File ca0d1a1.patch of Package tnef

From ca0d1a161dae70b6fc9a8f4802b1f3a998a350c2 Mon Sep 17 00:00:00 2001
From: Joan Karadimov <joan.karadimov@gmail.com>
Date: Fri, 15 Nov 2019 12:16:57 +0200
Subject: [PATCH] Handle missing index/rindex functions in path.c

---
 configure.ac | 2 +-
 src/path.c   | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 746342d..add5077 100644
--- a/configure.ac
+++ b/configure.ac
@@ -35,7 +35,7 @@ AC_CHECK_SIZEOF(int)
 
 dnl check for library functions
 AC_REPLACE_FUNCS(strdup getopt_long basename)
-AC_CHECK_FUNCS(strrchr memmove memset strtoul)
+AC_CHECK_FUNCS(strrchr memmove memset strtoul index rindex)
 AC_FUNC_VPRINTF
 AC_FUNC_MALLOC
 
diff --git a/src/path.c b/src/path.c
index 2f85e19..b090e2f 100644
--- a/src/path.c
+++ b/src/path.c
@@ -35,6 +35,14 @@
 #include "path.h"
 #include "debug.h"
 
+#if !HAVE_RINDEX && HAVE_STRRCHR
+#  define rindex strrchr
+#endif
+
+#if !HAVE_INDEX
+#  define index strchr
+#endif
+
 /* concatenates fname1 with fname2 to make a pathname, adds '/' as needed */
 /* strips trailing '/' */