[Cmake-commits] CMake branch, next, updated. v3.1.0-rc1-223-g51ef964

[Brad King]

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The branch, next has been updated
       via  51ef964615855d4fad76bf681b8c1a3f0ddb9882 (commit)
       via  8d6ba35827bc4025a39acace8b65f2de96613a8a (commit)
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- Log -----------------------------------------------------------------
http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=51ef964615855d4fad76bf681b8c1a3f0ddb9882
commit 51ef964615855d4fad76bf681b8c1a3f0ddb9882
Merge: 50ffef2 8d6ba35
Author:     Brad King <brad.king at kitware.com>
AuthorDate: Thu Oct 30 14:17:10 2014 -0400
Commit:     CMake Topic Stage <kwrobot at kitware.com>
CommitDate: Thu Oct 30 14:17:10 2014 -0400

    Merge topic 'CheckStructHasMember-avoid-breakage-on-Wall' into next
    
    8d6ba358 CheckStructHasMember: Avoid clang -Wall breakage (#15203)


http://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=8d6ba35827bc4025a39acace8b65f2de96613a8a
commit 8d6ba35827bc4025a39acace8b65f2de96613a8a
Author:     Peter Wu <peter at lekensteyn.nl>
AuthorDate: Thu Oct 30 18:49:09 2014 +0100
Commit:     Brad King <brad.king at kitware.com>
CommitDate: Thu Oct 30 14:16:06 2014 -0400

    CheckStructHasMember: Avoid clang -Wall breakage (#15203)
    
    With CMAKE_C_COMPILER=clang and CMAKE_C_FLAGS='-Wall -Werror', this test
    breaks with -Werror,-Wuninitialized.  Fix this by getting rid of the
    temporary variable.

diff --git a/Modules/CheckStructHasMember.cmake b/Modules/CheckStructHasMember.cmake
index c8949cf..de31d2c 100644
--- a/Modules/CheckStructHasMember.cmake
+++ b/Modules/CheckStructHasMember.cmake
@@ -69,8 +69,7 @@ macro (CHECK_STRUCT_HAS_MEMBER _STRUCT _MEMBER _HEADER _RESULT)
 ${_INCLUDE_FILES}
 int main()
 {
-   ${_STRUCT}* tmp;
-   (void) tmp->${_MEMBER};
+   (void)((${_STRUCT} *)0)->${_MEMBER};
    return 0;
 }
 ")

-----------------------------------------------------------------------

Summary of changes:
 Modules/CheckStructHasMember.cmake |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)


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