emaxerrno · August 29, 2015 14:13
diff --git a/githash.h b/githash.h
 #ifndef GIT_HASH
 #define GIT_HASH "f2607d7e246549d9ea54922a87001459c0235486"
 #endif
diff --git a/Makefile b/Makefile
 a.out: test.c githash.h
 	gcc $<
 githash.h:
 	echo  -n '#ifndef GIT_HASH\n#define GIT_HASH "' > $@ && \
 	git rev-parse HEAD | tr -d "\n" >> $@ && \
 	echo  '"\n#endif' >> $@
diff --git a/post-commit b/post-commit
 #!/bin/sh
 rm -f githash.h
diff --git a/test.c b/test.c
 #include <stdio.h>
 #include "githash.h"

 int main(int argc,char** argv)
 	{
 	return fputs("Git-Version:" GIT_HASH "\n",stdout)==0;
 	}
	a.out: test.c githash.h
	gcc $<
	githash.h:
	echo -n '#ifndef GIT_HASH\n#define GIT_HASH "' > $@ && \
	git rev-parse HEAD \| tr -d "\n" >> $@ && \
	echo '"\n#endif' >> $@
	#include <stdio.h>
	#include "githash.h"

	int main(int argc,char** argv)
	{
	return fputs("Git-Version:" GIT_HASH "\n",stdout)==0;
	}