cmake: make sure that gcc built-in functions are found.

2018-06-09 17:32:33 +02:00 · 2018-06-09 17:32:33 +02:00 · 104d18c333
commit 104d18c333
parent 6883249117
1 changed files with 5 additions and 0 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -27,6 +27,11 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
 endif()

 #--- perform some checks and generate the config.h ----------------------------
+
+#--- the next two lines are needed that the math functions are found ----------
+set(CMAKE_REQUIRED_INCLUDES math.h)
+set(CMAKE_REQUIRED_LIBRARIES m) 
+
 include(CheckTypeSize)
 include(CheckIncludeFiles)
 include(CheckFunctionExists)