Index: trunk/ppArith/src/Makefile.am
===================================================================
--- trunk/ppArith/src/Makefile.am	(revision 15571)
+++ trunk/ppArith/src/Makefile.am	(revision 23124)
@@ -1,4 +1,14 @@
 bin_PROGRAMS = ppArith
-ppArith_CPPFLAGS = $(PSLIB_CFLAGS) $(PSMODULE_CFLAGS) $(PPSTATS_CFLAGS) $(PSPHOT_CFLAGS) $(PPARITH_CFLAGS)
+
+PPARITH_VERSION=`if [ -e ../../VERSION ]; then cat ../../VERSION; else svnversion; fi`
+PPARITH_BRANCH=`if [ -e ../../BRANCH ]; then cat ../../BRANCH; else svn info | sed -n -e '/URL:/ h' -e '/Repository Root:/ { x; H; x; s|Repository Root: \(.*\)\nURL: \1\(.*\)|\2| ; s|^/|| ; s|/[a-zA-Z]*/src.*|| ; p }'; fi`
+PPARITH_SOURCE=`if [ -e ../../SOURCE ]; then cat ../../SOURCE; else svn info | sed -n -e 's/Repository UUID: // p'; fi`
+
+# Force recompilation of ppArithVersion.c, since it gets the version information
+ppArithVersion.c: FORCE
+	touch ppArith.c
+FORCE: ;
+
+ppArith_CPPFLAGS = $(PSLIB_CFLAGS) $(PSMODULE_CFLAGS) $(PPSTATS_CFLAGS) $(PSPHOT_CFLAGS) $(PPARITH_CFLAGS) -DPPARITH_VERSION=\"$(PPARITH_VERSION)\" -DPPARITH_BRANCH=\"$(PPARITH_BRANCH)\" -DPPARITH_SOURCE=\"$(PPARITH_SOURCE)\"
 ppArith_LDFLAGS  = $(PSLIB_LIBS)   $(PSMODULE_LIBS)   $(PPSTATS_LIBS)   $(PSPHOT_LIBS)   $(PPARITH_LIBS)