
+          time $YUMDNFBIN -y install devtoolset-7-runtime llvm-toolset-7-runtime devtoolset-7-libstdc++-devel llvm-toolset-7-clang llvm-toolset-7-llvm-libs llvm-toolset-7-llvm-static llvm-toolset-7-compiler-rt llvm-toolset-7-libomp llvm-toolset-7-clang-libs
+        fi
         echo
         /opt/rh/devtoolset-7/root/usr/bin/gcc --version
         /opt/rh/devtoolset-7/root/usr/bin/g++ --version
-        if [[ "$CLANG_FOUR" = [yY] && -f /opt/rh/llvm-toolset-7/root/usr/bin/clang ]]; then
+        if [[ "$CLANG_FOUR" = [yY] && -f /opt/rh/llvm-toolset-7/root/usr/bin/clang || "$CLANG_FIVE" = [yY] && -f /opt/rh/llvm-toolset-7/root/usr/bin/clang ]]; then
           /opt/rh/llvm-toolset-7/root/usr/bin/clang -v
         fi
         # if [[ -f /opt/rh/llvm-toolset-7/root/usr/bin/clang++ ]]; then

inc/nginx_configure.inc

@@ -2426,9 +2426,11 @@ if [[ "$CENTOS_SEVEN" = '7' && "$CLANG_FOUR" = [yY] ]]; then
   else
     CLANG_NEWBIN='/opt/sbin/llvm-release_40/bin/clang'
   fi
-elif [[ "$CENTOS_SEVEN" = '7' && "$CLANG_FIVE" = [yY] ]]; then
+elif [[ "$CENTOS_SEVEN" = '7' && "$CLANG_FIVE" = [yY] && -f /opt/rh/llvm-toolset-7/root/usr/bin/clang ]]; then
+  CLANG_NEWBIN='/opt/rh/llvm-toolset-7/root/usr/bin/clang'
+elif [[ "$CENTOS_SEVEN" = '7' && "$CLANG_FIVE" = [yY] && -f /opt/sbin/llvm-release_50/bin/clang ]]; then
   CLANG_NEWBIN='/opt/sbin/llvm-release_50/bin/clang'
-elif [[ "$CENTOS_SEVEN" = '7' && "$CLANG_SIX" = [yY] ]]; then
+elif [[ "$CENTOS_SEVEN" = '7' && "$CLANG_SIX" = [yY] && -f /opt/sbin/llvm-release_60/bin/clang ]]; then
   CLANG_NEWBIN='/opt/sbin/llvm-release_60/bin/clang'
 elif [[ "$CENTOS_SEVEN" = '7' && "$CLANG_MASTER" = [yY] ]]; then
   CLANG_NEWBIN='/opt/sbin/llvm-release_master/bin/clang'