From 3620371c5c95784f52bb9b711a3c78b31c640163 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Sat, 24 Oct 2020 15:22:21 +0200
Subject: [PATCH] Bug #2036 make sure find_standard_math_library_test_program
 actually compiles (and is guaranteed to call math functions)

(cherry picked from commit ecb7bc9514b12051d050299234b2a74ac76b5a8e)
---
 cmake/FindStandardMathLibrary.cmake | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/cmake/FindStandardMathLibrary.cmake b/cmake/FindStandardMathLibrary.cmake
index 711b0e4b4..337f1b304 100644
--- a/cmake/FindStandardMathLibrary.cmake
+++ b/cmake/FindStandardMathLibrary.cmake
@@ -19,8 +19,11 @@ include(CheckCXXSourceCompiles)
 # notice the std:: is required on some platforms such as QNX
 
 set(find_standard_math_library_test_program
-"#include<cmath>
-int main() { std::sin(0.0); std::log(0.0f); }")
+"
+#include<cmath>
+int main(int argc, char **){
+  return int(std::sin(double(argc)) + std::log(double(argc)));
+}")
 
 # first try compiling/linking the test program without any linker flags