cfa0bdc64e
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65 lines
2.4 KiB
Diff
65 lines
2.4 KiB
Diff
From 5396b6b77d0248678f716038dc747d6898acb0b3 Mon Sep 17 00:00:00 2001
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From: Stephen Gallagher <sgallagh@redhat.com>
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Date: Fri, 22 Jan 2021 09:49:13 -0500
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Subject: [PATCH] Test for fsync on tty
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Signed-off-by: Stephen Gallagher <sgallagh@redhat.com>
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---
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configure.ac | 14 +++++++++++++-
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1 file changed, 13 insertions(+), 1 deletion(-)
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diff --git a/configure.ac b/configure.ac
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index 918807967473e01af6c5d78b1737c2d06f96b426..ce478adc1ea2d37c2b22eb46fc2b55d2ba49244e 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -219,10 +219,12 @@ AH_TEMPLATE([HAVE_STAT_INO],
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[Define HAVE_STAT_INO if your struct stat has st_ino and st_dev.])
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AH_TEMPLATE([HAVE_TIME_T],
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[Define HAVE_TIME_T if your system supports the "time_t" type.])
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AH_TEMPLATE([HAVE_STRERROR],
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[Define HAVE_STRERROR if you have the strerror() function.])
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+AH_TEMPLATE([HAVE_FSYNC],
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+ [Define HAVE_FSYNC if fsync() on a tty works.])
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AH_TEMPLATE([HAVE_FILENO],
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[Define HAVE_FILENO if you have the fileno() macro.])
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AH_TEMPLATE([HAVE_ERRNO],
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[Define HAVE_ERRNO if you have the errno variable.])
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AH_TEMPLATE([MUST_DEFINE_ERRNO],
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@@ -272,11 +274,11 @@ AC_MSG_CHECKING(for ANSI function prototypes)
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AC_TRY_COMPILE([], [int f(int a) { return a; }],
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[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_ANSI_PROTOS)], [AC_MSG_RESULT(no)])
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# Checks for library functions.
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AC_TYPE_SIGNAL
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-AC_CHECK_FUNCS([fchmod fsync nanosleep poll popen realpath _setjmp sigprocmask sigsetmask snprintf stat system usleep])
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+AC_CHECK_FUNCS([fchmod nanosleep poll popen realpath _setjmp sigprocmask sigsetmask snprintf stat system usleep])
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# AC_CHECK_FUNCS may not work for inline functions, so test these separately.
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AC_MSG_CHECKING(for memcpy)
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AC_TRY_LINK([
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#if HAVE_STRING_H
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@@ -319,10 +321,20 @@ AC_TRY_LINK([
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif], [static char *x; x = strerror(0);],
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[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_STRERROR)], [AC_MSG_RESULT(no)])
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+AC_MSG_CHECKING(for fsync)
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+AC_TRY_RUN([
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+#include <fcntl.h>
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+#include <unistd.h>
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+int main(void)
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+{
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+ int fd = open("/dev/tty", O_RDWR);
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+ return fsync(fd);
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+}], [AC_MSG_RESULT(yes); AC_DEFINE(HAVE_FSYNC)], [AC_MSG_RESULT(no)])
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+
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AC_MSG_CHECKING(for sys_errlist)
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AC_TRY_LINK(, [extern char *sys_errlist[]; static char **x; x = sys_errlist;],
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[AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYS_ERRLIST)], [AC_MSG_RESULT(no)])
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AC_CHECK_TYPES([sigset_t],,,[#include <signal.h>])
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--
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2.29.2
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