From 34b6dbb743654fdb6edccf101c4da7e671b7a92d Mon Sep 17 00:00:00 2001
From: Sam Varshavchik
Date: Mon, 17 May 2021 22:48:17 -0400
Subject: Tolerate -Wall and -Werror

Fixes to configure scripts and code so that it compiles (hopefully
correctly) with -Wall and -Werror.

Remove support for ancient BSD stricmp and strnicmp functions.
AC_CHECK_FUNC does not work for strcasecmp and strncasecmp under
-Wall, it's simpler to remove it.
---
 threadlib/configure.ac | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'threadlib')

diff --git a/threadlib/configure.ac b/threadlib/configure.ac
index d125374..408c07c 100644
--- a/threadlib/configure.ac
+++ b/threadlib/configure.ac
@@ -76,7 +76,16 @@ AM_CONDITIONAL(HAVE_PTHREADS, test "$have_pthreads" != "no")
 
 AC_SUBST(THREADLIB)
 
-AC_CHECK_LIB(m, sqrt)
+AC_TRY_COMPILE([
+#include <math.h>
+
+double x()
+{
+    return sqrt(0);
+}],[
+], [
+   LIBS='-lm'
+])
 
 if test "$GCC" = "yes"
 then
-- 
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