Add package widl

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

index.html

@@ -2409,6 +2409,10 @@ local-pkg-list: $(LOCAL_PKG_LIST)</pre>
         <td class="package">wget</td>
         <td class="website"><a href="https://www.gnu.org/software/wget/">wget</a></td>
     </tr>
+    <tr>
+        <td class="package">widl</td>
+        <td class="website"><a href="https://www.winehq.org/docs/widl/">Wine IDL Compiler</a></td>
+    </tr>
     <tr>
         <td class="package">winpcap</td>
         <td class="website"><a href="http://www.winpcap.org/">WinPcap</a></td>

src/widl.mk

@@ -0,0 +1,27 @@
+# This file is part of MXE.
+# See index.html for further information.
+
+# WIDL is called "Wine IDL Compiler"; but we use mingw-w64's copy of it to
+# avoid downloading Wine's entire tree.
+
+PKG             := widl
+$(PKG)_IGNORE    = $(mingw-w64_IGNORE)
+$(PKG)_VERSION   = $(mingw-w64_VERSION)
+$(PKG)_CHECKSUM  = $(mingw-w64_CHECKSUM)
+$(PKG)_SUBDIR    = $(mingw-w64_SUBDIR)
+$(PKG)_FILE      = $(mingw-w64_FILE)
+$(PKG)_URL       = $(mingw-w64_URL)
+$(PKG)_DEPS     :=
+
+define $(PKG)_UPDATE
+    echo $(mingw-w64_VERSION)
+endef
+
+define $(PKG)_BUILD
+    cd '$(1)/mingw-w64-tools/widl' && ./configure \
+        --host='$(BUILD)' \
+        --build='$(BUILD)' \
+        --prefix='$(PREFIX)' \
+        --target='$(TARGET)'
+    $(MAKE) -C '$(1)/mingw-w64-tools/widl' -j '$(JOBS)' install
+endef