From 4003d9108c0254fbaafb03b33f011cd63983510f Mon Sep 17 00:00:00 2001
From: Alexander Neundorf <neundorf@kde.org>
Date: Sun, 30 Apr 2006 21:39:02 +0000
Subject: -two cmake modules to check whether a given struct or pointer has a
 specified member variable

Alex


svn path=/trunk/KDE/kdelibs/; revision=535981
---
 modules/CheckStructMember.cmake | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 modules/CheckStructMember.cmake

(limited to 'modules/CheckStructMember.cmake')

diff --git a/modules/CheckStructMember.cmake b/modules/CheckStructMember.cmake
new file mode 100644
index 00000000..fd5d3461
--- /dev/null
+++ b/modules/CheckStructMember.cmake
@@ -0,0 +1,36 @@
+# - Check if the given struct or class has the specified member variable
+# CHECK_STRUCT_MEMBER (STRUCT MEMBER HEADER VARIABLE)
+#
+#  STRUCT - the name of the struct or class you are interested in
+#  MEMBER - the member which existence you want to check
+#  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
+
+INCLUDE(CheckCXXSourceCompiles)
+
+MACRO (CHECK_STRUCT_MEMBER _STRUCT _MEMBER _HEADER _RESULT)
+   SET(_INCLUDE_FILES)
+   FOREACH (it ${_HEADER})
+      SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
+   ENDFOREACH (it)
+
+   SET(_CHECK_STRUCT_MEMBER_SOURCE_CODE "
+${_INCLUDE_FILES}
+int main()
+{
+   ${_STRUCT}* tmp;
+   tmp->${_MEMBER};
+  return 0;
+}
+")
+   CHECK_CXX_SOURCE_COMPILES("${_CHECK_STRUCT_MEMBER_SOURCE_CODE}" ${_RESULT})
+
+ENDMACRO (CHECK_STRUCT_MEMBER)
+
-- 
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