-# langinfo_h.m4 serial 7
-dnl Copyright (C) 2009-2011 Free Software Foundation, Inc.
+# langinfo_h.m4 serial 12
+dnl Copyright (C) 2009-2021 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_LANGINFO_H],
+AC_DEFUN_ONCE([gl_LANGINFO_H],
[
AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
dnl Determine whether <langinfo.h> exists. It is missing on mingw and BeOS.
HAVE_LANGINFO_CODESET=0
HAVE_LANGINFO_T_FMT_AMPM=0
+ HAVE_LANGINFO_ALTMON=0
HAVE_LANGINFO_ERA=0
HAVE_LANGINFO_YESEXPR=0
AC_CHECK_HEADERS_ONCE([langinfo.h])
if test $ac_cv_header_langinfo_h = yes; then
HAVE_LANGINFO_H=1
- dnl Determine what <langinfo.h> defines. CODESET and ERA etc. are missing
- dnl on OpenBSD 3.8. T_FMT_AMPM and YESEXPR, NOEXPR are missing on IRIX 5.3.
+ dnl Determine what <langinfo.h> defines.
+ dnl CODESET is missing on OpenBSD 3.8.
+ dnl ERA etc. are missing on OpenBSD 6.7.
+ dnl T_FMT_AMPM and YESEXPR, NOEXPR are missing on IRIX 5.3.
+ dnl ALTMON_* are missing on glibc 2.26 and many other systems.
AC_CACHE_CHECK([whether langinfo.h defines CODESET],
[gl_cv_header_langinfo_codeset],
[AC_COMPILE_IFELSE(
if test $gl_cv_header_langinfo_t_fmt_ampm = yes; then
HAVE_LANGINFO_T_FMT_AMPM=1
fi
+ AC_CACHE_CHECK([whether langinfo.h defines ALTMON_1],
+ [gl_cv_header_langinfo_altmon],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[#include <langinfo.h>
+int a = ALTMON_1;
+]])],
+ [gl_cv_header_langinfo_altmon=yes],
+ [gl_cv_header_langinfo_altmon=no])
+ ])
+ if test $gl_cv_header_langinfo_altmon = yes; then
+ HAVE_LANGINFO_ALTMON=1
+ fi
AC_CACHE_CHECK([whether langinfo.h defines ERA],
[gl_cv_header_langinfo_era],
[AC_COMPILE_IFELSE(
AC_SUBST([HAVE_LANGINFO_H])
AC_SUBST([HAVE_LANGINFO_CODESET])
AC_SUBST([HAVE_LANGINFO_T_FMT_AMPM])
+ AC_SUBST([HAVE_LANGINFO_ALTMON])
AC_SUBST([HAVE_LANGINFO_ERA])
AC_SUBST([HAVE_LANGINFO_YESEXPR])
]], [nl_langinfo])
])
+# gl_LANGINFO_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_LANGINFO_MODULE_INDICATOR],
[
- dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
- AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
+ dnl Ensure to expand the default settings once only.
+ gl_LANGINFO_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_LANGINFO_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_LANGINFO_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_NL_LANGINFO])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_LANGINFO_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
+])
+
AC_DEFUN([gl_LANGINFO_H_DEFAULTS],
[
- GNULIB_NL_LANGINFO=0; AC_SUBST([GNULIB_NL_LANGINFO])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_NL_LANGINFO=1; AC_SUBST([HAVE_NL_LANGINFO])
REPLACE_NL_LANGINFO=0; AC_SUBST([REPLACE_NL_LANGINFO])