patch st and srs for arm build, allow user to specifies the gcc/g++

+Common subdirectories: st-1.9/docs and st-1.9.patch/docs
+Common subdirectories: st-1.9/examples and st-1.9.patch/examples
+Common subdirectories: st-1.9/extensions and st-1.9.patch/extensions
+diff -u st-1.9/Makefile st-1.9.patch/Makefile
+--- st-1.9/Makefile	2009-10-02 06:55:03.000000000 +0800
++++ st-1.9.patch/Makefile	2014-02-28 23:38:39.298697732 +0800
+@@ -57,10 +57,10 @@
+ # possible compilation options.
+ ##########################
+ 
+-CC          = cc
+-AR          = ar
+-LD          = ld
+-RANLIB      = ranlib
++CC          ?= cc
++AR          ?= ar
++LD          ?= ld
++RANLIB      ?= ranlib
+ LN          = ln
+ 
+ SHELL       = /bin/sh

@@ -25,6 +25,9 @@ x264-snapshot-20131129-2245-stable.tar.bz2 (core.138)
 tools/ccache-3.1.9.zip
     to fast build.
     
+1.st.arm.Makefile.patch
+    st编译脚本补丁，允许用户指定cc编译器。
+
 links:
     ffmpeg: 
         http://ffmpeg.org/ 

@@ -181,7 +181,9 @@ else
     echo "build st-1.9t"; 
     (
         rm -rf ${SRS_OBJS}/st-1.9 && cd ${SRS_OBJS} && 
-        unzip -q ../3rdparty/st-1.9.zip && cd st-1.9 && make linux-debug &&
+        unzip -q ../3rdparty/st-1.9.zip && cd st-1.9 && 
+        patch -p1 < ../../3rdparty/1.st.arm.Makefile.patch && 
+        make linux-debug &&
         cd .. && rm -f st && ln -sf st-1.9/obj st
     )
 fi
@@ -349,7 +351,8 @@ if [ $SRS_SSL = YES ]; then
         (
             rm -rf ${SRS_OBJS}/openssl-1.0.1f && cd ${SRS_OBJS} && 
             unzip -q ../3rdparty/openssl-1.0.1f.zip && cd openssl-1.0.1f && 
-            ./config --prefix=`pwd`/_release -no-shared && make && make install &&
+            ./config --prefix=`pwd`/_release -no-shared && 
+            make && make install &&
             cd .. && ln -sf openssl-1.0.1f/_release openssl
         )
     fi

@@ -82,10 +82,12 @@ CppStd="-ansi"
 CXXFLAGS="${CppStd} ${WarnLevel} ${GDBDebug}"
 #CXXFLAGS="${CppStd} ${WarnLevel} ${GDBDebug} ${Performance}"
 cat << END > ${SRS_OBJS}/${SRS_MAKEFILE}
-CXXFLAGS ?= ${CXXFLAGS}
+CC ?= gcc
+GCC ?= gcc
 CXX ?= g++
-LINK ?= \$(CXX)
 AR ?= ar
+CXXFLAGS = ${CXXFLAGS}
+LINK = g++
 
 .PHONY: default srs bandwidth