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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.
118 lines
4.2 KiB
Plaintext
118 lines
4.2 KiB
Plaintext
# setlocale_null.m4 serial 9
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dnl Copyright (C) 2019-2024 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_FUNC_SETLOCALE_NULL],
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[
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_REQUIRE([gl_PTHREADLIB])
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AC_CHECK_HEADERS_ONCE([threads.h])
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AC_CACHE_CHECK([whether setlocale (LC_ALL, NULL) is multithread-safe],
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[gl_cv_func_setlocale_null_all_mtsafe],
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[case "$host_os" in
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# Guess no on musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku.
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*-musl* | midipix* | darwin* | freebsd* | midnightbsd* | netbsd* | openbsd* | aix* | haiku*)
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gl_cv_func_setlocale_null_all_mtsafe=no ;;
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# Guess no on Cygwin < 3.4.6.
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cygwin*)
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AC_EGREP_CPP([Lucky user],
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[
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#if defined __CYGWIN__
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#include <cygwin/version.h>
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#if CYGWIN_VERSION_DLL_COMBINED >= CYGWIN_VERSION_DLL_MAKE_COMBINED (3004, 6)
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Lucky user
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#endif
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#endif
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],
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[gl_cv_func_setlocale_null_all_mtsafe=yes],
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[gl_cv_func_setlocale_null_all_mtsafe=no])
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;;
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# Guess yes on glibc, HP-UX, IRIX, Solaris, native Windows.
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*-gnu* | gnu* | hpux* | irix* | solaris* | mingw* | windows*)
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gl_cv_func_setlocale_null_all_mtsafe=yes ;;
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# If we don't know, obey --enable-cross-guesses.
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*)
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gl_cv_func_setlocale_null_all_mtsafe="$gl_cross_guess_normal" ;;
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esac
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])
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dnl On platforms without multithreading, there is no issue.
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case "$host_os" in
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mingw* | windows*) ;;
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*)
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if test $gl_pthread_api = no && test $ac_cv_header_threads_h = no; then
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gl_cv_func_setlocale_null_all_mtsafe="trivially yes"
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fi
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;;
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esac
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case "$gl_cv_func_setlocale_null_all_mtsafe" in
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*yes) SETLOCALE_NULL_ALL_MTSAFE=1 ;;
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*) SETLOCALE_NULL_ALL_MTSAFE=0 ;;
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esac
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AC_DEFINE_UNQUOTED([SETLOCALE_NULL_ALL_MTSAFE], [$SETLOCALE_NULL_ALL_MTSAFE],
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[Define to 1 if setlocale (LC_ALL, NULL) is multithread-safe.])
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dnl This is about a single category (not LC_ALL).
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AC_CACHE_CHECK([whether setlocale (category, NULL) is multithread-safe],
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[gl_cv_func_setlocale_null_one_mtsafe],
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[case "$host_os" in
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# Guess no on OpenBSD, AIX.
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openbsd* | aix*)
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gl_cv_func_setlocale_null_one_mtsafe=no ;;
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# Guess yes on glibc, musl libc, macOS, FreeBSD, NetBSD, HP-UX, IRIX, Solaris, Haiku, Cygwin, native Windows.
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*-gnu* | gnu* | *-musl* | midipix* | darwin* | freebsd* | midnightbsd* | netbsd* | hpux* | irix* | solaris* | haiku* | cygwin* | mingw* | windows*)
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gl_cv_func_setlocale_null_one_mtsafe=yes ;;
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# If we don't know, obey --enable-cross-guesses.
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*)
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gl_cv_func_setlocale_null_one_mtsafe="$gl_cross_guess_normal" ;;
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esac
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])
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dnl On platforms without multithreading, there is no issue.
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case "$host_os" in
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mingw* | windows*) ;;
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*)
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if test $gl_pthread_api = no && test $ac_cv_header_threads_h = no; then
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gl_cv_func_setlocale_null_one_mtsafe="trivially yes"
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fi
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;;
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esac
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case "$gl_cv_func_setlocale_null_one_mtsafe" in
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*yes) SETLOCALE_NULL_ONE_MTSAFE=1 ;;
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*) SETLOCALE_NULL_ONE_MTSAFE=0 ;;
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esac
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AC_DEFINE_UNQUOTED([SETLOCALE_NULL_ONE_MTSAFE], [$SETLOCALE_NULL_ONE_MTSAFE],
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[Define to 1 if setlocale (category, NULL) is multithread-safe.])
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dnl Determine link dependencies of lib/setlocale_null.c and lib/setlocale-lock.c.
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if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then
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case "$host_os" in
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mingw* | windows*)
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SETLOCALE_NULL_LIB=
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;;
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*)
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gl_WEAK_SYMBOLS
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case "$gl_cv_have_weak" in
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*yes) SETLOCALE_NULL_LIB= ;;
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*) SETLOCALE_NULL_LIB="$LIBPTHREAD" ;;
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esac
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;;
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esac
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else
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SETLOCALE_NULL_LIB=
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fi
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dnl SETLOCALE_NULL_LIB is expected to be '-pthread' or '-lpthread' on AIX
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dnl with gcc or xlc, and empty otherwise.
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AC_SUBST([SETLOCALE_NULL_LIB])
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dnl For backward compatibility.
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LIB_SETLOCALE_NULL="$SETLOCALE_NULL_LIB"
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AC_SUBST([LIB_SETLOCALE_NULL])
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])
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# Prerequisites of lib/setlocale-lock.c.
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AC_DEFUN([gl_PREREQ_SETLOCALE_LOCK],
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[
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gl_VISIBILITY
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])
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