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These files have been created by running ./build-aux/bootstrap with Gnulib as at commit 99ce3a004a2974c71f510f5df5bc6be7e2811d30 (with a date stamp of Tue Jan 2 09:19:44 2024 -0800), Autoconf 2.71, Automake 1.16.5, Gettext 0.21 and pkgconf 1.8.1.
256 lines
12 KiB
Plaintext
256 lines
12 KiB
Plaintext
# stdio_h.m4 serial 63
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dnl Copyright (C) 2007-2024 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_STDIO_H_EARLY],
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[
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dnl Defining __USE_MINGW_ANSI_STDIO to 1 must be done early, because
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dnl the results of several configure tests depend on it: The tests
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dnl - checking whether snprintf returns a byte count as in C99...
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dnl - checking whether snprintf truncates the result as in C99...
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dnl - checking whether printf supports the 'F' directive...
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dnl - checking whether printf supports the grouping flag...
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dnl - checking whether printf supports the zero flag correctly...
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dnl - checking whether printf supports infinite 'double' arguments...
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dnl - checking whether printf supports large precisions...
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dnl report 'yes' if __USE_MINGW_ANSI_STDIO is 1 but 'no' if
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dnl __USE_MINGW_ANSI_STDIO is not set.
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AH_VERBATIM([MINGW_ANSI_STDIO],
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[/* Use GNU style printf and scanf. */
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#ifndef __USE_MINGW_ANSI_STDIO
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# undef __USE_MINGW_ANSI_STDIO
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#endif
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])
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AC_DEFINE([__USE_MINGW_ANSI_STDIO])
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])
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AC_DEFUN_ONCE([gl_STDIO_H],
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[
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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gl_NEXT_HEADERS([stdio.h])
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dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and
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dnl inttypes.h behave like gnu instead of system; we must give our
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dnl printf wrapper the right attribute to match.
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AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros],
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[gl_cv_func_printf_attribute_flavor],
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#define __STDC_FORMAT_MACROS 1
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#include <stdio.h>
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#include <inttypes.h>
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/* For non-mingw systems, compilation will trivially succeed.
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For mingw, compilation will succeed for older mingw (system
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printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */
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#if (defined _WIN32 && ! defined __CYGWIN__) && \
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(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
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extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1];
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#endif
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]])], [gl_cv_func_printf_attribute_flavor=system],
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[gl_cv_func_printf_attribute_flavor=gnu])])
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if test "$gl_cv_func_printf_attribute_flavor" = gnu; then
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AC_DEFINE([GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU], [1],
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[Define to 1 if printf and friends should be labeled with
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attribute "__gnu_printf__" instead of "__printf__"])
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fi
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dnl For defining _PRINTF_NAN_LEN_MAX.
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gl_MUSL_LIBC
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dnl This ifdef is an optimization, to avoid performing a configure check whose
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dnl result is not used. But it does not make the test of
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dnl GNULIB_STDIO_H_NONBLOCKING or GNULIB_NONBLOCKING redundant.
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m4_ifdef([gl_NONBLOCKING_IO], [
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gl_NONBLOCKING_IO
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if test $gl_cv_have_nonblocking != yes; then
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REPLACE_STDIO_READ_FUNCS=1
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fi
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])
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dnl This ifdef is an optimization, to avoid performing a configure check whose
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dnl result is not used. But it does not make the test of
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dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant.
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m4_ifdef([gl_SIGNAL_SIGPIPE], [
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gl_SIGNAL_SIGPIPE
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if test $gl_cv_header_signal_h_SIGPIPE != yes; then
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REPLACE_STDIO_WRITE_FUNCS=1
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fi
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])
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dnl This ifdef is an optimization, to avoid performing a configure check whose
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dnl result is not used. But it does not make the test of
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dnl GNULIB_STDIO_H_NONBLOCKING or GNULIB_NONBLOCKING redundant.
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m4_ifdef([gl_NONBLOCKING_IO], [
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gl_NONBLOCKING_IO
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if test $gl_cv_have_nonblocking != yes; then
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REPLACE_STDIO_WRITE_FUNCS=1
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fi
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])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use, and which is not
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dnl guaranteed by both C89 and C11.
