EmulatorPkg/build.sh: Detect GCC 4.5 & 4.6

Detect GCC 4.5 & 4.6, and use GCC45 and GCC46 toolchains.

Signed-off-by: jljusten
Reviewed-by: andrewfish

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12611 6f19259b-4bc3-4df7-8a09-765794883524

EmulatorPkg/build.sh

@@ -81,6 +81,20 @@ case `uname` in
         HOST_PROCESSOR=X64
         ;;
     esac
+
+    gcc_version=$(gcc -v 2>&1 | tail -1 | awk '{print $3}')
+    case $gcc_version in
+      4.5.*)
+        TARGET_TOOLS=GCC45
+        ;;
+      4.6.*)
+        TARGET_TOOLS=GCC46
+        ;;
+      *)
+        TARGET_TOOLS=GCC44
+        exit 1
+        ;;
+    esac
     ;;
 esac