X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=CMakeLists.txt;h=83e5d31dad4f6efb9b3e2299d4ac35feb2a98e86;hb=4290b0aefec61fb4bd9469cbbdb024d31064a23e;hp=f1c406f4a288f357294e83a6a1850b36c4cab9e2;hpb=87a7ed7f400541da5441336152e3cd3657aead51;p=freeglut

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f1c406f..83e5d31 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -261,6 +261,27 @@ IF (NOT (HAVE_STDINT_H OR HAVE_INTTYPES_H))
     ENDIF()
 ENDIF()
 
+# Check for sinf/cosf/sqrtf
+# CHECK_FUNCTION_EXISTS doesn't work because check requires <math.h>
+#CHECK_FUNCTION_EXISTS(sinf      HAVE_SINF)
+#CHECK_FUNCTION_EXISTS(cosf      HAVE_COSF)
+#CHECK_FUNCTION_EXISTS(sqrtf     HAVE_SQRTF)
+INCLUDE(CheckCSourceCompiles)
+CHECK_C_SOURCE_COMPILES("
+    #include <math.h>
+    int main(){sinf(0); return 0;}
+    " HAVE_SINF
+)
+CHECK_C_SOURCE_COMPILES("
+    #include <math.h>
+    int main(){cosf(0); return 0;}
+    " HAVE_COSF
+)
+CHECK_C_SOURCE_COMPILES("
+    #include <math.h>
+    int main(){sqrtf(0); return 0;}
+    " 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.