Fix the template as well
diff --git a/templates/config.m4.template b/templates/config.m4.template
index 5847d45..f5f1d23 100644
--- a/templates/config.m4.template
+++ b/templates/config.m4.template
@@ -7,9 +7,9 @@
dnl Write more examples of tests here...
dnl # --with-grpc -> add include path
- PHP_ADD_INCLUDE(../../grpc/include)
- PHP_ADD_INCLUDE(../../grpc/src/php/ext/grpc)
- PHP_ADD_INCLUDE(../../grpc/third_party/boringssl/include)
+ PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
+ PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
+ PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/boringssl/include)
LIBS="-lpthread $LIBS"