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| 5 | |
5 | |
| 6 | AC_PROG_CC |
6 | AC_PROG_CC |
| 7 | |
7 | |
| 8 | m4_include([libeio/libeio.m4]) |
8 | m4_include([libeio/libeio.m4]) |
| 9 | |
9 | |
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10 | dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required |
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11 | dnl functionality actually being present. ugh. |
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12 | AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([ |
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13 | #include <sys/mman.h> |
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14 | int main (void) |
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15 | { |
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16 | int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL); |
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17 | int a = POSIX_MADV_SEQUENTIAL; |
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18 | int b = POSIX_MADV_RANDOM; |
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19 | int c = POSIX_MADV_WILLNEED; |
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20 | int d = POSIX_MADV_DONTNEED; |
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21 | return 0; |
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22 | } |
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23 | ],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)]) |
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24 | test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) |
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25 | |
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26 | AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([ |
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27 | #define _XOPEN_SOURCE 600 |
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28 | #include <fcntl.h> |
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29 | int main (void) |
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30 | { |
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31 | int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL); |
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32 | int a = POSIX_FADV_SEQUENTIAL; |
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33 | int b = POSIX_FADV_NOREUSE; |
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34 | int c = POSIX_FADV_RANDOM; |
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35 | int d = POSIX_FADV_WILLNEED; |
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36 | int e = POSIX_FADV_DONTNEED; |
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37 | return 0; |
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38 | } |
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39 | ],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
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40 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
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41 | |
| 10 | AC_OUTPUT |
42 | AC_OUTPUT |
