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http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=1222f937e14b2a6087bf95e7a7b6e7c008ee7fdb
commit 1222f937e14b2a6087bf95e7a7b6e7c008ee7fdb
Merge: e56389d 3a1c57c
Author: Vadim Zhukov <persg...@gmail.com>
AuthorDate: Mon Jul 29 04:58:06 2013 -0400
Commit: CMake Topic Stage <kwro...@kitware.com>
CommitDate: Mon Jul 29 04:58:06 2013 -0400
Merge topic 'add-cmake_reset_check_state' into next
3a1c57c Fix documentation bugs, noted by and input from neundorf@.
19de7dc Add cmake_reset_check_state() macro.
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=3a1c57cf8133783b51e05c6d8deee4b47e7a1085
commit 3a1c57cf8133783b51e05c6d8deee4b47e7a1085
Author: Vadim Zhukov <persg...@gmail.com>
AuthorDate: Mon Jul 29 12:45:29 2013 +0400
Commit: Vadim Zhukov <persg...@gmail.com>
CommitDate: Mon Jul 29 12:45:29 2013 +0400
Fix documentation bugs, noted by and input from neundorf@.
diff --git a/Modules/CMakePushCheckState.cmake
b/Modules/CMakePushCheckState.cmake
index c25e28d..b37b706 100644
--- a/Modules/CMakePushCheckState.cmake
+++ b/Modules/CMakePushCheckState.cmake
@@ -3,7 +3,8 @@
# CMAKE_POP_CHECK_STATE()
# and
# CMAKE_RESET_CHECK_STATE()
-# These macros can be used to save, restore and reset the state of the
variables
+# These macros can be used to save, restore and reset (i.e., clear contents)
+# the state of the variables
# CMAKE_REQUIRED_FLAGS, CMAKE_REQUIRED_DEFINITIONS, CMAKE_REQUIRED_LIBRARIES
# and CMAKE_REQUIRED_INCLUDES used by the various Check-files coming with
CMake,
# like e.g. check_function_exists() etc.
@@ -12,7 +13,9 @@
# but after the Find-module has been executed they should have the same value
# as they had before.
#
-# CMAKE_PUSH_CHECK_STATE() macro receives optional
+# CMAKE_PUSH_CHECK_STATE() macro receives optional argument RESET. Whether
it's specified,
+# CMAKE_PUSH_CHECK_STATE() will set all CMAKE_REQUIRED_* variables to empty
values, same
+# as CMAKE_RESET_CHECK_STATE() call will do.
#
# Usage:
# cmake_push_check_state(RESET)
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=19de7dc41505261fccf9560bacc1d8aaa7f26490
commit 19de7dc41505261fccf9560bacc1d8aaa7f26490
Author: Vadim Zhukov <persg...@gmail.com>
AuthorDate: Sun Jul 28 14:11:51 2013 +0400
Commit: Vadim Zhukov <persg...@gmail.com>
CommitDate: Sun Jul 28 14:11:51 2013 +0400
Add cmake_reset_check_state() macro.
It's acknowledged that check state should not generally nest,
so it should be cleared when used, for example, in Find* module.
Also, add optional RESET argument to cmake_push_check_state().
General idea approved by neundorf@.
diff --git a/Modules/CMakePushCheckState.cmake
b/Modules/CMakePushCheckState.cmake
index 08809bf..c25e28d 100644
--- a/Modules/CMakePushCheckState.cmake
+++ b/Modules/CMakePushCheckState.cmake
@@ -1,8 +1,9 @@
-# This module defines two macros:
+# This module defines three macros:
# CMAKE_PUSH_CHECK_STATE()
-# and
# CMAKE_POP_CHECK_STATE()
-# These two macros can be used to save and restore the state of the variables
+# and
+# CMAKE_RESET_CHECK_STATE()
+# These macros can be used to save, restore and reset the state of the
variables
# CMAKE_REQUIRED_FLAGS, CMAKE_REQUIRED_DEFINITIONS, CMAKE_REQUIRED_LIBRARIES
# and CMAKE_REQUIRED_INCLUDES used by the various Check-files coming with
CMake,
# like e.g. check_function_exists() etc.
@@ -11,9 +12,14 @@
# but after the Find-module has been executed they should have the same value
# as they had before.
#
+# CMAKE_PUSH_CHECK_STATE() macro receives optional
+#
# Usage:
-# cmake_push_check_state()
-# set(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
-DSOME_MORE_DEF)
+# cmake_push_check_state(RESET)
+# set(CMAKE_REQUIRED_DEFINITIONS -DSOME_MORE_DEF)
+# check_function_exists(...)
+# cmake_reset_check_state()
+# set(CMAKE_REQUIRED_DEFINITIONS -DANOTHER_DEF)
# check_function_exists(...)
# cmake_pop_check_state()
@@ -31,6 +37,15 @@
# License text for the above reference.)
+macro(CMAKE_RESET_CHECK_STATE)
+
+ set(CMAKE_REQUIRED_INCLUDES)
+ set(CMAKE_REQUIRED_DEFINITIONS)
+ set(CMAKE_REQUIRED_LIBRARIES)
+ set(CMAKE_REQUIRED_FLAGS)
+
+endmacro()
+
macro(CMAKE_PUSH_CHECK_STATE)
if(NOT DEFINED _CMAKE_PUSH_CHECK_STATE_COUNTER)
@@ -43,6 +58,11 @@ macro(CMAKE_PUSH_CHECK_STATE)
set(_CMAKE_REQUIRED_DEFINITIONS_SAVE_${_CMAKE_PUSH_CHECK_STATE_COUNTER}
${CMAKE_REQUIRED_DEFINITIONS})
set(_CMAKE_REQUIRED_LIBRARIES_SAVE_${_CMAKE_PUSH_CHECK_STATE_COUNTER}
${CMAKE_REQUIRED_LIBRARIES})
set(_CMAKE_REQUIRED_FLAGS_SAVE_${_CMAKE_PUSH_CHECK_STATE_COUNTER}
${CMAKE_REQUIRED_FLAGS})
+
+ if (ARGC GREATER 0 AND ARGV0 STREQUAL "RESET")
+ cmake_reset_check_state()
+ endif()
+
endmacro()
macro(CMAKE_POP_CHECK_STATE)
-----------------------------------------------------------------------
Summary of changes:
Modules/CMakePushCheckState.cmake | 33 ++++++++++++++++++++++++++++-----
1 files changed, 28 insertions(+), 5 deletions(-)
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