The parser doesn't need its own implementation of assert, and having its
own interfered with including Python.h. Remove Python's assert.h.
diff --git a/PC/os2vacpp/makefile b/PC/os2vacpp/makefile
index 1c3d008..029b901 100644
--- a/PC/os2vacpp/makefile
+++ b/PC/os2vacpp/makefile
@@ -792,7 +792,7 @@
$(PY_INCLUDE)\sliceobject.h $(PY_INCLUDE)\stringobject.h \
$(PY_INCLUDE)\sysmodule.h $(PY_INCLUDE)\traceback.h $(PY_INCLUDE)\tupleobject.h
-mpzmodule.obj: $(PY_INCLUDE)\abstract.h $(PY_PARSER)\assert.h $(PY_INCLUDE)\ceval.h \
+mpzmodule.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h \
$(PY_INCLUDE)\classobject.h $(PY_INCLUDE)\cobject.h $(PY_INCLUDE)\complexobject.h \
pyconfig.h $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \
$(PY_INCLUDE)\floatobject.h $(PY_INCLUDE)\funcobject.h $(PY_INCLUDE)\import.h \
@@ -972,7 +972,7 @@
$(PY_INCLUDE)\stringobject.h $(PY_INCLUDE)\sysmodule.h $(PY_INCLUDE)\traceback.h \
$(PY_INCLUDE)\tupleobject.h
-regexpr.obj: $(PY_INCLUDE)\abstract.h $(PY_PARSER)\assert.h $(PY_INCLUDE)\ceval.h \
+regexpr.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h \
$(PY_INCLUDE)\classobject.h $(PY_INCLUDE)\cobject.h $(PY_INCLUDE)\complexobject.h \
pyconfig.h $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \
$(PY_INCLUDE)\floatobject.h $(PY_INCLUDE)\funcobject.h $(PY_INCLUDE)\import.h \
@@ -1415,7 +1415,7 @@
$(PY_INCLUDE)\sliceobject.h $(PY_INCLUDE)\stringobject.h \
$(PY_INCLUDE)\sysmodule.h $(PY_INCLUDE)\traceback.h $(PY_INCLUDE)\tupleobject.h
-longobject.obj: $(PY_INCLUDE)\abstract.h $(PY_PARSER)\assert.h $(PY_INCLUDE)\ceval.h \
+longobject.obj: $(PY_INCLUDE)\abstract.h $(PY_INCLUDE)\ceval.h \
$(PY_INCLUDE)\classobject.h $(PY_INCLUDE)\cobject.h $(PY_INCLUDE)\complexobject.h \
pyconfig.h $(PY_INCLUDE)\dictobject.h $(PY_INCLUDE)\fileobject.h \
$(PY_INCLUDE)\floatobject.h $(PY_INCLUDE)\funcobject.h $(PY_INCLUDE)\import.h \
@@ -1565,11 +1565,11 @@
$(PY_INCLUDE)\mymalloc.h $(PY_INCLUDE)\myproto.h $(PY_INCLUDE)\pgenheaders.h \
$(PY_INCLUDE)\pydebug.h $(PY_INCLUDE)\token.h
-grammar.obj: $(PY_PARSER)\assert.h $(PY_INCLUDE)\bitset.h pyconfig.h \
+grammar.obj: $(PY_INCLUDE)\bitset.h pyconfig.h \
$(PY_INCLUDE)\grammar.h $(PY_INCLUDE)\mymalloc.h $(PY_INCLUDE)\myproto.h \
$(PY_INCLUDE)\pgenheaders.h $(PY_INCLUDE)\pydebug.h $(PY_INCLUDE)\token.h
-grammar1.obj: $(PY_PARSER)\assert.h $(PY_INCLUDE)\bitset.h pyconfig.h \
+grammar1.obj: $(PY_INCLUDE)\bitset.h pyconfig.h \
$(PY_INCLUDE)\grammar.h $(PY_INCLUDE)\mymalloc.h $(PY_INCLUDE)\myproto.h \
$(PY_INCLUDE)\pgenheaders.h $(PY_INCLUDE)\pydebug.h $(PY_INCLUDE)\token.h
@@ -1590,7 +1590,7 @@
node.obj: pyconfig.h $(PY_INCLUDE)\mymalloc.h $(PY_INCLUDE)\myproto.h $(PY_INCLUDE)\node.h \
$(PY_INCLUDE)\pgenheaders.h $(PY_INCLUDE)\pydebug.h
-parser.obj: $(PY_PARSER)\assert.h $(PY_INCLUDE)\bitset.h pyconfig.h $(PY_INCLUDE)\errcode.h \
+parser.obj: $(PY_INCLUDE)\bitset.h pyconfig.h $(PY_INCLUDE)\errcode.h \
$(PY_INCLUDE)\grammar.h $(PY_INCLUDE)\mymalloc.h $(PY_INCLUDE)\myproto.h \
$(PY_INCLUDE)\node.h $(PY_PARSER)\parser.h $(PY_INCLUDE)\pgenheaders.h \
$(PY_INCLUDE)\pydebug.h $(PY_INCLUDE)\token.h
@@ -1601,7 +1601,7 @@
