contribs: fixed broken check

extras/contrib/bootstrap

@@ -405,12 +405,12 @@ if test "$TARGET" != "$BUILD"; then
     if test ${DISTRO} = "win32"; then
         echo "SET(CMAKE_SYSTEM_NAME Windows)" >> "${toolchain_cmake}"
     fi
-    if test ${DISTRO} = "macosx64"||"macosx32"; then
+    case "$DISTRO" in macosx*)
         echo "SET(CMAKE_SYSTEM_NAME Darwin)" >> "${toolchain_cmake}"
         echo "set(CMAKE_C_FLAGS ${CFLAGS_TUNING} ${EXTRA_CFLAGS})" >> "${toolchain_cmake}"
         echo "set(CMAKE_CXX_FLAGS ${CFLAGS_TUNING} ${EXTRA_CFLAGS})" >> "${toolchain_cmake}"
         echo "set(CMAKE_LD_FLAGS ${EXTRA_LDFLAGS})" >> "${toolchain_cmake}"
-    fi
+    esac
     echo "SET(CMAKE_C_COMPILER ${CC})" >> "${toolchain_cmake}"
     echo "SET(CMAKE_CXX_COMPILER ${CXX})" >> "${toolchain_cmake}"
     echo "SET(CMAKE_FIND_ROOT_PATH  `pwd` )" >> "${toolchain_cmake}"