1 files changed, 5 insertions, 0 deletions
diff --git a/g10/gpg.h b/g10/gpg.h
index ca7699bca..bf61411f7 100644
--- a/g10/gpg.h
+++ b/g10/gpg.h
@@ -20,6 +20,11 @@
 #ifndef GNUPG_G10_GPG_H
 #define GNUPG_G10_GPG_H 
 
+/* Note, that this file should be the first one after the system
+   header files.  This is required to set the error source to the
+   correct value and may be of advantage if we ever have to do
+   special things. */
+
 #ifdef GPG_ERR_SOURCE_DEFAULT
 #error GPG_ERR_SOURCE_DEFAULT already defined
 #endif