| 1 | dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t, |
1 | dnl openbsd in it's 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]) |
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, |
| 7 | [pthread pthreads pthreadVC2], |
7 | [pthread pthreads pthreadVC2], |
| 8 | , |
8 | , |
| … | |
… | |
| 60 | return 0; |
60 | return 0; |
| 61 | } |
61 | } |
| 62 | ],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
62 | ],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
| 63 | test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
63 | test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
| 64 | |
64 | |
| 65 | AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([ |
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| 66 | #include <unistd.h> |
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| 67 | int main (void) |
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| 68 | { |
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| 69 | int fd = 0; |
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| 70 | size_t count = 1; |
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| 71 | char buf; |
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| 72 | off_t offset = 1; |
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| 73 | ssize_t res; |
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| 74 | res = pread (fd, &buf, count, offset); |
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| 75 | res = pwrite (fd, &buf, count, offset); |
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| 76 | return 0; |
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| 77 | } |
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| 78 | ],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) |
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| 79 | test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) |
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| 80 | |
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| 81 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
65 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
| 82 | # include <sys/types.h> |
66 | # include <sys/types.h> |
| 83 | #if __linux |
67 | #if __linux |
| 84 | # include <sys/sendfile.h> |
68 | # include <sys/sendfile.h> |
| 85 | #elif __FreeBSD__ || defined __APPLE__ |
69 | #elif __FreeBSD__ || defined __APPLE__ |
| … | |
… | |
| 121 | return 0; |
105 | return 0; |
| 122 | } |
106 | } |
| 123 | ],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
107 | ],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
| 124 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
108 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
| 125 | |
109 | |
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110 | AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([ |
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111 | #include <fcntl.h> |
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112 | int main (void) |
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113 | { |
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114 | int fd = 0; |
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115 | int mode = 0; |
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116 | off_t offset = 1; |
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117 | off_t len = 1; |
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118 | int res; |
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119 | res = fallocate (fd, mode, offset, len); |
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120 | return 0; |
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121 | } |
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122 | ],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)]) |
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123 | test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available) |
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124 | |
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125 | AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([ |
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126 | #include <unistd.h> |
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127 | #include <sys/syscall.h> |
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128 | int main (void) |
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129 | { |
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130 | int res = syscall (__NR_syncfs, (int)0); |
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131 | } |
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132 | ],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)]) |
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133 | test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available) |
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134 | |
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135 | AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([ |
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136 | #include <sys/prctl.h> |
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137 | int main (void) |
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138 | { |
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139 | char name[] = "test123"; |
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140 | int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
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141 | } |
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142 | ],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)]) |
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143 | test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available) |
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144 | |
| 126 | dnl ############################################################################# |
145 | dnl ############################################################################# |
| 127 | dnl # these checks exist for the benefit of IO::AIO |
146 | dnl # these checks exist for the benefit of IO::AIO |
| 128 | |
147 | |
| 129 | dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required |
148 | dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required |
| 130 | dnl functionality actually being present. ugh. |
149 | dnl functionality actually being present. ugh. |
| … | |
… | |
| 156 | return 0; |
175 | return 0; |
| 157 | } |
176 | } |
| 158 | ],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
177 | ],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
| 159 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
178 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
| 160 | |
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([ |
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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 | |
