Make sure -w is set in mod_perl CXXFLAGS

Autogenerated bits of the code warn when building which would
otherwise break the build.

src/mod/languages/mod_perl/Makefile.am

@@ -9,6 +9,7 @@ mod_LTLIBRARIES = mod_perl.la
 perl_LTLIBRARIES = freeswitch.la
 mod_perl_la_SOURCES  = mod_perl.c freeswitch_perl.cpp mod_perl_wrap.cpp perlxsi.c
 mod_perl_la_CFLAGS   = $(AM_CFLAGS) -w
+mod_perl_la_CXXFLAGS   = $(AM_CXXFLAGS) -w
 mod_perl_la_CPPFLAGS = -DMULTIPLICITY `$(PERL) -MExtUtils::Embed -e ccopts` -DEMBED_PERL -I$(switch_srcdir)/libs/libteletone/src/ 
 mod_perl_la_LIBADD   = $(switch_builddir)/libfreeswitch.la
 mod_perl_la_LDFLAGS  = -avoid-version -module -no-undefined -shared `$(PERL) -MExtUtils::Embed -e ldopts` `$(PERL) -MConfig -e 'print $$Config{libs}'`