(Windows) Added partial localization support

CMakeLists.txt

@@ -481,6 +481,7 @@ elseif(WIN32)
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/ffmpeg/include
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/FreeImage/Dist/x64
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/freetype/include
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/gettext/include
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/libgit2/include
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/pugixml/src
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/SDL2)
@@ -556,6 +557,7 @@ elseif(WIN32)
                             ${PROJECT_SOURCE_DIR}/git2.lib
                             ${PROJECT_SOURCE_DIR}/glew32.lib
                             ${PROJECT_SOURCE_DIR}/libcurl-x64.lib
+                            ${PROJECT_SOURCE_DIR}/libintl-8.lib
                             ${PROJECT_SOURCE_DIR}/freetype.lib
                             ${PROJECT_SOURCE_DIR}/lunasvg.lib
                             ${PROJECT_SOURCE_DIR}/pugixml.lib
@@ -696,7 +698,7 @@ add_subdirectory(es-app)
 add_dependencies(lunasvg es-pdf-convert)
 
 if (COMPILE_LOCALIZATIONS)
-    add_dependencies(es-pdf-convert locale)
+    add_dependencies(es-pdf-convert localization)
 endif()
 
 add_dependencies(es-core rlottie)

es-app/CMakeLists.txt

@@ -163,6 +163,7 @@ if(WIN32)
                   ../glew32.dll
                   ../libcrypto-3-x64.dll
                   ../libcurl-x64.dll
+                  ../libintl-8.dll
                   ../libssl-3-x64.dll
                   ../lunasvg.dll
                   ../pugixml.dll

