From 59119adedce9405ce320d4609885f734d0aae5c5 Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Fri, 18 Mar 2022 08:15:20 -0700
Subject: Add __gawk__ predefined preprocessor symbol.

---
 cppawk    |  6 +++---
 testcases | 10 ++++++++++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/cppawk b/cppawk
index 9a74cbf..d24300b 100755
--- a/cppawk
+++ b/cppawk
@@ -29,13 +29,13 @@
 
 # site configuration
 prepro=/usr/bin/cpp
-incopt=-iquote        # GNU cpp feature: use -I if unavailable
-awk=/usr/bin/gawk
+incopt=-iquote                # GNU cpp feature: use -I if unavailable
+awk=/usr/bin/gawk             # Use GNU awk
+prepro_opts="-D__gawk__=1"    # Blank out for generic or use __mawk__, etc.
 
 # globals
 awk_file=
 awk_opts=
-prepro_opts=
 tmp_file=
 delhashbang="sed -e /^#!/d"
 
diff --git a/testcases b/testcases
index 1c2e6c8..d1a9fff 100644
--- a/testcases
+++ b/testcases
@@ -83,3 +83,13 @@ BEGIN { print max(42, 73) }'
 BEGIN { print max(42, 73) }'
 :
 73
+--
+16:
+./cppawk '
+BEGIN {
+#if __gawk__
+   print "gawk"
+#endif
+}'
+:
+gawk
-- 
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