[libffi] Update to 3.4.6, enable wasm32 (#36876)

ports/libffi/fix_undefind_func.patch

@@ -1,28 +0,0 @@
-diff --git a/include/ffi_common.h b/include/ffi_common.h
-index 2bd31b0..c53a794 100644
---- a/include/ffi_common.h
-+++ b/include/ffi_common.h
-@@ -128,6 +128,10 @@ void *ffi_data_to_code_pointer (void *data) FFI_HIDDEN;
-    static trampoline. */
- int ffi_tramp_is_present (void *closure) FFI_HIDDEN;
- 
-+/* Return a file descriptor of a temporary zero-sized file in a
-+   writable and executable filesystem. */
-+int open_temp_exec_file(void) FFI_HIDDEN;
-+
- /* Extended cif, used in callback from assembly routine */
- typedef struct
- {
-diff --git a/src/tramp.c b/src/tramp.c
-index b9d273a..90efb07 100644
---- a/src/tramp.c
-+++ b/src/tramp.c
-@@ -39,6 +39,8 @@
- #ifdef __linux__
- #define _GNU_SOURCE 1
- #endif
-+#include <ffi.h>
-+#include <ffi_common.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <stdlib.h>

ports/libffi/portfile.cmake

@@ -1,23 +1,22 @@
 vcpkg_download_distfile(ARCHIVE
     URLS "https://github.com/libffi/libffi/releases/download/v${VERSION}/libffi-${VERSION}.tar.gz"
     FILENAME "libffi-${VERSION}.tar.gz"
-    SHA512 88680aeb0fa0dc0319e5cd2ba45b4b5a340bc9b4bcf20b1e0613b39cd898f177a3863aa94034d8e23a7f6f44d858a53dcd36d1bb8dee13b751ef814224061889
+    SHA512 033d2600e879b83c6bce0eb80f69c5f32aa775bf2e962c9d39fbd21226fa19d1e79173d8eaa0d0157014d54509ea73315ad86842356fc3a303c0831c94c6ab39
 )
 vcpkg_extract_source_archive(
     SOURCE_PATH
     ARCHIVE "${ARCHIVE}"
     PATCHES
         dll-bindir.diff
-        fix_undefind_func.patch
 )
 
 vcpkg_list(SET options)
 if(VCPKG_TARGET_IS_WINDOWS)
-    set(extra_cflags "-DFFI_BUILDING")
+    set(linkage_flag "-DFFI_STATIC_BUILD")
     if(VCPKG_LIBRARY_LINKAGE STREQUAL "dynamic")
-        string(APPEND extra_cflags " -DFFI_BUILDING_DLL")
+        set(linkage_flag "-DFFI_BUILDING_DLL")
     endif()
-    vcpkg_list(APPEND options "CFLAGS=\${CFLAGS} ${extra_cflags}")
+    vcpkg_list(APPEND options "CFLAGS=\${CFLAGS} ${linkage_flag}")
 endif()
 
 set(ccas_options "")
@@ -42,9 +41,14 @@ vcpkg_add_to_path("${ccas_dir}")
 cmake_path(GET ccas FILENAME ccas_command)
 vcpkg_list(APPEND options "CCAS=${ccas_command}${ccas_options}")
 
+set(configure_triplets DETERMINE_BUILD_TRIPLET)
+if(VCPKG_TARGET_IS_EMSCRIPTEN)
+    set(configure_triplets BUILD_TRIPLET "--host=wasm32-unknown-emscripten --build=\$(\$SHELL \"${SOURCE_PATH}/config.guess\")")
+endif()
+
 vcpkg_configure_make(
     SOURCE_PATH "${SOURCE_PATH}"
-    DETERMINE_BUILD_TRIPLET
+    ${configure_triplets}
     USE_WRAPPERS
     OPTIONS
         --enable-portable-binary
@@ -58,7 +62,7 @@ vcpkg_copy_pdbs()
 vcpkg_fixup_pkgconfig()
 
 if (VCPKG_LIBRARY_LINKAGE STREQUAL "static")
-    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/ffi.h" "!defined FFI_BUILDING" "0")
+    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/ffi.h" "defined(FFI_STATIC_BUILD)" "1")
 endif()
 
 file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/usage" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}")

ports/libffi/vcpkg.json

@@ -1,7 +1,6 @@
 {
   "name": "libffi",
-  "version": "3.4.4",
-  "port-version": 6,
+  "version": "3.4.6",
   "description": "Portable, high level programming interface to various calling conventions",
   "homepage": "https://github.com/libffi/libffi",
   "license": "MIT",

versions/baseline.json

@@ -4329,8 +4329,8 @@
       "port-version": 2
     },
     "libffi": {
-      "baseline": "3.4.4",
-      "port-version": 6
+      "baseline": "3.4.6",
+      "port-version": 0
     },
     "libfido2": {
       "baseline": "1.13.0",

versions/l-/libffi.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "0ad381012102db5da196161ba7fc0a03a4dcb982",
+      "version": "3.4.6",
+      "port-version": 0
+    },
     {
       "git-tree": "982248d325407b09d26ad0d929f67fd0b873f984",
       "version": "3.4.4",