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gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
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]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen
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renameat snprintf tmpfile vdprintf vsnprintf])
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AC_REQUIRE([AC_C_RESTRICT])
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AC_CHECK_DECLS_ONCE([fcloseall])
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if test $ac_cv_have_decl_fcloseall = no; then
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HAVE_DECL_FCLOSEALL=0
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fi
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AC_CHECK_DECLS_ONCE([getw])
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if test $ac_cv_have_decl_getw = no; then
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HAVE_DECL_GETW=0
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fi
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AC_CHECK_DECLS_ONCE([putw])
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if test $ac_cv_have_decl_putw = no; then
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HAVE_DECL_PUTW=0
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fi
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])
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# gl_STDIO_MODULE_INDICATOR([modulename])
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# sets the shell variable that indicates the presence of the given module
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# to a C preprocessor expression that will evaluate to 1.
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# This macro invocation must not occur in macros that are AC_REQUIREd.
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AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
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[
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dnl Ensure to expand the default settings once only.
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gl_STDIO_H_REQUIRE_DEFAULTS
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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# Initializes the default values for AC_SUBSTed shell variables.
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# This macro must not be AC_REQUIREd. It must only be invoked, and only
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# outside of macros or in macros that are not AC_REQUIREd.
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AC_DEFUN([gl_STDIO_H_REQUIRE_DEFAULTS],
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[
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m4_defun(GL_MODULE_INDICATOR_PREFIX[_STDIO_H_MODULE_INDICATOR_DEFAULTS], [
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCLOSE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FDOPEN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFLUSH])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FGETC])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FGETS])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FOPEN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FOPEN_GNU])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPRINTF_POSIX])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPURGE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPUTC])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPUTS])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREAD])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREOPEN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSCANF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSEEK])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSEEKO])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTELL])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTELLO])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FWRITE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETC])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETCHAR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDELIM])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLINE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OBSTACK_PRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OBSTACK_PRINTF_POSIX])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PCLOSE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PERROR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_POPEN])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PRINTF_POSIX])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTC])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTCHAR])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTS])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REMOVE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RENAME])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RENAMEAT])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SCANF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SNPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SPRINTF_POSIX])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_NONBLOCKING])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_SIGPIPE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TMPFILE])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VASPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFSCANF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSCANF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VDPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFPRINTF_POSIX])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VPRINTF_POSIX])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSNPRINTF])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSPRINTF_POSIX])
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dnl Support Microsoft deprecated alias function names by default.
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FCLOSEALL], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FDOPEN], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FILENO], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETW], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_PUTW], [1])
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gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_TEMPNAM], [1])
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])
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m4_require(GL_MODULE_INDICATOR_PREFIX[_STDIO_H_MODULE_INDICATOR_DEFAULTS])
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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])
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AC_DEFUN([gl_STDIO_H_DEFAULTS],
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[
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_DECL_FCLOSEALL=1; AC_SUBST([HAVE_DECL_FCLOSEALL])
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HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE])
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HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO])
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HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO])
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HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM])
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HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE])
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HAVE_DECL_GETW=1; AC_SUBST([HAVE_DECL_GETW])
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HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
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HAVE_DECL_PUTW=1; AC_SUBST([HAVE_DECL_PUTW])
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HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF])
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HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF])
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HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF])
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HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO])
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HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO])
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HAVE_PCLOSE=1; AC_SUBST([HAVE_PCLOSE])
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HAVE_POPEN=1; AC_SUBST([HAVE_POPEN])
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HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT])
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HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
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HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF])
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REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF])
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REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE])
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REPLACE_FDOPEN=0; AC_SUBST([REPLACE_FDOPEN])
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REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH])
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REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN])
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REPLACE_FOPEN_FOR_FOPEN_GNU=0; AC_SUBST([REPLACE_FOPEN_FOR_FOPEN_GNU])
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REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF])
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REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE])
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REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN])
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REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK])
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REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
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REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
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REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
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REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM])
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REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE])
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REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF])
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REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR])
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REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN])
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REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF])
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REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE])
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REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME])
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REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT])
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REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF])
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REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF])
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REPLACE_STDIO_READ_FUNCS=0; AC_SUBST([REPLACE_STDIO_READ_FUNCS])
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REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
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REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE])
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REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF])
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REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF])
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REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF])
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REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF])
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REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF])
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REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF])
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])
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