ensure that Python.h gets included before any system headers

git-svn-id: https://linkchecker.svn.sourceforge.net/svnroot/linkchecker/trunk/linkchecker@1750 e7d03fd6-7b0d-0410-9947-9c21f3af8025

linkcheck/HtmlParser/Makefile

@@ -1,8 +1,8 @@
 # this parser needs flex >= 2.5.xx from http://lex.sf.net/
 # for reentrant bison parser support!
-FLEX=flex
-PYVER=2.3
-PYTHON=python$(PYVER)
+FLEX = flex
+PYVER = 2.3
+PYTHON = python$(PYVER)
 
 all: htmllex.c htmlparse.c
 
@@ -16,6 +16,7 @@ htmllex.l:	htmlparse.h
 
 htmllex.c:	htmllex.l htmlsax.h
 	$(FLEX) htmllex.l
+	awk -f fixincludes.awk htmllex.c > htmllex.c.fixed; mv -f htmllex.c.fixed htmllex.c
 
 clean:
 	rm -f htmlparse.c htmlparse.h htmllex.c *.o *.so *.pyc *.pyo *.output

linkcheck/HtmlParser/fixincludes.awk

@@ -0,0 +1,7 @@
+# Add htmlsax.h include as first line of file. This is needed to let
+# Python.h be included before any system headers.
+# See also http://docs.python.org/api/includes.html
+BEGIN {
+    print "#include \"htmlsax.h\"";
+}
+{ print; }

linkcheck/HtmlParser/htmllex.c

@@ -1,3 +1,4 @@
+#include "htmlsax.h"
 #line 2 "htmllex.c"
 
 #line 4 "htmllex.c"