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Diffstat (limited to 'm4/locale_h.m4')
| -rw-r--r-- | m4/locale_h.m4 | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/m4/locale_h.m4 b/m4/locale_h.m4 new file mode 100644 index 0000000..c0f4d52 --- /dev/null +++ b/m4/locale_h.m4 @@ -0,0 +1,122 @@ +# locale_h.m4 serial 19 +dnl Copyright (C) 2007, 2009-2012 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_LOCALE_H], +[ + dnl Use AC_REQUIRE here, so that the default behavior below is expanded + dnl once only, before all statements that occur in other macros. + AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) + + dnl Persuade glibc <locale.h> to define locale_t and the int_p_*, int_n_* + dnl members of 'struct lconv'. + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + + dnl If <stddef.h> is replaced, then <locale.h> must also be replaced. + AC_REQUIRE([gl_STDDEF_H]) + + dnl Solaris 11 2011-11 defines the int_p_*, int_n_* members of 'struct lconv' + dnl only if _LCONV_C99 is defined. + AC_REQUIRE([AC_CANONICAL_HOST]) + case "$host_os" in + solaris*) + AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.]) + ;; + esac + + AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001], + [gl_cv_header_locale_h_posix2001], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <locale.h> + int x = LC_MESSAGES; + int y = sizeof (((struct lconv *) 0)->decimal_point);]], + [[]])], + [gl_cv_header_locale_h_posix2001=yes], + [gl_cv_header_locale_h_posix2001=no])]) + + dnl Check for <xlocale.h>. + AC_CHECK_HEADERS_ONCE([xlocale.h]) + if test $ac_cv_header_xlocale_h = yes; then + HAVE_XLOCALE_H=1 + dnl Check whether use of locale_t requires inclusion of <xlocale.h>, + dnl e.g. on Mac OS X 10.5. If <locale.h> does not define locale_t by + dnl itself, we assume that <xlocale.h> will do so. + AC_CACHE_CHECK([whether locale.h defines locale_t], + [gl_cv_header_locale_has_locale_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <locale.h> + locale_t x;]], + [[]])], + [gl_cv_header_locale_has_locale_t=yes], + [gl_cv_header_locale_has_locale_t=no]) + ]) + if test $gl_cv_header_locale_has_locale_t = yes; then + gl_cv_header_locale_h_needs_xlocale_h=no + else + gl_cv_header_locale_h_needs_xlocale_h=yes + fi + else + HAVE_XLOCALE_H=0 + gl_cv_header_locale_h_needs_xlocale_h=no + fi + AC_SUBST([HAVE_XLOCALE_H]) + + dnl Check whether 'struct lconv' is complete. + dnl Bionic libc's 'struct lconv' is just a dummy. + dnl On OpenBSD 4.9, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, + dnl mingw, MSVC 9, it lacks the int_p_* and int_n_* members. + AC_CACHE_CHECK([whether struct lconv is properly defined], + [gl_cv_sys_struct_lconv_ok], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include <locale.h> + struct lconv l; + int x = sizeof (l.decimal_point); + int y = sizeof (l.int_p_cs_precedes);]], + [[]])], + [gl_cv_sys_struct_lconv_ok=yes], + [gl_cv_sys_struct_lconv_ok=no]) + ]) + if test $gl_cv_sys_struct_lconv_ok = no; then + REPLACE_STRUCT_LCONV=1 + fi + + dnl <locale.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_NEXT_HEADERS([locale.h]) + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[#include <locale.h> +/* Some systems provide declarations in a non-standard header. */ +#if HAVE_XLOCALE_H +# include <xlocale.h> +#endif + ]], + [setlocale duplocale]) +]) + +AC_DEFUN([gl_LOCALE_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_LOCALE_H_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]) +]) + +AC_DEFUN([gl_LOCALE_H_DEFAULTS], +[ + GNULIB_LOCALECONV=0; AC_SUBST([GNULIB_LOCALECONV]) + GNULIB_SETLOCALE=0; AC_SUBST([GNULIB_SETLOCALE]) + GNULIB_DUPLOCALE=0; AC_SUBST([GNULIB_DUPLOCALE]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DUPLOCALE=1; AC_SUBST([HAVE_DUPLOCALE]) + REPLACE_LOCALECONV=0; AC_SUBST([REPLACE_LOCALECONV]) + REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE]) + REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE]) + REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV]) +]) |