es-app/assets/libintl_Windows.h

@@ -0,0 +1,642 @@
+/* Message catalogs for internationalization.
+   Copyright (C) 1995-1997, 2000-2016, 2018-2024 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation; either version 2.1 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#ifndef _LIBINTL_H
+#define _LIBINTL_H 1
+
+#include <locale.h>
+#if (defined __APPLE__ && defined __MACH__) && 0
+# include <xlocale.h>
+#endif
+
+/* The LC_MESSAGES locale category is the category used by the functions
+   gettext() and dgettext().  It is specified in POSIX, but not in ANSI C.
+   On systems that don't define it, use an arbitrary value instead.
+   On Solaris, <locale.h> defines __LOCALE_H (or _LOCALE_H in Solaris 2.5)
+   then includes <libintl.h> (i.e. this file!) and then only defines
+   LC_MESSAGES.  To avoid a redefinition warning, don't define LC_MESSAGES
+   in this case.  */
+#if !defined LC_MESSAGES && !(defined __LOCALE_H || (defined _LOCALE_H && defined __sun))
+# define LC_MESSAGES 1729
+#endif
+
+/* We define an additional symbol to signal that we use the GNU
+   implementation of gettext.  */
+#define __USE_GNU_GETTEXT 1
+
+/* Provide information about the supported file formats.  Returns the
+   maximum minor revision number supported for a given major revision.  */
+#define __GNU_GETTEXT_SUPPORTED_REVISION(major) \
+  ((major) == 0 || (major) == 1 ? 1 : -1)
+
+/* Resolve a platform specific conflict on DJGPP.  GNU gettext takes
+   precedence over _conio_gettext.  */
+#ifdef __DJGPP__
+# undef gettext
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Version number: (major<<16) + (minor<<8) + subminor */
+#define LIBINTL_VERSION 0x001605
+extern int libintl_version;
+
+
+/* We redirect the functions to those prefixed with "libintl_".  This is
+   necessary, because some systems define gettext/textdomain/... in the C
+   library (namely, Solaris 2.4 and newer, and GNU libc 2.0 and newer).
+   If we used the unprefixed names, there would be cases where the
+   definition in the C library would override the one in the libintl.so
+   shared library.  Recall that on ELF systems, the symbols are looked
+   up in the following order:
+     1. in the executable,
+     2. in the shared libraries specified on the link command line, in order,
+     3. in the dependencies of the shared libraries specified on the link
+        command line,
+     4. in the dlopen()ed shared libraries, in the order in which they were
+        dlopen()ed.
+   The definition in the C library would override the one in libintl.so if
+   either
+     * -lc is given on the link command line and -lintl isn't, or
+     * -lc is given on the link command line before -lintl, or
+     * libintl.so is a dependency of a dlopen()ed shared library but not
+       linked to the executable at link time.
+   Since Solaris gettext() behaves differently than GNU gettext(), this
+   would be unacceptable.
+
+   The redirection happens by default through macros in C, so that &gettext
+   is independent of the compilation unit, but through inline functions in
+   C++, in order not to interfere with the name mangling of class fields or
+   class methods called 'gettext'.  */
+
+/* The user can define _INTL_REDIRECT_INLINE or _INTL_REDIRECT_MACROS.
+   If he doesn't, we choose the method.  A third possible method is
+   _INTL_REDIRECT_ASM, supported only by GCC.  */
+#if !(defined _INTL_REDIRECT_INLINE || defined _INTL_REDIRECT_MACROS)
+# if defined __GNUC__ && __GNUC__ >= 2 && !(defined __APPLE_CC__ && __APPLE_CC__ > 1) && !defined __MINGW32__ && !(__GNUC__ == 2 && defined _AIX) && (defined __STDC__ || defined __cplusplus)
+#  define _INTL_REDIRECT_ASM
+# else
+#  ifdef __cplusplus
+#   define _INTL_REDIRECT_INLINE
+#  else
+#   define _INTL_REDIRECT_MACROS
+#  endif
+# endif
+#endif
+/* Auxiliary macros.  */
+#ifdef _INTL_REDIRECT_ASM
+# define _INTL_ASM(cname) __asm__ (_INTL_ASMNAME (__USER_LABEL_PREFIX__, #cname))
+# define _INTL_ASMNAME(prefix,cnamestring) _INTL_STRINGIFY (prefix) cnamestring
+# define _INTL_STRINGIFY(prefix) #prefix
+#else
+# define _INTL_ASM(cname)
+#endif
+
+/* _INTL_MAY_RETURN_STRING_ARG(n) declares that the given function may return
+   its n-th argument literally.  This enables GCC to warn for example about
+   printf (gettext ("foo %y")).  */
+#if defined __GNUC__ && __GNUC__ >= 3 && !(defined __APPLE_CC__ && __APPLE_CC__ > 1 && !(defined __clang__ && __clang__ && __clang_major__ >= 3) && defined __cplusplus)
+# define _INTL_MAY_RETURN_STRING_ARG(n) __attribute__ ((__format_arg__ (n)))
+#else
+# define _INTL_MAY_RETURN_STRING_ARG(n)
+#endif
+
