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24 lines
730 B
Plaintext
24 lines
730 B
Plaintext
dnl
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dnl Check for posix_fadvise and its definitions
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dnl
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AC_ARG_ENABLE(posix-fadvise,
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AC_HELP_STRING([--disable-posix-fadvise],[do not use posix_fadvise (auto)]),,
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[enable_posix_fadvise=yes])
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if test x"$enable_posix_fadvise" != "xno" ; then
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AC_CACHE_CHECK([for posix_fadvise], [ac_cv_posix_fadvise],[
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ac_cv_posix_fadvise="no"
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE([
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#include <fcntl.h>
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],[
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posix_fadvise(0, 0, 0, POSIX_FADV_WILLNEED);
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posix_fadvise(0, 0, 0, POSIX_FADV_DONTNEED);
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],[ac_cv_posix_fadvise="yes"])
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AC_LANG_POP
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])
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if test x"$ac_cv_posix_fadvise" = "xyes" ; then
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AC_DEFINE([HAVE_POSIX_FADVISE], 1, [define if posix_advise and its definitions are available])
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fi
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fi
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