adding makefile snippet to generate enums and marshal stuff

Original commit message from CVS:
adding makefile snippet to generate enums and marshal stuff
parent ab32709a
2004-02-03 Thomas Vander Stichele <thomas at apestaart dot org>
* glib-gen.mak: added; used to generate enums and marshal code
2004-01-13 Thomas Vander Stichele <thomas at apestaart dot org>
* gettext.patch: added; used by autogen.sh to make sure
......
# these are the variables your Makefile.am should set
# the example is based on the colorbalance interface
#glib_enum_headers=$(colorbalance_headers)
#glib_enum_define=GST_COLOR_BALANCE
#glib_enum_prefix=gst_color_balance
#glib_root=colorbalance
# these are all the rules generating the relevant files
%-marshal.h: %-marshal.list
glib-genmarshal --header --prefix=$(glib_enum_prefix)_marshal $^ > $*-marshal.h.tmp
mv $*-marshal.h.tmp $*-marshal.h
%-marshal.c: %-marshal.list
echo "#include \"$*-marshal.h\"" >> $*-marshal.c.tmp
glib-genmarshal --body --prefix=$(glib_enum_prefix)_marshal $^ >> $*-marshal.c.tmp
mv $*-marshal.c.tmp $*-marshal.c
%-enumtypes.h: $(glib_enum_headers)
glib-mkenums \
--fhead "#ifndef __$(glib_enum_define)_ENUM_TYPES_H__\n#define __$(glib_enum_define)_ENUM_TYPES_H__\n\n#include <glib-object.h>\n\nG_BEGIN_DECLS\n" \
--fprod "/* enumerations from \"@filename@\" */\n" \
--vhead "GType @enum_name@_get_type (void);\n#define GST_TYPE_@ENUMSHORT@ (@enum_name@_get_type())\n" \
--ftail "G_END_DECLS\n\n#endif /* __$(glib_enum_define)_ENUM_TYPES_H__ */" \
$^ > $@
%-enumtypes.c: $(glib_enum_headers)
@if test "x$(glib_enum_headers)" == "x"; then echo "ERROR: glib_enum_headers is empty, please fix Makefile"; exit 1; fi
glib-mkenums \
--fhead "#include <$*.h>" \
--fprod "\n/* enumerations from \"@filename@\" */" \
--vhead "GType\n@enum_name@_get_type (void)\n{\n static GType etype = 0;\n if (etype == 0) {\n static const G@Type@Value values[] = {" \
--vprod " { @VALUENAME@, \"@VALUENAME@\", \"@valuenick@\" }," \
--vtail " { 0, NULL, NULL }\n };\n etype = g_@type@_register_static (\"@EnumName@\", values);\n }\n return etype;\n}\n" \
$^ > $@
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