+/* _INTL_ATTRIBUTE_FORMAT ((ARCHETYPE, STRING-INDEX, FIRST-TO-CHECK))
+   declares that the STRING-INDEXth function argument is a format string of
+   style ARCHETYPE, which is one of:
+     printf, gnu_printf
+     scanf, gnu_scanf,
+     strftime, gnu_strftime,
+     strfmon,
+   or the same thing prefixed and suffixed with '__'.
+   If FIRST-TO-CHECK is not 0, arguments starting at FIRST-TO_CHECK
+   are suitable for the format string.  */
+/* Applies to: functions.  */
+#if (defined __GNUC__ && __GNUC__ + (__GNUC_MINOR__ >= 7) > 2) || defined __clang__
+# define _INTL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
+#else
+# define _INTL_ATTRIBUTE_FORMAT(spec)
+#endif
+
+/* _INTL_ATTRIBUTE_SPEC_PRINTF_STANDARD
+   An __attribute__ __format__ specifier for a function that takes a format
+   string and arguments, where the format string directives are the ones
+   standardized by ISO C99 and POSIX.  */
+/* __gnu_printf__ is supported in GCC >= 4.4.  */
+#if defined __GNUC__ && __GNUC__ + (__GNUC_MINOR__ >= 4) > 4
+# define _INTL_ATTRIBUTE_SPEC_PRINTF_STANDARD __gnu_printf__
+#else
+# define _INTL_ATTRIBUTE_SPEC_PRINTF_STANDARD __printf__
+#endif
+
+/* _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD
+   indicates to GCC that the function takes a format string and arguments,
+   where the format string directives are the ones standardized by ISO C99
+   and POSIX.  */
+#define _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD(formatstring_parameter, first_argument) \
+  _INTL_ATTRIBUTE_FORMAT ((_INTL_ATTRIBUTE_SPEC_PRINTF_STANDARD, formatstring_parameter, first_argument))
+
+/* Look up MSGID in the current default message catalog for the current
+   LC_MESSAGES locale.  If not found, returns MSGID itself (the default
+   text).  */
+#ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_gettext (const char *__msgid)
+       _INTL_MAY_RETURN_STRING_ARG (1);
+static inline
+_INTL_MAY_RETURN_STRING_ARG (1)
+char *gettext (const char *__msgid)
+{
+  return libintl_gettext (__msgid);
+}
+#else
+# ifdef _INTL_REDIRECT_MACROS
+#  define gettext libintl_gettext
+# endif
+extern char *gettext (const char *__msgid)
+       _INTL_ASM (libintl_gettext)
+       _INTL_MAY_RETURN_STRING_ARG (1);
+#endif
+
+/* Look up MSGID in the DOMAINNAME message catalog for the current
+   LC_MESSAGES locale.  */
+#ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_dgettext (const char *__domainname, const char *__msgid)
+       _INTL_MAY_RETURN_STRING_ARG (2);
+static inline
+_INTL_MAY_RETURN_STRING_ARG (2)
+char *dgettext (const char *__domainname, const char *__msgid)
+{
+  return libintl_dgettext (__domainname, __msgid);
+}
+#else
+# ifdef _INTL_REDIRECT_MACROS
+#  define dgettext libintl_dgettext
+# endif
+extern char *dgettext (const char *__domainname, const char *__msgid)
+       _INTL_ASM (libintl_dgettext)
+       _INTL_MAY_RETURN_STRING_ARG (2);
+#endif
+
+/* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
+   locale.  */
+#ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_dcgettext (const char *__domainname, const char *__msgid,
+                                int __category)
+       _INTL_MAY_RETURN_STRING_ARG (2);
+static inline
+_INTL_MAY_RETURN_STRING_ARG (2)
+char *dcgettext (const char *__domainname, const char *__msgid, int __category)
+{
+  return libintl_dcgettext (__domainname, __msgid, __category);
+}
+#else
+# ifdef _INTL_REDIRECT_MACROS
+#  define dcgettext libintl_dcgettext
+# endif
+extern char *dcgettext (const char *__domainname, const char *__msgid,
+                        int __category)
+       _INTL_ASM (libintl_dcgettext)
+       _INTL_MAY_RETURN_STRING_ARG (2);
+#endif
+
+
+/* Similar to 'gettext' but select the plural form corresponding to the
+   number N.  */
+#ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_ngettext (const char *__msgid1, const char *__msgid2,
+                               unsigned long int __n)
+       _INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2);
+static inline
+_INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2)
+char *ngettext (const char *__msgid1, const char *__msgid2,
+                unsigned long int __n)
+{
+  return libintl_ngettext (__msgid1, __msgid2, __n);
+}
+#else
+# ifdef _INTL_REDIRECT_MACROS
+#  define ngettext libintl_ngettext
+# endif
+extern char *ngettext (const char *__msgid1, const char *__msgid2,
+                       unsigned long int __n)
+       _INTL_ASM (libintl_ngettext)
+       _INTL_MAY_RETURN_STRING_ARG (1) _INTL_MAY_RETURN_STRING_ARG (2);
+#endif
+
+/* Similar to 'dgettext' but select the plural form corresponding to the
