From f12dcd37e062f752e7a61569569b05956a37360d Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Sat, 27 Mar 2021 17:41:08 -0400
Subject: build: Consolidate math function checks

---
diff --git a/configure.ac b/configure.ac
index 379847e..85612be 100644
--- a/configure.ac
+++ b/configure.ac
@@ -47,24 +47,11 @@ AC_CHECK_FUNCS(
 if ${funcs_missing}; then
 	AC_MSG_ERROR([required functions are missing])
 fi
-AC_SEARCH_LIBS([atan2], [m], [], [
-	AC_MSG_ERROR([required functions are missing])
-])
-AC_SEARCH_LIBS([ceil], [m], [], [
-	AC_MSG_ERROR([required functions are missing])
-])
-AC_SEARCH_LIBS([cos], [m], [], [
-	AC_MSG_ERROR([required functions are missing])
-])
-AC_SEARCH_LIBS([floor], [m], [], [
-	AC_MSG_ERROR([required functions are missing])
-])
-AC_SEARCH_LIBS([fmod], [m], [], [
-	AC_MSG_ERROR([required functions are missing])
-])
-AC_SEARCH_LIBS([sin], [m], [], [
-	AC_MSG_ERROR([required functions are missing])
-])
+for func in atan2 ceil cos floor fmod sin; do
+	AC_SEARCH_LIBS([${func}], [m], [], [
+		AC_MSG_ERROR([required functions are missing])
+	])
+done
 
 AX_CFLAGS_WARN_ALL()  dnl Adds -Wall or equivalent
 AX_CHECK_COMPILE_FLAG([-Wpedantic], [AX_APPEND_FLAG([-Wpedantic])])
--
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