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> |