Use xcrun to find C++ compiler.

Author: iosdevzone

idz_configure

@@ -75,9 +75,8 @@ IDZ_FLAGS="-isysroot $IDZ_SDK_PATH -arch $IDZ_ARCH -m$IDZ_IOS_VERSION"
 IDZ_PLATFORM_BIN_PATH=$IDZ_PLATFORM_PATH/usr/bin
 
 CC=`xcrun -sdk $IDZ_SDK_PLATFORM$IDZ_SDK_VERSION -find clang`
-echo "idz_build64:CC=$CC"
+CXX=`xcrun -sdk $IDZ_SDK_PLATFORM$IDZ_SDK_VERSION -find clang++`
 
-CXX=$IDZ_PLATFORM_BIN_PATH/clang++
 CFLAGS=$IDZ_FLAGS
 CXXFLAGS=$IDZ_FLAGS
 LDFLAGS=$IDZ_FLAGS