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Don't define _gnu_source if already defined.

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When using the build method of including the MPS directly into
one's own sources, that build system may already define _GNU_SOURCE
causing a warning here about re-defining it.

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 Change: 182941
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This commit is contained in:
Bruce Mitchener 2013-07-05 15:50:54 +07:00 committed by Richard Brooksby
parent 574a2eaaae
commit 9e2eef4fa0
1 changed files with 3 additions and 0 deletions
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3
mps/code/config.h
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@ -356,7 +356,10 @@
#if defined(MPS_OS_LI)
#define _XOPEN_SOURCE 500
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#endif