Fix CMake test for std::isnan()

It used the wrong header; std::isnan() is defined in <cmath>.
2017-10-19 10:40:17 +02:00 · 2017-10-19 10:40:17 +02:00 · 7a374c43dc
commit 7a374c43dc
parent 7be1fcc32e
1 changed files with 1 additions and 1 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -343,7 +343,7 @@ SET(CMAKE_MINSIZEREL_POSTFIX "" CACHE STRING "add a postfix, usually empty on wi

 # isnan might not be real symbol, so can't check using function_exists
 check_cxx_source_compiles(
-    "#include <cstdlib>
+    "#include <cmath>
    int main() { return std::isnan(0.0);} "
    HAVE_STD_ISNAN)