fix bug for default configure

@@ -63,6 +63,13 @@ function Ubuntu_prepare()
         echo "install make success"
     fi
     
+    patch --help >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
+        echo "install patch"
+        require_sudoer "sudo apt-get install -y --force-yes patch"
+        sudo apt-get install -y --force-yes patch; ret=$?; if [[ 0 -ne $ret ]]; then return $ret; fi
+        echo "install patch success"
+    fi
+    
     autoconf --help >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
         echo "install autoconf"
         require_sudoer "sudo apt-get install -y --force-yes autoconf"
@@ -146,6 +153,13 @@ function Centos_prepare()
         echo "install make success"
     fi
     
+    patch --help >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
+        echo "install patch"
+        require_sudoer "sudo yum install -y patch"
+        sudo yum install -y patch; ret=$?; if [[ 0 -ne $ret ]]; then return $ret; fi
+        echo "install patch success"
+    fi
+    
     automake --help >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
         echo "install automake"
         require_sudoer "sudo yum install -y automake"

@@ -133,14 +133,6 @@ done
 #####################################################################################
 # apply the default value when user donot specified.
 #####################################################################################
-# if http-xxxx specified, open the SRS_HTTP_PARSER
-__compile_http_parser=NO
-if [ $SRS_HTTP_CALLBACK = YES ]; then SRS_HTTP_PARSER=YES;__compile_http_parser=YES; fi
-if [ $SRS_HTTP_SERVER = YES ]; then SRS_HTTP_PARSER=YES;__compile_http_parser=YES; fi
-if [ $SRS_HTTP_API = YES ]; then SRS_HTTP_PARSER=YES;__compile_http_parser=YES; fi
-# if no http specified, disable http parser
-if [ $__compile_http_parser = NO ]; then SRS_HTTP_PARSER=NO; fi
-
 # if transcode specified, try ffmpeg if possible.
 if [ $SRS_TRANSCODE = YES ]; then if [ $SRS_FFMPEG_TOOL = RESERVED ]; then SRS_FFMPEG_TOOL=YES; fi fi
 if [ $SRS_INGEST = YES ]; then if [ $SRS_FFMPEG_TOOL = RESERVED ]; then SRS_FFMPEG_TOOL=YES; fi fi
@@ -254,6 +246,12 @@ if [ $SRS_PI = YES ]; then
     SRS_STATIC=YES
 fi
 
+# if http-xxxx specified, open the SRS_HTTP_PARSER
+SRS_HTTP_PARSER=NO
+if [ $SRS_HTTP_CALLBACK = YES ]; then SRS_HTTP_PARSER=YES; fi
+if [ $SRS_HTTP_SERVER = YES ]; then SRS_HTTP_PARSER=YES; fi
+if [ $SRS_HTTP_API = YES ]; then SRS_HTTP_PARSER=YES; fi
+
 # parse the jobs for make
 if [[ "" -eq SRS_JOBS ]]; then 
     export SRS_JOBS="--jobs"