Fix minor issue with racket's install script. Improve openresty's install. Close #852

toolset/setup/linux/languages/racket.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
-RET1=$(fw_exists racket-5.3.6/bin/racket)
-RET2=$(fw_exists racket-5.3.6/collects/racket)
+RET1=$(fw_exists racket-src/bin/racket)
+RET2=$(fw_exists racket-src/collects/racket)
 if [ "$RET1" == 0 ] && [ "$RET2" == 0 ]; then 
   return 0;
 fi

toolset/setup/linux/webservers/openresty.sh

@@ -4,9 +4,9 @@ RETCODE=$(fw_exists /usr/local/openresty/nginx/sbin/nginx)
 [ ! "$RETCODE" == 0 ] || { return 0; }
 
 fw_depends nginx
-fw_get http://openresty.org/download/ngx_openresty-1.5.8.1.tar.gz
-fw_untar ngx_openresty-1.5.8.1.tar.gz
-cd ngx_openresty-1.5.8.1
-./configure --with-luajit --with-http_postgres_module
-make
-sudo make install
+fw_get http://openresty.org/download/ngx_openresty-1.5.12.1.tar.gz
+fw_untar ngx_openresty-1.5.12.1.tar.gz
+cd ngx_openresty-1.5.12.1
+./configure --with-luajit-xcflags=-DLUAJIT_NUMMODE=2 --with-cc-opt=-O2 --with-http_postgres_module -j2
+make -j2
+sudo make install