64 lines
2.3 KiB
Plaintext
64 lines
2.3 KiB
Plaintext
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AC_DEFUN([AC_CHECK_SENDFILE],[
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AC_MSG_CHECKING([whether sendfile() is supported and what prototype it has])
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saved_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
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ac_sendfile_supported=no
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AC_TRY_LINK([#include <sys/sendfile.h>
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#include <stdio.h>],
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[sendfile(1, 1, NULL, 0);],
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[
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AC_DEFINE(HAVE_SENDFILE4_SUPPORT, 1,
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[Define this if Linux/Solaris sendfile() is supported])
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AC_MSG_RESULT([Linux sendfile()])
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ac_sendfile_supported=yes
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], [])
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if test x$ac_sendfile_supported = xno; then
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dnl Checking wether we need libsendfile
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dnl Presumably on Solaris
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AC_CHECK_LIB(sendfile, sendfile,
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[
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AC_DEFINE(HAVE_SENDFILE4_SUPPORT, 1,
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[Define this if Linux/Solaris sendfile() is supported])
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SENDFILE_LIBS="-lsendfile"
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AC_SUBST(SENDFILE_LIBS)
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AC_MSG_RESULT([Solaris sendfile()])
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ac_sendfile_supported=yes
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], [])
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fi
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if test x$ac_sendfile_supported = xno; then
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dnl Checking wether we have FreeBSD-like sendfile() support.
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AC_TRY_LINK([#include <sys/socket.h>
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#include <stdio.h>],
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[sendfile(1, 1, 0, 0, NULL, NULL, 0);],
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[
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AC_DEFINE(HAVE_SENDFILE7_SUPPORT, 1,
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[Define this if FreeBSD sendfile() is supported])
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AC_MSG_RESULT([FreeBSD sendfile()])
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ac_sendfile_supported=yes
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], [])
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fi
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if test x$ac_sendfile_supported = xno; then
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dnl Checking wether we have MacOS-like sendfile() support.
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AC_TRY_LINK([#include <sys/socket.h>
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#include <stdio.h>
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#include <sys/uio.h>],
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[sendfile(1, 1, 0, NULL, NULL, 0);],
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[
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AC_DEFINE(HAVE_SENDFILE6_SUPPORT, 1,
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[Define this if MacOS sendfile() is supported])
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AC_MSG_RESULT([MacOS sendfile()])
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ac_sendfile_supported=yes
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], [])
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fi
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CFLAGS="$saved_CFLAGS"
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if test x$ac_sendfile_supported = xno; then
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AC_MSG_RESULT([no sendfile() support, using read/send])
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fi
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])
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