+   number N.  */
+#ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_dngettext (const char *__domainname, const char *__msgid1,
+                                const char *__msgid2, unsigned long int __n)
+       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
+static inline
+_INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3)
+char *dngettext (const char *__domainname, const char *__msgid1,
+                 const char *__msgid2, unsigned long int __n)
+{
+  return libintl_dngettext (__domainname, __msgid1, __msgid2, __n);
+}
+#else
+# ifdef _INTL_REDIRECT_MACROS
+#  define dngettext libintl_dngettext
+# endif
+extern char *dngettext (const char *__domainname,
+                        const char *__msgid1, const char *__msgid2,
+                        unsigned long int __n)
+       _INTL_ASM (libintl_dngettext)
+       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
+#endif
+
+/* Similar to 'dcgettext' but select the plural form corresponding to the
+   number N.  */
+#ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_dcngettext (const char *__domainname,
+                                 const char *__msgid1, const char *__msgid2,
+                                 unsigned long int __n, int __category)
+       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
+static inline
+_INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3)
+char *dcngettext (const char *__domainname,
+                  const char *__msgid1, const char *__msgid2,
+                  unsigned long int __n, int __category)
+{
+  return libintl_dcngettext (__domainname, __msgid1, __msgid2, __n, __category);
+}
+#else
+# ifdef _INTL_REDIRECT_MACROS
+#  define dcngettext libintl_dcngettext
+# endif
+extern char *dcngettext (const char *__domainname,
+                         const char *__msgid1, const char *__msgid2,
+                         unsigned long int __n, int __category)
+       _INTL_ASM (libintl_dcngettext)
+       _INTL_MAY_RETURN_STRING_ARG (2) _INTL_MAY_RETURN_STRING_ARG (3);
+#endif
+
+
+
+/* Set the current default message catalog to DOMAINNAME.
+   If DOMAINNAME is null, return the current default.
+   If DOMAINNAME is "", reset to the default of "messages".  */
+# ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_textdomain (const char *__domainname);
+static inline char *textdomain (const char *__domainname)
+{
+  return libintl_textdomain (__domainname);
+}
+# else
+#  ifdef _INTL_REDIRECT_MACROS
+#   define textdomain libintl_textdomain
+#  endif
+extern char *textdomain (const char *__domainname)
+       _INTL_ASM (libintl_textdomain);
+# endif
+
+/* Specify that the DOMAINNAME message catalog will be found
+   in DIRNAME rather than in the system locale data base.  */
+# ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_bindtextdomain (const char *__domainname,
+                                     const char *__dirname);
+static inline char *bindtextdomain (const char *__domainname,
+                                    const char *__dirname)
+{
+  return libintl_bindtextdomain (__domainname, __dirname);
+}
+# else
+#  ifdef _INTL_REDIRECT_MACROS
+#   define bindtextdomain libintl_bindtextdomain
+#  endif
+extern char *bindtextdomain (const char *__domainname, const char *__dirname)
+       _INTL_ASM (libintl_bindtextdomain);
+# endif
+
+# if defined _WIN32 && !defined __CYGWIN__
+/* Specify that the DOMAINNAME message catalog will be found
+   in WDIRNAME rather than in the system locale data base.  */
+#  ifdef _INTL_REDIRECT_INLINE
+extern wchar_t *libintl_wbindtextdomain (const char *__domainname,
+                                         const wchar_t *__wdirname);
+static inline wchar_t *wbindtextdomain (const char *__domainname,
+                                        const wchar_t *__wdirname)
+{
+  return libintl_wbindtextdomain (__domainname, __wdirname);
+}
+#  else
+#   ifdef _INTL_REDIRECT_MACROS
+#    define wbindtextdomain libintl_wbindtextdomain
+#   endif
+extern wchar_t *wbindtextdomain (const char *__domainname,
+                                 const wchar_t *__wdirname)
+       _INTL_ASM (libintl_wbindtextdomain);
+#  endif
+# endif
+
+/* Specify the character encoding in which the messages from the
+   DOMAINNAME message catalog will be returned.  */
+# ifdef _INTL_REDIRECT_INLINE
+extern char *libintl_bind_textdomain_codeset (const char *__domainname,
+                                              const char *__codeset);
+static inline char *bind_textdomain_codeset (const char *__domainname,
+                                             const char *__codeset)
+{
