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move the macro for AC_SENDFILE into the m4 directory

This commit is contained in:
Isaac Connor 2015-03-27 15:15:55 -04:00
parent 6114acdadf
commit ef340255d3
1 changed files with 63 additions and 0 deletions
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63
m4/ac_check_sendfile.m4 Normal file
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AC_DEFUN([AC_CHECK_SENDFILE],[
AC_MSG_CHECKING([whether sendfile() is supported and what prototype it has])
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
ac_sendfile_supported=no
AC_TRY_LINK([#include <sys/sendfile.h>
#include <stdio.h>],
[sendfile(1, 1, NULL, 0);],
[
AC_DEFINE(HAVE_SENDFILE4_SUPPORT, 1,
[Define this if Linux/Solaris sendfile() is supported])
AC_MSG_RESULT([Linux sendfile()])
ac_sendfile_supported=yes
], [])
if test x$ac_sendfile_supported = xno; then
dnl Checking wether we need libsendfile
dnl Presumably on Solaris
AC_CHECK_LIB(sendfile, sendfile,
[
AC_DEFINE(HAVE_SENDFILE4_SUPPORT, 1,
[Define this if Linux/Solaris sendfile() is supported])
SENDFILE_LIBS="-lsendfile"
AC_SUBST(SENDFILE_LIBS)
AC_MSG_RESULT([Solaris sendfile()])
ac_sendfile_supported=yes
], [])
fi
if test x$ac_sendfile_supported = xno; then
dnl Checking wether we have FreeBSD-like sendfile() support.
AC_TRY_LINK([#include <sys/socket.h>
#include <stdio.h>],
[sendfile(1, 1, 0, 0, NULL, NULL, 0);],
[
AC_DEFINE(HAVE_SENDFILE7_SUPPORT, 1,
[Define this if FreeBSD sendfile() is supported])
AC_MSG_RESULT([FreeBSD sendfile()])
ac_sendfile_supported=yes
], [])
fi
if test x$ac_sendfile_supported = xno; then
dnl Checking wether we have MacOS-like sendfile() support.
AC_TRY_LINK([#include <sys/socket.h>
#include <stdio.h>
#include <sys/uio.h>],
[sendfile(1, 1, 0, NULL, NULL, 0);],
[
AC_DEFINE(HAVE_SENDFILE6_SUPPORT, 1,
[Define this if MacOS sendfile() is supported])
AC_MSG_RESULT([MacOS sendfile()])
ac_sendfile_supported=yes
], [])
fi
CFLAGS="$saved_CFLAGS"
if test x$ac_sendfile_supported = xno; then
AC_MSG_RESULT([no sendfile() support, using read/send])
fi
])