FS-353: allow people to use 5 year old and with known segfault issues pcre…

FS-353: allow people to use 5 year old and with known segfault issues pcre because centos6 can't seem to use a lib less that 5 years old, use with older libs at your own risk

configure.ac

@@ -1102,7 +1102,7 @@ AM_CONDITIONAL([CURL_BUILTIN],[test "${ac_cv_use_system_curl}" != "yes"])
 
 AC_SUBST(LIBCURL_DEPS)
 
-PKG_CHECK_MODULES([PCRE], [libpcre >= 7.9])
+PKG_CHECK_MODULES([PCRE], [libpcre >= 7.8])
 PKG_CHECK_MODULES([SPEEX], [speex >= 1.2rc1 speexdsp >= 1.2rc1])
 
 AC_ARG_ENABLE(core-libedit-support,