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35 lines
951 B
Plaintext
35 lines
951 B
Plaintext
# ftello.m4 serial 4
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dnl Copyright (C) 2007, 2008 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_FTELLO],
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[
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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AC_REQUIRE([AC_PROG_CC])
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AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
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dnl Persuade glibc <stdio.h> to declare fseeko().
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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AC_CACHE_CHECK([for ftello], [gl_cv_func_ftello],
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[
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AC_TRY_LINK([#include <stdio.h>], [ftello (stdin);],
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[gl_cv_func_ftello=yes], [gl_cv_func_ftello=no])
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])
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if test $gl_cv_func_ftello = no; then
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HAVE_FTELLO=0
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gl_REPLACE_FTELLO
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elif test $gl_cv_var_stdin_large_offset = no; then
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gl_REPLACE_FTELLO
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fi
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])
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AC_DEFUN([gl_REPLACE_FTELLO],
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[
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AC_LIBOBJ([ftello])
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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REPLACE_FTELLO=1
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])
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