+  return libintl_bind_textdomain_codeset (__domainname, __codeset);
+}
+# else
+#  ifdef _INTL_REDIRECT_MACROS
+#   define bind_textdomain_codeset libintl_bind_textdomain_codeset
+#  endif
+extern char *bind_textdomain_codeset (const char *__domainname,
+                                      const char *__codeset)
+       _INTL_ASM (libintl_bind_textdomain_codeset);
+# endif
+
+
+
+/* Support for format strings with positions in *printf(), following the
+   POSIX/XSI specification.
+   Note: These replacements for the *printf() functions are visible only
+   in source files that #include <libintl.h> or #include "gettext.h".
+   Packages that use *printf() in source files that don't refer to _()
+   or gettext() but for which the format string could be the return value
+   of _() or gettext() need to add this #include.  Oh well.  */
+
+/* Note: In C++ mode, it is not sufficient to redefine a symbol at the
+   preprocessor macro level, such as
+     #define sprintf libintl_sprintf
+   Some programs may reference std::sprintf after including <libintl.h>.
+   Therefore we must make sure that std::libintl_sprintf is defined and
+   identical to ::libintl_sprintf.
+   The user can define _INTL_CXX_NO_CLOBBER_STD_NAMESPACE to avoid this.
+   In such cases, they will not benefit from the overrides when using
+   the 'std' namespace, and they will need to do the references to the
+   'std' namespace *before* including <libintl.h> or "gettext.h".  */
+
+#if !0
+
+# include <stdio.h>
+# include <stddef.h>
+
+/* Get va_list.  */
+# if (defined __STDC__ && __STDC__) || defined __cplusplus || defined _MSC_VER
+#  include <stdarg.h>
+# else
+#  include <varargs.h>
+# endif
+
+# if !((defined fprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_fprintf) /* don't override gnulib */
+#  undef fprintf
+#  define fprintf libintl_fprintf
+extern int fprintf (FILE *, const char *, ...)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_fprintf; }
+#  endif
+# endif
+# if !((defined vfprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_vfprintf) /* don't override gnulib */
+#  undef vfprintf
+#  define vfprintf libintl_vfprintf
+extern int vfprintf (FILE *, const char *, va_list)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vfprintf; }
+#  endif
+# endif
+
+# if !((defined printf && defined _GL_STDIO_H) || defined GNULIB_overrides_printf) /* don't override gnulib */
+#  undef printf
+#  if defined __NetBSD__ || defined __BEOS__ || defined __CYGWIN__ || defined __MINGW32__
+/* Don't break __attribute__((format(printf,M,N))).
+   This redefinition is only possible because the libc in NetBSD, Cygwin,
+   mingw does not have a function __printf__.
+   Alternatively, we could have done this redirection only when compiling with
+   __GNUC__, together with a symbol redirection:
+       extern int printf (const char *, ...)
+              __asm__ (#__USER_LABEL_PREFIX__ "libintl_printf");
+   But doing it now would introduce a binary incompatibility with already
+   distributed versions of libintl on these systems.  */
+#   define libintl_printf __printf__
+#  endif
+#  define printf libintl_printf
+extern int printf (const char *, ...)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_printf; }
+#  endif
+# endif
+# if !((defined vprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_vprintf) /* don't override gnulib */
+#  undef vprintf
+#  define vprintf libintl_vprintf
+extern int vprintf (const char *, va_list)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 0);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vprintf; }
+#  endif
+# endif
+
+# if !((defined sprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_sprintf) /* don't override gnulib */
+#  undef sprintf
+#  define sprintf libintl_sprintf
+extern int sprintf (char *, const char *, ...)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_sprintf; }
+#  endif
+# endif
+# if !((defined vsprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_vsprintf) /* don't override gnulib */
+#  undef vsprintf
+#  define vsprintf libintl_vsprintf
+extern int vsprintf (char *, const char *, va_list)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vsprintf; }
+#  endif
+# endif
+
+# if 1
+
+#  if !((defined snprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_snprintf) /* don't override gnulib */
+#   undef snprintf
+#   define snprintf libintl_snprintf
+extern int snprintf (char *, size_t, const char *, ...)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4);
+#   if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_snprintf; }
+#   endif
+#  endif
