-SAVE_CPPFLAGS="$CPPFLAGS"
-SAVE_LDFLAGS="$LDFLAGS"
-
-CPPFLAGS="$CPPFLAGS $LIBMONGOC_CPPFLAGS"
-LDFLAGS="$LDFLAGS $LIBMONGOC_LDFLAGS"
+if test "x$with_libmongoc" = "xyes"; then
+ PKG_CHECK_MODULES([LIBMONGOC], [libmongoc-1.0],
+ [with_libmongoc="yes"],
+ [with_libmongoc="no (pkg-config could not find libmongoc)"]
+ )
+fi