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Comparing libeio/libeio.m4 (file contents):
Revision 1.15 by root, Thu Jul 7 22:37:11 2011 UTC vs.
Revision 1.16 by root, Sun Jul 24 03:32:54 2011 UTC

1dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t, 1dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t,
2dnl but that header isn't very portable... 2dnl but that header isn't very portable...
3AC_CHECK_HEADERS([stdint.h]) 3AC_CHECK_HEADERS([stdint.h sys/syscall.h])
4 4
5AC_SEARCH_LIBS( 5AC_SEARCH_LIBS(
6 pthread_create, 6 pthread_create,
7 [pthread pthreads pthreadVC2], 7 [pthread pthreads pthreadVC2],
8 , 8 ,
… …
136 return 0; 136 return 0;
137} 137}
138],ac_cv_fallocate=yes,ac_cv_fallocate=no)]) 138],ac_cv_fallocate=yes,ac_cv_fallocate=no)])
139test $ac_cv_fallocate = yes && AC_DEFINE(HAVE_FALLOCATE, 1, fallocate(2) is available) 139test $ac_cv_fallocate = yes && AC_DEFINE(HAVE_FALLOCATE, 1, fallocate(2) is available)
140 140
141AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([
142#include <unistd.h>
143#include <sys/syscall.h>
144int main (void)
145{
146 int res = syscall (__NR_syncfs, (int)0);
147}
148],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)])
149test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available)
150
141dnl ############################################################################# 151dnl #############################################################################
142dnl # these checks exist for the benefit of IO::AIO 152dnl # these checks exist for the benefit of IO::AIO
143 153
144dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required 154dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required
145dnl functionality actually being present. ugh. 155dnl functionality actually being present. ugh.

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