use cmake

.gitignore

@@ -1 +1,4 @@
 a.out
+build/
+CMakeCache.txt
+CMakeFiles

CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.7.2)
+project (dump-build-information)
+add_executable(dummy dummy.cpp )
+set_target_properties(dummy PROPERTIES COMPILE_FLAGS ${BUILD_FLAGS} -frecord-gcc-switches)
+
+add_custom_command (OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h
+	COMMAND echo \"\#define USED_FLAGS \\\"\"`readelf -p .GCC.command.line ${CMAKE_CURRENT_BINARY_DIR}/dummy | grep -v -e dummy -e "-frecord-gcc-switches" | grep -e \"\\[.*\\]\" | cut -d\\] -f2- | tr -d \"\\n\"`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h
+	COMMAND echo \"\#define GIT_VERSION \\\"\"`git describe --dirty --always --tags`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h
+	COMMAND echo \"\#define USED_COMPILER \\\"\"`${CMAKE_C_COMPILER} --version | head -n1`\\\" >> ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h  
+	DEPENDS dummy
+	)
+include_directories("${CMAKE_CURRENT_BINARY_DIR}")
+add_executable(dump-build-information main.cpp ${CMAKE_CURRENT_BINARY_DIR}/buildinformation.h  )
+

main.cpp

@@ -1,4 +1,5 @@
 #include <iostream>
+#include "buildinformation.h"
 
 void print_build_information(){
 	std::cout << "Build from revision: " << GIT_VERSION << std::endl;