From: Mark Wooding <mdw@distorted.org.uk>
Date: Mon, 10 Mar 2025 13:43:28 +0000 (+0000)
Subject: m4/mdw-decl-environ.m4: Use quadrigraphs for `#' in scripts.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/cfd/commitdiff_plain/f1fcfdb37e76be2ba5d3c52c02d1eda076fcf047?hp=3cdedddac8b10d299a189a1193bdfac448f45bd9

m4/mdw-decl-environ.m4: Use quadrigraphs for `#' in scripts.

(Should be `tetragraphs'.  Or even `tetragrammata' if you wanted to be
controversial.)
---

diff --git a/m4/mdw-decl-environ.m4 b/m4/mdw-decl-environ.m4
index 581c0c0..db84b2e 100644
--- a/m4/mdw-decl-environ.m4
+++ b/m4/mdw-decl-environ.m4
@@ -43,14 +43,14 @@ dnl -*-autoconf-*-
 AC_DEFUN([mdw_DECL_ENVIRON],
 [AC_CACHE_CHECK([for declaration of `environ'], [mdw_cv_environ],
 [AC_EGREP_CPP([\<environ\>],
-[#include <sys/types.h>
-#if HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#if STDC_HEADERS
-#include <stdlib.h>
-#include <stddef.h>
-#endif], [mdw_cv_environ=yes], [mdw_cv_environ=no])])
+[@%:@include <sys/types.h>
+@%:@if HAVE_UNISTD_H
+@%:@include <unistd.h>
+@%:@endif
+@%:@if STDC_HEADERS
+@%:@include <stdlib.h>
+@%:@include <stddef.h>
+@%:@endif], [mdw_cv_environ=yes], [mdw_cv_environ=no])])
 if test $mdw_cv_environ = yes; then
   AC_DEFINE([DECL_ENVIRON], [1],
 	    [Define if you have the `environ' vector of environment variables.])