$(PY_INCLUDE)\pgenheaders.h $(PY_INCLUDE)\pydebug.h $(PY_INCLUDE)\token.h \
$(PY_PARSER)\tokenizer.h
-pgen.obj: $(PY_PARSER)\assert.h $(PY_INCLUDE)\bitset.h pyconfig.h $(PY_INCLUDE)\grammar.h \
+pgen.obj: $(PY_INCLUDE)\bitset.h pyconfig.h $(PY_INCLUDE)\grammar.h \
$(PY_INCLUDE)\metagrammar.h $(PY_INCLUDE)\mymalloc.h $(PY_INCLUDE)\myproto.h \
$(PY_INCLUDE)\node.h $(PY_PARSER)\pgen.h $(PY_INCLUDE)\pgenheaders.h \
$(PY_INCLUDE)\pydebug.h $(PY_INCLUDE)\token.h
diff --git a/PC/os2vacpp/makefile.omk b/PC/os2vacpp/makefile.omk
index d359726..6b90e89 100644
--- a/PC/os2vacpp/makefile.omk
+++ b/PC/os2vacpp/makefile.omk
@@ -611,7 +611,7 @@
pythonrun.h rangeobject.h sliceobject.h stringobject.h sysmodule.h \
traceback.h tupleobject.h
-mpzmodule.obj: abstract.h assert.h ceval.h classobject.h cobject.h \
+mpzmodule.obj: abstract.h ceval.h classobject.h cobject.h \
complexobject.h pyconfig.h dictobject.h fileobject.h floatobject.h \
funcobject.h import.h intobject.h intrcheck.h listobject.h \
longintrepr.h longobject.h methodobject.h modsupport.h \
@@ -716,7 +716,7 @@
pythonrun.h rangeobject.h regexpr.h sliceobject.h stringobject.h \
sysmodule.h traceback.h tupleobject.h
-regexpr.obj: abstract.h assert.h ceval.h classobject.h cobject.h \
+regexpr.obj: abstract.h ceval.h classobject.h cobject.h \
complexobject.h pyconfig.h dictobject.h fileobject.h floatobject.h \
funcobject.h import.h intobject.h intrcheck.h listobject.h \
longobject.h methodobject.h modsupport.h moduleobject.h mymalloc.h \
@@ -987,7 +987,7 @@
pythonrun.h rangeobject.h sliceobject.h stringobject.h sysmodule.h \
traceback.h tupleobject.h
-longobject.obj: abstract.h assert.h ceval.h classobject.h cobject.h \
+longobject.obj: abstract.h ceval.h classobject.h cobject.h \
complexobject.h pyconfig.h dictobject.h fileobject.h floatobject.h \
funcobject.h import.h intobject.h intrcheck.h listobject.h \
longintrepr.h longobject.h methodobject.h modsupport.h \
@@ -1076,10 +1076,10 @@
firstsets.obj: bitset.h pyconfig.h grammar.h mymalloc.h myproto.h \
pgenheaders.h pydebug.h token.h
-grammar.obj: assert.h bitset.h pyconfig.h grammar.h mymalloc.h myproto.h \
+grammar.obj: bitset.h pyconfig.h grammar.h mymalloc.h myproto.h \
pgenheaders.h pydebug.h token.h
-grammar1.obj: assert.h bitset.h pyconfig.h grammar.h mymalloc.h myproto.h \
+grammar1.obj: bitset.h pyconfig.h grammar.h mymalloc.h myproto.h \
pgenheaders.h pydebug.h token.h
intrcheck.obj: pyconfig.h intrcheck.h mymalloc.h myproto.h
@@ -1094,14 +1094,14 @@
node.obj: pyconfig.h mymalloc.h myproto.h node.h pgenheaders.h pydebug.h
-parser.obj: assert.h bitset.h pyconfig.h errcode.h grammar.h mymalloc.h \
+parser.obj: bitset.h pyconfig.h errcode.h grammar.h mymalloc.h \
myproto.h node.h parser.h pgenheaders.h pydebug.h token.h
parsetok.obj: bitset.h pyconfig.h errcode.h grammar.h mymalloc.h myproto.h \
node.h parser.h parsetok.h pgenheaders.h pydebug.h token.h \
tokenizer.h
-pgen.obj: assert.h bitset.h pyconfig.h grammar.h metagrammar.h mymalloc.h \
+pgen.obj: bitset.h pyconfig.h grammar.h metagrammar.h mymalloc.h \
myproto.h node.h pgen.h pgenheaders.h pydebug.h token.h
pgenmain.obj: bitset.h pyconfig.h grammar.h mymalloc.h myproto.h node.h \