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fix linking errors with multiply defined functions

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Benoit Jacob
2010-06-18 09:01:34 -04:00
parent 9d4b16c1d1
commit f0a6d56f07
3 changed files with 22 additions and 10 deletions
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7
Eigen/src/Core/util/Macros.h
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@@ -162,6 +162,13 @@
#define EIGEN_DONT_INLINE
#endif
// this macro allows to get rid of linking errors about multiply defined functions.
// - static is not very good because it prevents definitions from different object files to be merged.
// So static causes the resulting linked executable to be bloated with multiple copies of the same function.
// - inline is not perfect either as it unwantedly hints the compiler toward inlining the function.
#define EIGEN_DECLARE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
#define EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS inline
#if (defined __GNUC__)
#define EIGEN_DEPRECATED __attribute__((deprecated))
#elif (defined _MSC_VER)