[Avida-SVN] r1698 - development

[brysonda at myxo.css.msu.edu]

Author: brysonda
Date: 2007-06-19 23:03:23 -0400 (Tue, 19 Jun 2007)
New Revision: 1698

Modified:
   development/CMakeLists.txt
Log:
This should fix the CMake build so that it will only include the -fno-fused-madd flag on platforms that accept it.

Modified: development/CMakeLists.txt
===================================================================
--- development/CMakeLists.txt	2007-06-20 02:22:38 UTC (rev 1697)
+++ development/CMakeLists.txt	2007-06-20 03:03:23 UTC (rev 1698)
@@ -38,6 +38,15 @@
     SET(COMPILER_OPTIMIZATION_FLAGS "-ffast-math -fno-rtti -funroll-loops -fstrict-aliasing -ftree-vectorize -fvisibility-inlines-hidden")
   ENDIF (CMAKE_CXX_COMPILER MATCHES ".*pathCC.*")
 
+  INCLUDE(CheckCSourceCompiles)
+  SET(CMAKE_REQUIRED_FLAGS "-mno-fused-madd")
+  CHECK_C_SOURCE_COMPILES("int main() { return 0; }" HAVE_FUSED_MADD)
+  SET(CMAKE_REQUIRED_FLAGS "")
+
+  IF(HAVE_FUSED_MADD)
+    SET(COMPILER_OPTIMIZATION_FLAGS "-mno-fused-madd ${COMPILER_OPTIMIZATION_FLAGS}")
+  ENDIF(HAVE_FUSED_MADD)
+
   # Four types of c++ compilations:
   # - debug (Debug)
   # - minimum-size release (MinSizeRel)