Upgrade Perl version to latest for platforms like centos-7 that have insufficient version available

Author: craigcomstock

build-scripts/install-dependencies

@@ -78,12 +78,14 @@ check_and_install_perl()
             PERL_EXTRA_FLAGS='-Ud_nexttoward'
         fi
 
-        wget http://www.cpan.org/src/5.0/perl-5.26.1.tar.gz
-        [ `func_md5 perl-5.26.1.tar.gz` != "a7e5c531ee1719c53ec086656582ea86" ]  \
+        PERL_VERSION=5.40.0
+        PERL_MD5=8da78b1f54b99e97954066d0aaad88bc
+        wget http://www.cpan.org/src/5.0/perl-${PERL_VERSION}.tar.gz
+        [ `func_md5 perl-${PERL_VERSION}.tar.gz` != "${PERL_MD5}" ]  \
             &&  fatal "perl checksum error"
-        gzip -dc perl-5.26.1.tar.gz | tar xf -
-        cd perl-5.26.1
-        $PATCH -p1 < $BASEDIR/buildscripts/build-scripts/perl-488307ffa6.patch
+        gzip -dc perl-${PERL_VERSION}.tar.gz | tar xf -
+        cd perl-${PERL_VERSION}
+#        $PATCH -p1 < $BASEDIR/buildscripts/build-scripts/perl-488307ffa6.patch
         ./Configure -des -Dprefix=$HOME/perl-my -Dcc=gcc -Dmake=$MAKE \
             $PERL_EXTRA_FLAGS $PERL_CFLAGS $PERL_LDFLAGS $PERL_LDDLFLAGS
         $MAKE