From: "A. Maitland Bottoms" <bottoms@debian.org>
Subject: omit build path

Support reproducible builds by replacing reference to the build path.

--- a/gnuradio-runtime/lib/CMakeLists.txt
+++ b/gnuradio-runtime/lib/CMakeLists.txt
@@ -20,6 +20,7 @@
 message(STATUS "Loading version ${VERSION} into constants...")
 
 #Generate the constants file, now that we actually know which components will be enabled.
+string(REPLACE "${CMAKE_BINARY_DIR}" "BUILD_DIR" COMPILER_INFO "${COMPILER_INFO}")
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/constants.cc.in
                ${CMAKE_CURRENT_BINARY_DIR}/constants.cc ESCAPE_QUOTES @ONLY)
 