+#  if !((defined vsnprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_vsnprintf) /* don't override gnulib */
+#   undef vsnprintf
+#   define vsnprintf libintl_vsnprintf
+extern int vsnprintf (char *, size_t, const char *, va_list)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0);
+#   if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vsnprintf; }
+#   endif
+#  endif
+
+# endif
+
+# if 1
+
+#  if !((defined asprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_asprintf) /* don't override gnulib */
+#   undef asprintf
+#   define asprintf libintl_asprintf
+extern int asprintf (char **, const char *, ...)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3);
+#   if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_asprintf; }
+#   endif
+#  endif
+#  if !((defined vasprintf && defined _GL_STDIO_H) || defined GNULIB_overrides_vasprintf) /* don't override gnulib */
+#   undef vasprintf
+#   define vasprintf libintl_vasprintf
+extern int vasprintf (char **, const char *, va_list)
+  _INTL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0);
+#   if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vasprintf; }
+#   endif
+#  endif
+
+# endif
+
+# if 1
+
+#  undef fwprintf
+#  define fwprintf libintl_fwprintf
+extern int fwprintf (FILE *, const wchar_t *, ...);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_fwprintf; }
+#  endif
+#  undef vfwprintf
+#  define vfwprintf libintl_vfwprintf
+extern int vfwprintf (FILE *, const wchar_t *, va_list);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vfwprintf; }
+#  endif
+
+#  undef wprintf
+#  define wprintf libintl_wprintf
+extern int wprintf (const wchar_t *, ...);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_wprintf; }
+#  endif
+#  undef vwprintf
+#  define vwprintf libintl_vwprintf
+extern int vwprintf (const wchar_t *, va_list);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vwprintf; }
+#  endif
+
+#  undef swprintf
+#  define swprintf libintl_swprintf
+extern int swprintf (wchar_t *, size_t, const wchar_t *, ...);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_swprintf; }
+#  endif
+#  undef vswprintf
+#  define vswprintf libintl_vswprintf
+extern int vswprintf (wchar_t *, size_t, const wchar_t *, va_list);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_vswprintf; }
+#  endif
+
+# endif
+
+#endif
+
+
+/* Support for retrieving the name of a locale_t object.  */
+#if 0
+
+# ifndef GNULIB_defined_newlocale /* don't override gnulib */
+#  undef newlocale
+#  define newlocale libintl_newlocale
+extern locale_t newlocale (int, const char *, locale_t);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_newlocale; }
+#  endif
+# endif
+
+# ifndef GNULIB_defined_duplocale /* don't override gnulib */
+#  undef duplocale
+#  define duplocale libintl_duplocale
+extern locale_t duplocale (locale_t);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_duplocale; }
+#  endif
+# endif
+
+# ifndef GNULIB_defined_freelocale /* don't override gnulib */
+#  undef freelocale
+#  define freelocale libintl_freelocale
+extern void freelocale (locale_t);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_freelocale; }
+#  endif
+# endif
+
+#endif
+
+
+/* Support for the locale chosen by the user.  */
+#if (defined __APPLE__ && defined __MACH__) || defined _WIN32 || defined __CYGWIN__
+
+# ifndef GNULIB_defined_setlocale /* don't override gnulib */
+#  undef setlocale
+#  define setlocale libintl_setlocale
+extern char *setlocale (int, const char *);
+#  if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_setlocale; }
+#  endif
+# endif
+
+# if 0
+
+#  undef newlocale
+#  define newlocale libintl_newlocale
+/* Declare newlocale() only if the system headers define the 'locale_t' type. */
+#  if !(defined __CYGWIN__ && !defined LC_ALL_MASK)
+extern locale_t newlocale (int, const char *, locale_t);
+#   if defined __cplusplus && !defined _INTL_CXX_NO_CLOBBER_STD_NAMESPACE
+namespace std { using ::libintl_newlocale; }
+#   endif
+#  endif
+
+# endif
+
+#endif
+
+
+/* Support for relocatable packages.  */
+
+/* Sets the original and the current installation prefix of the package.
+   Relocation simply replaces a pathname starting with the original prefix
+   by the corresponding pathname with the current prefix instead.  Both
+   prefixes should be directory names without trailing slash (i.e. use ""
+   instead of "/").  */
+#define libintl_set_relocation_prefix libintl_set_relocation_prefix
+extern void
+       libintl_set_relocation_prefix (const char *orig_prefix,
+                                      const char *curr_prefix);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* libintl.h */

