bugfix(kong-1.3) Linking workaround for openresty-1.15.8.1/libpcre

libpcre, if built statically using openresty, for openresty
1.15.8.1, fails to link properly, leading to errors when using
ngx.re. Upstream versions of openresty don't have this issue, but
Kong Enterprise 1.3 depends on openresty 1.15.8.1, so adding
a workaround descibed in:

openresty/lua-resty-core#258

Author: styree

kong-env.py

@@ -261,12 +261,19 @@ def download_and_extract_openresty(environment_directory, tmp_directory, config,
                          '--with-http_ssl_module', '--with-http_realip_module',
                          '--with-http_stub_status_module', '--with-http_v2_module',
                          '--with-cc-opt="-I' + path.join(environment_directory, 'include') + '"',
-                         '--with-ld-opt="-L' + path.join(environment_directory, 'lib') + '"',
                          '--with-luajit-xcflags="-DLUAJIT_NUMMODE=2"', '-j8',
                          '--with-stream_ssl_preread_module', '--with-stream_realip_module']
         if lua_kong_nginx_module_config is not None:
             shell_command.append('--add-module=' + path.join(tmp_directory, 'lua-kong-nginx-module'))
 
+        ld_opt_prefix = '--with-ld-opt="-L' + path.join(environment_directory, 'lib')
+        if config['version'] == '1.15.8.1':
+            # This openresty version builds a static libpcre poorly, so we need a workaround
+            # See - https://github.com/openresty/lua-resty-core/issues/258
+            shell_command.append(ld_opt_prefix + ' -Wl,-u,pcre_version"')
+        else:
+            shell_command.append(ld_opt_prefix + '"')
+
         if not run_command(['sh', '-c', ' '.join(shell_command)], verbose):
             logger.error('unable to configure openresty package, exiting: package=%s' % (config['package']))
             return False