build: add required ICU patch changes

Copied .h file to a patched folder to fix include issues.

tools/icu/patches/75/source/tools/genccode/pkg_genc.h

@@ -0,0 +1,111 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/******************************************************************************
+ *   Copyright (C) 2008-2011, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ *******************************************************************************
+ */
+
+#ifndef __PKG_GENC_H__
+#define __PKG_GENC_H__
+
+#include "unicode/utypes.h"
+#include "toolutil.h"
+
+#include "unicode/putil.h"
+#include "putilimp.h"
+
+/*** Platform #defines move here ***/
+#if U_PLATFORM_HAS_WIN32_API
+#ifdef __GNUC__
+#define WINDOWS_WITH_GNUC
+#else
+#define WINDOWS_WITH_MSVC
+#endif
+#endif
+
+
+#if !defined(WINDOWS_WITH_MSVC)
+#define BUILD_DATA_WITHOUT_ASSEMBLY
+#endif
+
+#ifndef U_DISABLE_OBJ_CODE /* testing */
+#if defined(WINDOWS_WITH_MSVC) || U_PLATFORM_IS_LINUX_BASED
+#define CAN_WRITE_OBJ_CODE
+#endif
+#if U_PLATFORM_HAS_WIN32_API || defined(U_ELF)
+#define CAN_GENERATE_OBJECTS
+#endif
+#endif
+
+#if U_PLATFORM == U_PF_CYGWIN || defined(CYGWINMSVC)
+#define USING_CYGWIN
+#endif
+
+/*
+ * When building the data library without assembly,
+ * some platforms use a single c code file for all of
+ * the data to generate the final data library. This can
+ * increase the performance of the pkdata tool.
+ */
+#if U_PLATFORM == U_PF_OS400
+#define USE_SINGLE_CCODE_FILE
+#endif
+
+/* Need to fix the file seperator character when using MinGW. */
+#if defined(WINDOWS_WITH_GNUC) || defined(USING_CYGWIN)
+#define PKGDATA_FILE_SEP_STRING "/"
+#else
+#define PKGDATA_FILE_SEP_STRING U_FILE_SEP_STRING
+#endif
+
+#define LARGE_BUFFER_MAX_SIZE 2048
+#define SMALL_BUFFER_MAX_SIZE 512
+#define SMALL_BUFFER_FLAG_NAMES 32
+#define BUFFER_PADDING_SIZE 20
+
+/** End platform defines **/
+
+
+
+U_CAPI void U_EXPORT2
+printAssemblyHeadersToStdErr(void);
+
+U_CAPI UBool U_EXPORT2
+checkAssemblyHeaderName(const char* optAssembly);
+
+U_CAPI UBool U_EXPORT2
+checkCpuArchitecture(const char* optCpuArch);
+
+U_CAPI void U_EXPORT2
+writeCCode(
+    const char *filename,
+    const char *destdir,
+    const char *optEntryPoint,
+    const char *optName,
+    const char *optFilename,
+    char *outFilePath,
+    size_t outFilePathCapacity);
+
+U_CAPI void U_EXPORT2
+writeAssemblyCode(
+    const char *filename,
+    const char *destdir,
+    const char *optEntryPoint,
+    const char *optFilename,
+    char *outFilePath,
+    size_t outFilePathCapacity);
+
+U_CAPI void U_EXPORT2
+writeObjectCode(
+    const char *filename,
+    const char *destdir,
+    const char *optEntryPoint,
+    const char *optMatchArch,
+    const char *optCpuArch,
+    const char *optFilename,
+    char *outFilePath,
+    size_t outFilePathCapacity,
+    UBool optWinDllExport);
+
+#endif