| 1 | dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t, |
1 | dnl openbsd in its neverending brokenness requires stdint.h for intptr_t, |
| 2 | dnl but that header isn't very portable... |
2 | dnl but that header isn't very portable... |
| 3 | AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h]) |
3 | AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h]) |
| 4 | |
4 | |
| 5 | AC_SEARCH_LIBS( |
5 | AC_SEARCH_LIBS( |
| 6 | pthread_create, |
6 | pthread_create, |
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| 140 | int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
140 | int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
| 141 | } |
141 | } |
| 142 | ])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)]) |
142 | ])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)]) |
| 143 | test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available) |
143 | test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available) |
| 144 | |
144 | |
| 145 | dnl ############################################################################# |
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| 146 | dnl # these checks exist for the benefit of IO::AIO |
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| 147 | |
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| 148 | dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required |
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| 149 | dnl functionality actually being present. ugh. |
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| 150 | AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
145 | AC_CACHE_CHECK(for posix_close, ac_cv_posix_close, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
| 151 | #include <sys/mman.h> |
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| 152 | int main (void) |
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| 153 | { |
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| 154 | int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL); |
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| 155 | int a = POSIX_MADV_SEQUENTIAL; |
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| 156 | int b = POSIX_MADV_RANDOM; |
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| 157 | int c = POSIX_MADV_WILLNEED; |
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| 158 | int d = POSIX_MADV_DONTNEED; |
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| 159 | return 0; |
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| 160 | } |
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| 161 | ])],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)]) |
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| 162 | test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) |
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| 163 | |
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| 164 | AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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| 165 | #define _XOPEN_SOURCE 600 |
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| 166 | #include <fcntl.h> |
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| 167 | int main (void) |
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| 168 | { |
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| 169 | int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL); |
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| 170 | int a = POSIX_FADV_SEQUENTIAL; |
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| 171 | int b = POSIX_FADV_NOREUSE; |
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| 172 | int c = POSIX_FADV_RANDOM; |
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| 173 | int d = POSIX_FADV_WILLNEED; |
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| 174 | int e = POSIX_FADV_DONTNEED; |
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| 175 | return 0; |
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| 176 | } |
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| 177 | ])],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
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| 178 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
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| 179 | |
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| 180 | dnl lots of linux specifics |
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| 181 | AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h]) |
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| 182 | |
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| 183 | AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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| 184 | #include <fcntl.h> |
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| 185 | int main (void) |
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| 186 | { |
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| 187 | ssize_t res; |
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| 188 | res = splice ((int)0, (loff_t)0, (int)0, (loff_t *)0, (size_t)0, SPLICE_F_MOVE | SPLICE_F_NONBLOCK | SPLICE_F_MORE); |
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| 189 | res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK); |
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| 190 | res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK | SPLICE_F_GIFT); |
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| 191 | return 0; |
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| 192 | } |
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| 193 | ])],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)]) |
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| 194 | test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available) |
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| 195 | |
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| 196 | AC_CACHE_CHECK(for pipe2, ac_cv_pipe2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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| 197 | #include <fcntl.h> |
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| 198 | #include <unistd.h> |
146 | #include <unistd.h> |
| 199 | int res; |
147 | int res; |
| 200 | int main (void) |
148 | int main (void) |
| 201 | { |
149 | { |
| 202 | res = pipe2 (0, 0); |
150 | res = posix_close (0, 0); /* we do not need any flags */ |
| 203 | return 0; |
151 | return 0; |
| 204 | } |
152 | } |
| 205 | ]])],ac_cv_pipe2=yes,ac_cv_pipe2=no)]) |
153 | ]])],ac_cv_posix_close=yes,ac_cv_posix_close=no)]) |
| 206 | test $ac_cv_pipe2 = yes && AC_DEFINE(HAVE_PIPE2, 1, pipe2(2) is available) |
154 | test $ac_cv_posix_close = yes && AC_DEFINE(HAVE_POSIX_CLOSE, 1, posix_close(2) is available) |
| 207 | |
155 | |
| 208 | AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
156 | AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
| 209 | #include <unistd.h> |
157 | #include <unistd.h> |
| 210 | #include <sys/syscall.h> |
158 | #include <sys/syscall.h> |
| 211 | #include <linux/fs.h> |
159 | #include <linux/fs.h> |
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| 216 | return 0; |
164 | return 0; |
| 217 | } |
165 | } |
| 218 | ]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)]) |
166 | ]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)]) |
| 219 | test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available) |
167 | test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available) |
| 220 | |
168 | |
| 221 | AC_CACHE_CHECK(for copy_file_range, ac_cv_copy_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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| 222 | #include <unistd.h> |
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| 223 | #include <sys/syscall.h> |
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| 224 | /*#include <linux/copy.h>*/ |
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| 225 | int res; |
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| 226 | int main (void) |
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| 227 | { |
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| 228 | /*res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, COPY_FR_REFLINK | COPY_FR_DEDUP | COPY_FR_COPY);*/ |
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| 229 | res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, 0); |
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| 230 | return 0; |
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| 231 | } |
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| 232 | ]])],ac_cv_copy_file_range=yes,ac_cv_copy_file_range=no)]) |
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| 233 | test $ac_cv_copy_file_range = yes && AC_DEFINE(HAVE_copy_file_range, 1, copy_file_range(2) is available) |
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| 234 | |
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