17 lines
647 B
Plaintext
17 lines
647 B
Plaintext
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AC_DEFUN([AC_C___ATTRIBUTE__],
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[
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AC_MSG_CHECKING(for __attribute__)
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AC_CACHE_VAL(ac_cv___attribute__, [
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AC_TRY_COMPILE([#include <stdlib.h>],
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[int func(int x); int foo(int x __attribute__ ((unused))) { exit(1); }],
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ac_cv___attribute__=yes, ac_cv___attribute__=no)])
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if test "$ac_cv___attribute__" = "yes"; then
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AC_DEFINE(HAVE___ATTRIBUTE__, 1, [Define to 1 if your compiler has __attribute__])
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AC_DEFINE(__UNUSED__, __attribute__((unused)), [Macro declaring a function argument to be unused])
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else
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AC_DEFINE(__UNUSED__, , [Macro declaring a function argument to be unused])
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fi
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AC_MSG_RESULT($ac_cv___attribute__)
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])
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