Merge pull request #8 from compnerd/static

build: indicate that we are building ICU statically

Author: parkera

Package.swift

@@ -7,6 +7,7 @@ let buildSettings: [CXXSetting] = [
     .define("DEBUG", to: "1", .when(configuration: .debug)),
     .define("U_SHOW_CPLUSPLUS_API", to: "1"),
     .define("U_SHOW_INTERNAL_API", to: "1"),
+    .define("U_STATIC_IMPLEMENTATION"),
     .define("U_TIMEZONE", to: "timezone"),
     .define("U_TIMEZONE_PACKAGE", to: "\"icutz44l\""),
     .define("FORTIFY_SOURCE", to: "2"),
@@ -101,4 +102,4 @@ fileprivate extension Array {
         me.append(contentsOf: other)
         return me
     }
-}
+}