[llvm-commits] [llvm] r86954 - in /llvm/trunk: cmake/config-ix.cmake include/llvm/Config/config.h.cmake

[Oscar Fuentes]

Author: ofv
Date: Wed Nov 11 23:36:09 2009
New Revision: 86954

URL: http://llvm.org/viewvc/llvm-project?rev=86954&view=rev
Log:
CMake: Pass -lm to check_symbol_exists for detecting several math
functions like floorf, ceilf, ... Add test for detecting nearbyintf.

This change was prompted by test/Transforms/SimplifyLibCalls/floor.ll

Modified:
    llvm/trunk/cmake/config-ix.cmake
    llvm/trunk/include/llvm/Config/config.h.cmake

Modified: llvm/trunk/cmake/config-ix.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/config-ix.cmake?rev=86954&r1=86953&r2=86954&view=diff

==============================================================================
--- llvm/trunk/cmake/config-ix.cmake (original)
+++ llvm/trunk/cmake/config-ix.cmake Wed Nov 11 23:36:09 2009
@@ -4,6 +4,11 @@
 include(CheckFunctionExists)
 include(CheckCXXSourceCompiles)
 
+if( UNIX )
+  # Used by check_symbol_exists:
+  set(CMAKE_REQUIRED_LIBRARIES m)
+endif()
+
 # Helper macros and functions
 macro(add_cxx_include result files)
   set(${result} "")
@@ -84,6 +89,7 @@
 check_symbol_exists(isnan math.h HAVE_ISNAN_IN_MATH_H)
 check_symbol_exists(ceilf math.h HAVE_CEILF)
 check_symbol_exists(floorf math.h HAVE_FLOORF)
+check_symbol_exists(nearbyintf math.h HAVE_NEARBYINTF)
 check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
 check_symbol_exists(malloc_zone_statistics malloc/malloc.h
                     HAVE_MALLOC_ZONE_STATISTICS)

Modified: llvm/trunk/include/llvm/Config/config.h.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Config/config.h.cmake?rev=86954&r1=86953&r2=86954&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Config/config.h.cmake (original)
+++ llvm/trunk/include/llvm/Config/config.h.cmake Wed Nov 11 23:36:09 2009
@@ -253,7 +253,7 @@
 #cmakedefine HAVE_NDIR_H ${HAVE_NDIR_H}
 
 /* Define to 1 if you have the `nearbyintf' function. */
-#undef HAVE_NEARBYINTF
+#cmakedefine HAVE_NEARBYINTF ${HAVE_NEARBYINTF}
 
 /* Define if the neat program is available */
 #cmakedefine HAVE_NEATO ${HAVE_NEATO}