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From afab50ea468b0b44be6e8584793c8ee98045f8f8 Mon Sep 17 00:00:00 2001
From: "Martin R. Albrecht" <martinralbrecht@googlemail.com>
Date: Fri, 12 Mar 2021 09:49:45 +0000
Subject: [PATCH] we use sqrt() so link libm
fixes #22
---
configure.ac | 3 +++
1 file changed, 3 insertions(+)
diff --git a/configure.ac b/configure.ac
index 1f19d49..71ed81c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,9 @@ AC_PROG_CXX
AC_PROG_CC_C99()
+AC_SEARCH_LIBS([sqrt], [m], [], [
+ AC_MSG_ERROR([unable to find the sqrt() function])
+])
if test "$ac_cv_prog_cc_c99" = "no"; then
AC_MSG_ERROR([C99 support is required but not found.])
--
2.10.5
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