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fix comment

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This commit is contained in:
Benoit Jacob 2010-12-07 02:17:15 -05:00
parent 7a7ca99a31
commit 819bcbed19
1 changed files with 2 additions and 1 deletions
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Eigen/Core
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@ -94,12 +94,13 @@
// include files
// This extern "C" works around a MINGW-w64 bug
// This extern "C" works around a MINGW-w64 compilation issue
// https://sourceforge.net/tracker/index.php?func=detail&aid=3018394&group_id=202880&atid=983354
// In essence, intrin.h is included by windows.h and also declares intrinsics (just as emmintrin.h etc. below do).
// However, intrin.h uses an extern "C" declaration, and g++ thus complains of duplicate declarations
// with conflicting linkage. The linkage for intrinsics doesn't matter, but at that stage the compiler doesn't know;
// so, to avoid compile errors when windows.h is included after Eigen/Core, ensure intrinsics are extern "C" here too.
// notice that since these are C headers, the extern "C" is theoretically needed anyways.
extern "C" {
#include <emmintrin.h>
#include <xmmintrin.h>