- netatalk_cv_linux_sendfile=yes
- AC_MSG_CHECKING([use sendfile syscall])
- AC_ARG_ENABLE(sendfile,
- [ --disable-sendfile disable linux sendfile syscall],[
- if test x"$enableval" = x"no"; then
- netatalk_cv_linux_sendfile=no
- AC_MSG_RESULT([no])
- else
- AC_MSG_RESULT([yes])
-
- fi
- ],[
- AC_MSG_RESULT([yes])
- ]
-
- )
-
- if test x"$netatalk_cv_linux_sendfile" = "xyes"; then
- AC_CACHE_CHECK([for linux sendfile support],netatalk_cv_HAVE_SENDFILE,[
- AC_TRY_LINK([#include <sys/sendfile.h>],
-[\
-int tofd, fromfd;
-off_t offset;
-size_t total;
-ssize_t nwritten = sendfile(tofd, fromfd, &offset, total);
-],
-netatalk_cv_HAVE_SENDFILE=yes,netatalk_cv_HAVE_SENDFILE=no)])
-
-# Try and cope with broken Linux sendfile....
- AC_CACHE_CHECK([for broken linux sendfile support],netatalk_cv_HAVE_BROKEN_LINUX_SENDFILE,[
- AC_TRY_LINK([\
-#if defined(_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
-#undef _FILE_OFFSET_BITS
-#endif
-#include <sys/sendfile.h>],
-[\
-int tofd, fromfd;
-off_t offset;
-size_t total;
-ssize_t nwritten = sendfile(tofd, fromfd, &offset, total);
-],
-netatalk_cv_HAVE_BROKEN_LINUX_SENDFILE=yes,netatalk_cv_HAVE_BROKEN_LINUX_SENDFILE=no,netatalk_cv_HAVE_BROKEN_SENDFILE=cross)])
-
- if test x"$netatalk_cv_HAVE_SENDFILE" = x"yes"; then
- AC_DEFINE(HAVE_SENDFILE,1,[Whether sendfile() is available])
- AC_DEFINE(SENDFILE_FLAVOR_LINUX,1,[Whether linux sendfile() API is available])
- AC_DEFINE(WITH_SENDFILE,1,[Whether sendfile() should be used])
- elif test x"$netatalk_cv_HAVE_BROKEN_LINUX_SENDFILE" = x"yes"; then
- AC_DEFINE(SENDFILE_FLAVOR_LINUX,1,[Whether linux sendfile() API is available])
- AC_DEFINE(LINUX_BROKEN_SENDFILE_API,1,[Whether (linux) sendfile() is broken])
- AC_DEFINE(WITH_SENDFILE,1,[Whether sendfile should be used])
- else
- netatalk_cv_linux_sendfile=no
- AC_MSG_RESULT(no);
- fi
- fi