hygiene: what if $awk matches name of function?

We use the "command" command to make sure we are running an
external awk and preprocessor. For instance if someone were
to try "cppawk --awk=quote", that would be targetting the
quote function inside cppawk and not that users Awk program
that happens to be called "quote".

1 files changed, 5 insertions, 0 deletions

diff --git a/testcases b/testcases
index 3eb492d..8758398 100644
--- a/testcases
+++ b/testcases
@@ -198,3 +198,8 @@ mawk=1
 ./cppawk --prepro-only --awk=mawk gawk=__gawk__ | grep gawk
 :
 gawk=__gawk__
+--
+36:
+./cppawk --prepro=die --prepro-only x 2>&1 | grep 'not found'
+:
+./cppawk: 1: eval: die: not found