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-rw-r--r--Modules/cgen.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/Modules/cgen.py b/Modules/cgen.py
index f1e8b630b8..69ad154ab9 100644
--- a/Modules/cgen.py
+++ b/Modules/cgen.py
@@ -1,6 +1,10 @@
# Python script to parse cstubs file for gl and generate C stubs.
# usage: python cgen.py <cstubs >glmodule.c
#
+# NOTE: You must first make a python binary without the "GL" option
+# before you can run this, when building Python for the first time.
+# See comments in the Makefile.
+#
# XXX BUG return arrays generate wrong code
# XXX need to change error returns into gotos to free mallocked arrays