[geos-commits] r2883 - trunk/cmake/modules

[svn_geos at osgeo.org]

Author: mloskot
Date: 2010-01-22 18:52:24 -0500 (Fri, 22 Jan 2010)
New Revision: 2883

Added:
   trunk/cmake/modules/CheckPrototypeExists.cmake
Log:
Added CheckPrototypeExists.cmake module - imported from KDE/kdelibs tree

Added: trunk/cmake/modules/CheckPrototypeExists.cmake
===================================================================
--- trunk/cmake/modules/CheckPrototypeExists.cmake	                        (rev 0)
+++ trunk/cmake/modules/CheckPrototypeExists.cmake	2010-01-22 23:52:24 UTC (rev 2883)
@@ -0,0 +1,43 @@
+# - Check if the prototype for a function exists.
+# CHECK_PROTOTYPE_EXISTS (FUNCTION HEADER VARIABLE)
+#
+#  FUNCTION - the name of the function you are looking for
+#  HEADER - the header(s) where the prototype should be declared
+#  VARIABLE - variable to store the result
+#
+# The following variables may be set before calling this macro to
+# modify the way the check is run:
+#
+#  CMAKE_REQUIRED_FLAGS = string of compile command line flags
+#  CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
+#  CMAKE_REQUIRED_INCLUDES = list of include directories
+
+# Copyright (c) 2006, Alexander Neundorf, <neundorf at kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+# Source: KDE/kdelibs
+# <http://websvn.kde.org/trunk/KDE/kdelibs/cmake/modules/CheckPrototypeExists.cmake?pathrev=776742>
+#
+INCLUDE(CheckCXXSourceCompiles)
+
+MACRO(CHECK_PROTOTYPE_EXISTS _SYMBOL _HEADER _RESULT)
+  SET(_INCLUDE_FILES)
+  FOREACH (it ${_HEADER})
+    SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
+  ENDFOREACH (it)
+  
+  SET(_CHECK_PROTO_EXISTS_SOURCE_CODE "
+${_INCLUDE_FILES}
+int main()
+{
+#ifndef ${_SYMBOL}
+    int i = sizeof(&${_SYMBOL});
+#endif
+    return 0;
+}
+")
+  CHECK_CXX_SOURCE_COMPILES("${_CHECK_PROTO_EXISTS_SOURCE_CODE}" ${_RESULT})
+ENDMACRO(CHECK_PROTOTYPE_EXISTS _SYMBOL _HEADER _RESULT)
+