locale/CMakeLists.txt

@@ -6,10 +6,12 @@
 #  CMake configuration for compiling localization message catalog files using msgfmt
 #
 
-add_custom_target(locale ALL COMMENT "Compiling localization message catalogs")
+add_custom_target(localization ALL COMMENT Compiling localization message catalogs)
 
 if(APPLE)
     set(MSGFMT_BINARY ${PROJECT_SOURCE_DIR}/external/local_install/bin/msgfmt)
+elseif(WIN32)
+    set(MSGFMT_BINARY ${PROJECT_SOURCE_DIR}/external/gettext/bin/msgfmt.exe)
 else()
     find_program(MSGFMT_BINARY msgfmt)
 endif()
@@ -23,9 +25,9 @@ file(GLOB PO_FILES ${PROJECT_SOURCE_DIR}/locale/po/*.po)
 foreach (PO_FILE ${PO_FILES})
     get_filename_component(PO_FILENAME ${PO_FILE} NAME)
     get_filename_component(PO_BASENAME ${PO_FILENAME} NAME_WE)
-    add_custom_command(TARGET locale COMMAND echo "Compiling message catalog for locale" ${PO_BASENAME})
+    add_custom_command(TARGET localization COMMAND echo Compiling message catalog for locale ${PO_BASENAME})
-    add_custom_command(TARGET locale COMMAND mkdir -p ${PROJECT_SOURCE_DIR}/resources/locale/${PO_BASENAME}/LC_MESSAGES)
+    file(MAKE_DIRECTORY ${PROJECT_SOURCE_DIR}/resources/locale/${PO_BASENAME}/LC_MESSAGES)
-    add_custom_command(TARGET locale COMMAND ${MSGFMT_BINARY} -c --statistics -o ${PROJECT_SOURCE_DIR}/resources/locale/${PO_BASENAME}/LC_MESSAGES/${PO_BASENAME}.mo ${PO_FILE})
+    add_custom_command(TARGET localization COMMAND ${MSGFMT_BINARY} -c --statistics -o ${PROJECT_SOURCE_DIR}/resources/locale/${PO_BASENAME}/LC_MESSAGES/${PO_BASENAME}.mo ${PO_FILE})
 endforeach()
 
-add_custom_command(TARGET locale COMMAND echo)
+add_custom_command(TARGET localization COMMAND echo)

tools/Windows_dependencies_setup.bat

@@ -33,6 +33,40 @@ echo:
 
 cd external
 
+echo Setting up gettext
+
+if exist gettext\ (
+  rmdir /S /Q gettext
+)
+
+mkdir gettext
+cd gettext
+
+curl -LO https://github.com/vslavik/gettext-tools-windows/releases/download/v0.22.5/gettext-tools-windows-0.22.5.zip
+7z x gettext-tools-windows-0.22.5.zip
+
+if not exist bin\msgfmt.exe (
+  echo msgfmt.exe is missing, aborting.
+  cd ..\..
+  goto end
+)
+
+mkdir include
+copy ..\..\es-app\assets\libintl_Windows.h include\libintl.h
+
+cd bin
+
+dumpbin /exports libintl-8.dll > exports.txt
+echo LIBRARY libintl-8 > libintl-8.def
+echo EXPORTS >> libintl-8.def
+for /f "skip=90 tokens=4" %%A in (exports.txt) do echo %%A >> libintl-8.def
+echo DllMain >> libintl-8.def
+lib /def:libintl-8.def /out:libintl-8.lib /machine:x64
+
+copy /Y libintl-8.dll ..\..\..
+copy /Y libintl-8.lib ..\..\..
+cd ..\..
+
 echo Setting up curl
 
 if exist curl-8.2.1_11-win64-mingw\ (