diff --git a/Makefile b/Makefile
index fca50dd..5cbb13d 100644
--- a/Makefile
+++ b/Makefile
@@ -180,6 +180,14 @@ DEF-win += -DCONFIG_TCCDIR="\"$(tccdir)/win32\""
 endif
 endif
 
+GITHASH := $(shell git rev-parse >/dev/null 2>&1 && git rev-parse --short HEAD || echo no)
+GITCOUNT := $(shell git rev-list --count release_0_9_27..HEAD || echo -1)
+
+DEF_GITINFO := -DTCC_MOB="$(GITCOUNT)"
+ifneq ($(GITHASH),no)
+DEF_GITINFO += -DTCC_GITHASH="\"$(GITHASH)$(shell git diff --quiet || echo '-mod')\""
+endif
+
 # include custom configuration (see make help)
 -include config-extra.mak
 
@@ -222,11 +230,6 @@ $(TCC_FILES) : DEFINES += -DONE_SOURCE=0
 $(X)tccpp.o : $(TCCDEFS_H)
 endif
 
-GITHASH := $(shell git rev-parse >/dev/null 2>&1 && git rev-parse --short HEAD || echo no)
-ifneq ($(GITHASH),no)
-DEF_GITHASH := -DTCC_GITHASH="\"$(GITHASH)$(shell git diff --quiet || echo '-mod')\""
-endif
-
 ifeq ($(CONFIG_debug),yes)
 CFLAGS += -g
 LDFLAGS += -g
@@ -246,7 +249,8 @@ $(X)%.o : %.c $(LIBTCC_INC)
 
 # additional dependencies
 $(X)tcc.o : tcctools.c
-$(X)tcc.o : DEFINES += $(DEF_GITHASH)
+$(X)tcc.o : DEFINES += $(DEF_GITINFO)
+$(X)tccpp.o : DEFINES += $(DEF_GITINFO)
 
 # Host Tiny C Compiler
 tcc$(EXESUF): tcc.o $(LIBTCC)
diff --git a/tccpp.c b/tccpp.c
index 897ef15..3812843 100644
--- a/tccpp.c
+++ b/tccpp.c
@@ -3712,6 +3712,7 @@ static void tcc_predefs(TCCState *s1, CString *cs, int is_asm)
 
     sscanf(TCC_VERSION, "%d.%d.%d", &a, &b, &c);
     cstr_printf(cs, "#define __TINYC__ %d\n", a*10000 + b*100 + c);
+    cstr_printf(cs, "#define __TINYC_MOB__ %d\n", TCC_MOB);
     for (a = 0; defs[a]; ++a)
         for (p = defs[a]; *p; p = strchr(p, 0) + 1)
             putdef(cs, p);