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-rw-r--r--m4/stdio_h.m4225
1 files changed, 225 insertions, 0 deletions
diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4
new file mode 100644
index 0000000..42e9607
--- /dev/null
+++ b/m4/stdio_h.m4
@@ -0,0 +1,225 @@
+# stdio_h.m4 serial 59
+dnl Copyright (C) 2007-2022 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_ONCE([gl_STDIO_H],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AH_VERBATIM([MINGW_ANSI_STDIO],
+[/* Use GNU style printf and scanf. */
+#ifndef __USE_MINGW_ANSI_STDIO
+# undef __USE_MINGW_ANSI_STDIO
+#endif
+])
+ AC_DEFINE([__USE_MINGW_ANSI_STDIO])
+ gl_NEXT_HEADERS([stdio.h])
+
+ dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and
+ dnl inttypes.h behave like gnu instead of system; we must give our
+ dnl printf wrapper the right attribute to match.
+ AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros],
+ [gl_cv_func_printf_attribute_flavor],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+ #define __STDC_FORMAT_MACROS 1
+ #include <stdio.h>
+ #include <inttypes.h>
+ /* For non-mingw systems, compilation will trivially succeed.
+ For mingw, compilation will succeed for older mingw (system
+ printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */
+ #if (defined _WIN32 && ! defined __CYGWIN__) && \
+ (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
+ extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1];
+ #endif
+ ]])], [gl_cv_func_printf_attribute_flavor=system],
+ [gl_cv_func_printf_attribute_flavor=gnu])])
+ if test "$gl_cv_func_printf_attribute_flavor" = gnu; then
+ AC_DEFINE([GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU], [1],
+ [Define to 1 if printf and friends should be labeled with
+ attribute "__gnu_printf__" instead of "__printf__"])
+ fi
+
+ dnl This ifdef is an optimization, to avoid performing a configure check whose
+ dnl result is not used. But it does not make the test of
+ dnl GNULIB_STDIO_H_NONBLOCKING or GNULIB_NONBLOCKING redundant.
+ m4_ifdef([gl_NONBLOCKING_IO], [
+ gl_NONBLOCKING_IO
+ if test $gl_cv_have_nonblocking != yes; then
+ REPLACE_STDIO_READ_FUNCS=1
+ fi
+ ])
+
+ dnl This ifdef is an optimization, to avoid performing a configure check whose
+ dnl result is not used. But it does not make the test of
+ dnl GNULIB_STDIO_H_SIGPIPE or GNULIB_SIGPIPE redundant.
+ m4_ifdef([gl_SIGNAL_SIGPIPE], [
+ gl_SIGNAL_SIGPIPE
+ if test $gl_cv_header_signal_h_SIGPIPE != yes; then
+ REPLACE_STDIO_WRITE_FUNCS=1
+ fi
+ ])
+ dnl This ifdef is an optimization, to avoid performing a configure check whose
+ dnl result is not used. But it does not make the test of
+ dnl GNULIB_STDIO_H_NONBLOCKING or GNULIB_NONBLOCKING redundant.
+ m4_ifdef([gl_NONBLOCKING_IO], [
+ gl_NONBLOCKING_IO
+ if test $gl_cv_have_nonblocking != yes; then
+ REPLACE_STDIO_WRITE_FUNCS=1
+ fi
+ ])
+
+ dnl Check for declarations of anything we want to poison if the
+ dnl corresponding gnulib module is not in use, and which is not
+ dnl guaranteed by both C89 and C11.
+ gl_WARN_ON_USE_PREPARE([[#include <stdio.h>
+ ]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen
+ renameat snprintf tmpfile vdprintf vsnprintf])
+
+ AC_REQUIRE([AC_C_RESTRICT])
+
+ AC_CHECK_DECLS_ONCE([fcloseall])
+ if test $ac_cv_have_decl_fcloseall = no; then
+ HAVE_DECL_FCLOSEALL=0
+ fi
+])
+
+# gl_STDIO_MODULE_INDICATOR([modulename])
+# sets the shell variable that indicates the presence of the given module
+# to a C preprocessor expression that will evaluate to 1.
+# This macro invocation must not occur in macros that are AC_REQUIREd.
+AC_DEFUN([gl_STDIO_MODULE_INDICATOR],
+[
+ dnl Ensure to expand the default settings once only.
+ gl_STDIO_H_REQUIRE_DEFAULTS
+ gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+ dnl Define it also as a C macro, for the benefit of the unit tests.
+ gl_MODULE_INDICATOR_FOR_TESTS([$1])
+])
+
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_STDIO_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_STDIO_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCLOSE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FDOPEN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FFLUSH])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FGETC])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FGETS])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FOPEN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FOPEN_GNU])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPRINTF_POSIX])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPURGE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPUTC])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FPUTS])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREAD])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FREOPEN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSCANF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSEEK])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSEEKO])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTELL])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTELLO])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FWRITE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETC])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETCHAR])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDELIM])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLINE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OBSTACK_PRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_OBSTACK_PRINTF_POSIX])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PCLOSE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PERROR])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_POPEN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PRINTF_POSIX])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTC])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTCHAR])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PUTS])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_REMOVE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RENAME])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RENAMEAT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SCANF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SNPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SPRINTF_POSIX])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_NONBLOCKING])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_STDIO_H_SIGPIPE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TMPFILE])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VASPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFSCANF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSCANF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VDPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VFPRINTF_POSIX])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VPRINTF_POSIX])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSNPRINTF])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_VSPRINTF_POSIX])
+ dnl Support Microsoft deprecated alias function names by default.
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FCLOSEALL], [1])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FDOPEN], [1])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_FILENO], [1])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETW], [1])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_PUTW], [1])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_TEMPNAM], [1])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_STDIO_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+])
+
+AC_DEFUN([gl_STDIO_H_DEFAULTS],
+[
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_DECL_FCLOSEALL=1; AC_SUBST([HAVE_DECL_FCLOSEALL])
+ HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE])
+ HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO])
+ HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO])
+ HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM])
+ HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE])
+ HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF])
+ HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF])
+ HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF])
+ HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF])
+ HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO])
+ HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO])
+ HAVE_PCLOSE=1; AC_SUBST([HAVE_PCLOSE])
+ HAVE_POPEN=1; AC_SUBST([HAVE_POPEN])
+ HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT])
+ HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
+ HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF])
+ REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF])
+ REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE])
+ REPLACE_FDOPEN=0; AC_SUBST([REPLACE_FDOPEN])
+ REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH])
+ REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN])
+ REPLACE_FOPEN_FOR_FOPEN_GNU=0; AC_SUBST([REPLACE_FOPEN_FOR_FOPEN_GNU])
+ REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF])
+ REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE])
+ REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN])
+ REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK])
+ REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
+ REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
+ REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
+ REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM])
+ REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE])
+ REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF])
+ REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR])
+ REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN])
+ REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF])
+ REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE])
+ REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME])
+ REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT])
+ REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF])
+ REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF])
+ REPLACE_STDIO_READ_FUNCS=0; AC_SUBST([REPLACE_STDIO_READ_FUNCS])
+ REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS])
+ REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE])
+ REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF])
+ REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF])
+ REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF])
+ REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF])
+ REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF])
+ REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF])
+])