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-rw-r--r--gl/m4/lseek.m471
1 files changed, 0 insertions, 71 deletions
diff --git a/gl/m4/lseek.m4 b/gl/m4/lseek.m4
deleted file mode 100644
index 627e772..0000000
--- a/gl/m4/lseek.m4
+++ /dev/null
@@ -1,71 +0,0 @@
-# lseek.m4 serial 10
-dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_LSEEK],
-[
- AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
-
- AC_REQUIRE([AC_CANONICAL_HOST])
- AC_REQUIRE([AC_PROG_CC])
- AC_CHECK_HEADERS_ONCE([unistd.h])
- AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe],
- [case "$host_os" in
- mingw*)
- dnl Native Windows.
- dnl The result of lseek (fd, (off_t)0, SEEK_CUR) or
- dnl SetFilePointer(handle, 0, NULL, FILE_CURRENT)
- dnl for a pipe depends on the environment: In a Cygwin 1.5
- dnl environment it succeeds (wrong); in a Cygwin 1.7 environment
- dnl it fails with a wrong errno value.
- gl_cv_func_lseek_pipe=no
- ;;
- *)
- if test $cross_compiling = no; then
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-#include <sys/types.h> /* for off_t */
-#include <stdio.h> /* for SEEK_CUR */
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#else /* on Windows with MSVC */
-# include <io.h>
-#endif
-]], [[
- /* Exit with success only if stdin is seekable. */
- return lseek (0, (off_t)0, SEEK_CUR) < 0;
-]])],
- [if test -s conftest$ac_exeext \
- && ./conftest$ac_exeext < conftest.$ac_ext \
- && test 1 = "`echo hi \
- | { ./conftest$ac_exeext; echo $?; cat >/dev/null; }`"; then
- gl_cv_func_lseek_pipe=yes
- else
- gl_cv_func_lseek_pipe=no
- fi
- ],
- [gl_cv_func_lseek_pipe=no])
- else
- AC_COMPILE_IFELSE(
- [AC_LANG_SOURCE([[
-#if defined __BEOS__
-/* BeOS mistakenly return 0 when trying to seek on pipes. */
- Choke me.
-#endif]])],
- [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])
- fi
- ;;
- esac
- ])
- if test $gl_cv_func_lseek_pipe = no; then
- REPLACE_LSEEK=1
- AC_DEFINE([LSEEK_PIPE_BROKEN], [1],
- [Define to 1 if lseek does not detect pipes.])
- fi
-
- AC_REQUIRE([gl_SYS_TYPES_H])
- if test $WINDOWS_64_BIT_OFF_T = 1; then
- REPLACE_LSEEK=1
- fi
-])