26 lines
667 B
Plaintext
26 lines
667 B
Plaintext
#serial 3
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# Make sure _GNU_SOURCE is defined where necessary: as early as possible
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# for configure-time tests, as well as for every source file that includes
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# config.h.
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# From Jim Meyering.
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AC_DEFUN([AC__GNU_SOURCE],
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[
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# Make sure that _GNU_SOURCE is defined for all subsequent
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# configure-time compile tests.
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# This definition must be emitted (into confdefs.h) before any
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# test that involves compilation.
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cat >>confdefs.h <<\EOF
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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#endif
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EOF
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# Emit this code into config.h.in.
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# The ifndef is to avoid redefinition warnings.
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AH_VERBATIM([_GNU_SOURCE], [#ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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#endif])
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])
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