Add CPP #defines for gawk_api_major_version and gawk_api_minor_version.

1 files changed, 12 insertions, 9 deletions

diff --git a/doc/gawk.texi b/doc/gawk.texi
index d1b085f0..5864346c 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -33526,15 +33526,18 @@ information about how @command{gawk} was invoked.
 @cindex extension API version
 
 The API provides both a ``major'' and a ``minor'' version number.
-The API versions are available at compile time as constants:
-
-@table @code
-@item GAWK_API_MAJOR_VERSION
-The major version of the API
-
-@item GAWK_API_MINOR_VERSION
-The minor version of the API
-@end table
+The API versions are available at compile time as C preprocessor defines
+to support conditional compilation, and as enum constants to facilitate
+debugging:
+
+@float Table,gawk-api-version
+@caption{gawk API version constants}
+@multitable @columnfractions .33 .33 .33
+@headitem API Version @tab C preprocessor define @tab enum constant
+@item Major @tab gawk_api_major_version @tab GAWK_API_MAJOR_VERSION
+@item Minor @tab gawk_api_minor_version @tab GAWK_API_MINOR_VERSION
+@end multitable
+@end float
 
 The minor version increases when new functions are added to the API. Such
 new functions are always added to the end of the API @code{struct}.