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authorAllen Winter <allen.winter@kdab.com>2011-06-28 17:13:05 -0400
committerAllen Winter <allen.winter@kdab.com>2011-06-28 17:13:05 -0400
commite15ffacc69242c89107afbfda6f8ece9f2b56633 (patch)
tree34bed177321c49f883d9d75616947a18f38c037f /modules/MacroPushRequiredVars.cmake
parent5c79bed7250cb2f854bfb4f20e4d266925d94b54 (diff)
parentc06badd8d431583071cad638fea082ca0776a0a3 (diff)
downloadextra-cmake-modules-e15ffacc69242c89107afbfda6f8ece9f2b56633.tar.gz
extra-cmake-modules-e15ffacc69242c89107afbfda6f8ece9f2b56633.tar.bz2
Merge branch 'allen' of /data/kde/trunk/KDE/kdelibs
Diffstat (limited to 'modules/MacroPushRequiredVars.cmake')
-rw-r--r--modules/MacroPushRequiredVars.cmake47
1 files changed, 47 insertions, 0 deletions
diff --git a/modules/MacroPushRequiredVars.cmake b/modules/MacroPushRequiredVars.cmake
new file mode 100644
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--- /dev/null
+++ b/modules/MacroPushRequiredVars.cmake
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+# this module defines two macros:
+# MACRO_PUSH_REQUIRED_VARS()
+# and
+# MACRO_POP_REQUIRED_VARS()
+# use these if you call cmake macros which use
+# any of the CMAKE_REQUIRED_XXX variables
+#
+# Usage:
+# MACRO_PUSH_REQUIRED_VARS()
+# SET(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} -DSOME_MORE_DEF)
+# CHECK_FUNCTION_EXISTS(...)
+# MACRO_POP_REQUIRED_VARS()
+
+# Copyright (c) 2006, Alexander Neundorf, <neundorf@kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+MACRO(MACRO_PUSH_REQUIRED_VARS)
+
+ IF(NOT DEFINED _PUSH_REQUIRED_VARS_COUNTER)
+ SET(_PUSH_REQUIRED_VARS_COUNTER 0)
+ ENDIF(NOT DEFINED _PUSH_REQUIRED_VARS_COUNTER)
+
+ MATH(EXPR _PUSH_REQUIRED_VARS_COUNTER "${_PUSH_REQUIRED_VARS_COUNTER}+1")
+
+ SET(_CMAKE_REQUIRED_INCLUDES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_INCLUDES})
+ SET(_CMAKE_REQUIRED_DEFINITIONS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_DEFINITIONS})
+ SET(_CMAKE_REQUIRED_LIBRARIES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_LIBRARIES})
+ SET(_CMAKE_REQUIRED_FLAGS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER} ${CMAKE_REQUIRED_FLAGS})
+ENDMACRO(MACRO_PUSH_REQUIRED_VARS)
+
+MACRO(MACRO_POP_REQUIRED_VARS)
+
+# don't pop more than we pushed
+ IF("${_PUSH_REQUIRED_VARS_COUNTER}" GREATER "0")
+
+ SET(CMAKE_REQUIRED_INCLUDES ${_CMAKE_REQUIRED_INCLUDES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
+ SET(CMAKE_REQUIRED_DEFINITIONS ${_CMAKE_REQUIRED_DEFINITIONS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
+ SET(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
+ SET(CMAKE_REQUIRED_FLAGS ${_CMAKE_REQUIRED_FLAGS_SAVE_${_PUSH_REQUIRED_VARS_COUNTER}})
+
+ MATH(EXPR _PUSH_REQUIRED_VARS_COUNTER "${_PUSH_REQUIRED_VARS_COUNTER}-1")
+ ENDIF("${_PUSH_REQUIRED_VARS_COUNTER}" GREATER "0")
+
+ENDMACRO(MACRO_POP_REQUIRED_VARS)
+