--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/leptonica/src/pdfio2stub.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,167 @@
+/*====================================================================*
+ -  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 pdfio2stub.c
+ * <pre>
+ *
+ *     Stubs for pdfio2.c functions
+ * </pre>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config_auto.h>
+#endif  /* HAVE_CONFIG_H */
+
+#include "allheaders.h"
+
+/* --------------------------------------------*/
+#if  !USE_PDFIO   /* defined in environ.h */
+/* --------------------------------------------*/
+
+/* ----------------------------------------------------------------------*/
+
+l_ok pixConvertToPdfData(PIX *pix, l_int32 type, l_int32 quality,
+                         l_uint8 **pdata, size_t *pnbytes,
+                         l_int32 x, l_int32 y, l_int32 res,
+                         const char *title,
+                         L_PDF_DATA **plpd, l_int32 position)
+{
+    return ERROR_INT("function not present", __func__, 1);
+}
+
+/* ----------------------------------------------------------------------*/
+
+l_ok ptraConcatenatePdfToData(L_PTRA *pa_data, SARRAY *sa,
+                              l_uint8 **pdata, size_t *pnbytes)
+{
+    return ERROR_INT("function not present", __func__, 1);
+}
+
+/* ----------------------------------------------------------------------*/
+
+l_ok convertTiffMultipageToPdf(const char *filein, const char *fileout)
+{
+    return ERROR_INT("function not present", __func__, 1);
+}
+
+/* ----------------------------------------------------------------------*/
+
+l_ok l_generateCIDataForPdf(const char *fname, PIX *pix, l_int32 quality,
+                            L_COMP_DATA **pcid)
+{
+    return ERROR_INT("function not present", __func__, 1);
+}
+
+/* ----------------------------------------------------------------------*/
+
+L_COMP_DATA * l_generateFlateDataPdf(const char *fname, PIX *pix)
+{
+    return (L_COMP_DATA *)ERROR_PTR("function not present", __func__, NULL);
+}
+
+/* ----------------------------------------------------------------------*/
+
+L_COMP_DATA * l_generateJpegData(const char *fname, l_int32 ascii85flag)
+{
+    return (L_COMP_DATA *)ERROR_PTR("function not present", __func__, NULL);
+}
+
+/* ----------------------------------------------------------------------*/
+
+L_COMP_DATA * l_generateJpegDataMem(l_uint8 *data, size_t nbytes,
+                                    l_int32 ascii85flag)
+{
+    return (L_COMP_DATA *)ERROR_PTR("function not present", __func__, NULL);
+}
+
+/* ----------------------------------------------------------------------*/
+
+l_ok l_generateCIData(const char *fname, l_int32 type, l_int32 quality,
+                      l_int32 ascii85, L_COMP_DATA **pcid)
+{
+    return ERROR_INT("function not present", __func__, 1);
+}
+
+/* ----------------------------------------------------------------------*/
+
+l_ok pixGenerateCIData(PIX *pixs, l_int32 type, l_int32 quality,
+                       l_int32 ascii85, L_COMP_DATA **pcid)
+{
+    return ERROR_INT("function not present", __func__, 1);
+}
+
+/* ----------------------------------------------------------------------*/
+
+L_COMP_DATA * l_generateFlateData(const char *fname, l_int32 ascii85flag)
+{
+    return (L_COMP_DATA *)ERROR_PTR("function not present", __func__, NULL);
+}
+
+/* ----------------------------------------------------------------------*/
+
+L_COMP_DATA * l_generateG4Data(const char *fname, l_int32 ascii85flag)
+{
+    return (L_COMP_DATA *)ERROR_PTR("function not present", __func__, NULL);
+}
+
+/* ----------------------------------------------------------------------*/
+
+l_ok cidConvertToPdfData(L_COMP_DATA *cid, const char *title,
+                         l_uint8 **pdata, size_t *pnbytes)
+{
+    return ERROR_INT("function not present", __func__, 1);
+}
+
+/* ----------------------------------------------------------------------*/
+
+void l_CIDataDestroy(L_COMP_DATA  **pcid)
+{
+    L_ERROR("function not present\n", __func__);
+    return;
+}
+
+/* ----------------------------------------------------------------------*/
+
+void l_pdfSetG4ImageMask(l_int32 flag)
+{
+    L_ERROR("function not present\n", __func__);
+    return;
+}
+
+/* ----------------------------------------------------------------------*/
+
+void l_pdfSetDateAndVersion(l_int32 flag)
+{
+    L_ERROR("function not present\n", __func__);
+    return;
+}
+
+/* ----------------------------------------------------------------------*/
+
+/* --------------------------------------------*/
+#endif  /* !USE_PDFIO */
+/* --------------------------------------------*/