From 6e5c92882625c6f11bc5faf08b70023d433e12a6 Mon Sep 17 00:00:00 2001
From: Michael Vetter <jubalh@iodoru.org>
Date: Thu, 12 Dec 2019 14:57:00 +0100
Subject: [PATCH] Check for fmod() function

Instead of adding `profanity_LDADD = -lm` to Makefile.am or using
`AC_CHECK_LIB()` in configurea.c I use `AC_SEARCH_LIBS()` in case the
fmod() function is in the libc.

See https://autotools.io/autoconf/finding.html
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 63eae494..2a9dec92 100644
--- a/configure.ac
+++ b/configure.ac
@@ -168,6 +168,9 @@ PKG_CHECK_MODULES([gio], [gio-2.0], [],
     [AC_MSG_ERROR([libgio-2.0 from glib-2.0 is required for profanity])])
 
 ### Check for other profanity dependencies
+AC_SEARCH_LIBS([fmod], [m], [],
+   [AC_MSG_ERROR([math.h is required])], [])
+
 PKG_CHECK_MODULES([curl], [libcurl], [],
     [AC_CHECK_LIB([curl], [main], [],
         [AC_MSG_ERROR([libcurl is required for profanity])])])