--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/leptonica/src/libversions.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,208 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+/*!
+ * \file libversions.c
+ * <pre>
+ *
+ *       Image library version number
+ *           char      *getImagelibVersions()
+ * </pre>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config_auto.h>
+#endif  /* HAVE_CONFIG_H */
+
+#include "allheaders.h"
+
+#if HAVE_LIBGIF
+#include "gif_lib.h"
+#endif
+
+#if HAVE_LIBJPEG
+/* jpeglib.h includes jconfig.h, which makes the error of setting
+ *   #define HAVE_STDLIB_H
+ * which conflicts with config_auto.h (where it is set to 1) and results
+ * for some gcc compiler versions in a warning.  The conflict is harmless
+ * but we suppress it by undefining the variable. */
+#undef HAVE_STDLIB_H
+#include "jpeglib.h"
+#include "jerror.h"
+#endif
+
+#if HAVE_LIBPNG
+#include "png.h"
+#endif
+
+#if HAVE_LIBTIFF
+#include "tiffio.h"
+#endif
+
+#if HAVE_LIBZ
+#include "zlib.h"
+#endif
+
+#if HAVE_LIBWEBP
+#include "webp/encode.h"
+#endif
+
+#if HAVE_LIBJP2K
+  #ifdef LIBJP2K_HEADER
+    #include LIBJP2K_HEADER
+  #else
+    #include <openjpeg.h>
+  #endif
+#endif
+
+
+/*---------------------------------------------------------------------*
+ *                    Image Library Version number                     *
+ *---------------------------------------------------------------------*/
+/*!
+ * \brief   getImagelibVersions()
+ *
+ * <pre>
+ * Notes:
+ *      (1) This returns a string of version numbers; e.g.,
+ *            libgif 5.1.4
+ *            libjpeg 8b (libjpeg-turbo 2.0.3)
+ *            libpng 1.6.37
+ *            libtiff 4.1.0
+ *            zlib 1.2.11
+ *            libwebp 0.6.1
+ *            libopenjp2 2.5.0
+ *      (2) The caller must free the memory.
+ * </pre>
+ */
+char *
+getImagelibVersions(void)
+{
+#if HAVE_LIBGIF || HAVE_LIBJPEG
+char     buf[128];
+#endif
+l_int32  first = TRUE;
+#if HAVE_LIBJPEG || HAVE_LIBTIFF
+char    *versionNumP;
+char    *nextTokenP;
+#endif
+char    *versionStrP = NULL;
+
+#if HAVE_LIBGIF
+    first = FALSE;
+    stringJoinIP(&versionStrP, "libgif ");
+  #ifdef GIFLIB_MAJOR
+    snprintf(buf, sizeof(buf), "%d.%d.%d", GIFLIB_MAJOR, GIFLIB_MINOR,
+             GIFLIB_RELEASE);
+  #else
+    stringCopy(buf, "4.1.6(?)", sizeof(buf));
+  #endif
+    stringJoinIP(&versionStrP, buf);
+#endif  /* HAVE_LIBGIF */
+
+#if HAVE_LIBJPEG
+    {
+    struct jpeg_compress_struct  cinfo = { 0 };
+    struct jpeg_error_mgr        err = { 0 };
+    char                         buffer[JMSG_LENGTH_MAX];
+    cinfo.err = jpeg_std_error(&err);
+    err.msg_code = JMSG_VERSION;
+    (*err.format_message) ((j_common_ptr ) &cinfo, buffer);
+
+    if (!first) stringJoinIP(&versionStrP, " : ");
+    first = FALSE;
+    stringJoinIP(&versionStrP, "libjpeg ");
+    versionNumP = strtokSafe(buffer, " ", &nextTokenP);
+    stringJoinIP(&versionStrP, versionNumP);
+    LEPT_FREE(versionNumP);
+
+  #if defined(LIBJPEG_TURBO_VERSION)
+        /* To stringify the result of expansion of a macro argument,
+         * you must use two levels of macros.  See:
+         *   https://gcc.gnu.org/onlinedocs/cpp/Stringification.html  */
+    #define l_xstr(s) l_str(s)
+    #define l_str(s) #s
+    snprintf(buf, sizeof(buf), " (libjpeg-turbo %s)",
+             l_xstr(LIBJPEG_TURBO_VERSION));
+    stringJoinIP(&versionStrP, buf);
+  #endif  /* LIBJPEG_TURBO_VERSION */
+    }
+#endif  /* HAVE_LIBJPEG */
+
+#if HAVE_LIBPNG
+    if (!first) stringJoinIP(&versionStrP, " : ");
+    first = FALSE;
+    stringJoinIP(&versionStrP, "libpng ");
+    stringJoinIP(&versionStrP, png_get_libpng_ver(NULL));
+#endif  /* HAVE_LIBPNG */
+
+#if HAVE_LIBTIFF
+    if (!first) stringJoinIP(&versionStrP, " : ");
+    first = FALSE;
+    stringJoinIP(&versionStrP, "libtiff ");
+    versionNumP = strtokSafe((char *)TIFFGetVersion(), " \n", &nextTokenP);
+    LEPT_FREE(versionNumP);
+    versionNumP = strtokSafe(NULL, " \n", &nextTokenP);
+    LEPT_FREE(versionNumP);
+    versionNumP = strtokSafe(NULL, " \n", &nextTokenP);
+    stringJoinIP(&versionStrP, versionNumP);
+    LEPT_FREE(versionNumP);
+#endif  /* HAVE_LIBTIFF */
+
+#if HAVE_LIBZ
+    if (!first) stringJoinIP(&versionStrP, " : ");
+    first = FALSE;
+    stringJoinIP(&versionStrP, "zlib ");
+    stringJoinIP(&versionStrP, ZLIB_VERSION);
+#endif  /* HAVE_LIBZ */
+
+#if HAVE_LIBWEBP
+    {
+    l_int32 val;
+    char buf[32];
+    if (!first) stringJoinIP(&versionStrP, " : ");
+    first = FALSE;
+    stringJoinIP(&versionStrP, "libwebp ");
+    val = WebPGetEncoderVersion();
+    snprintf(buf, sizeof(buf), "%d.%d.%d", val >> 16, (val >> 8) & 0xff,
+             val & 0xff);
+    stringJoinIP(&versionStrP, buf);
+    }
+#endif  /* HAVE_LIBWEBP */
+
+#if HAVE_LIBJP2K
+    {
+    const char *version;
+    if (!first) stringJoinIP(&versionStrP, " : ");
+    first = FALSE;
+    stringJoinIP(&versionStrP, "libopenjp2 ");
+    version = opj_version();
+    stringJoinIP(&versionStrP, version);
+    }
+#endif  /* HAVE_LIBJP2K */
+
+    return versionStrP;
+}