X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=CMakeLists.txt;h=30689865888714ebf9c3af6f98f4bf1e6eceeee6;hb=18530d133238f83763d65e8384111eafe21fd382;hp=f1c406f4a288f357294e83a6a1850b36c4cab9e2;hpb=87a7ed7f400541da5441336152e3cd3657aead51;p=freeglut

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f1c406f..3068986 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -187,7 +187,10 @@ ENDIF()
 
 # lib m for math, not needed on windows
 IF (NOT WIN32)
+    # For compilation:
     LIST(APPEND LIBS m)
+    # For CHECK_FUNCTION_EXISTS:
+    LIST(APPEND CMAKE_REQUIRED_LIBRARIES m)
 ENDIF()
 
 IF(WIN32)
@@ -261,6 +264,10 @@ IF (NOT (HAVE_STDINT_H OR HAVE_INTTYPES_H))
     ENDIF()
 ENDIF()
 
+# Check for sinf/cosf/sqrtf
+CHECK_FUNCTION_EXISTS(sinf      HAVE_SINF)
+CHECK_FUNCTION_EXISTS(cosf      HAVE_COSF)
+CHECK_FUNCTION_EXISTS(sqrtf     HAVE_SQRTF)
 
 # The generated config.h is placed in the project's build directory, just to
 # ensure that all CMake-generated files are kept away from the main source tree.