Revert "Revert "_FoundationUnicode: apply symbol renaming for non-Darwin targ…" (#66)

This reverts commit 1323bae.

Author: compnerd

CMakeLists.txt

@@ -45,7 +45,7 @@ add_compile_definitions(
     $<$<COMPILE_LANGUAGE:C,CXX>:U_HAVE_STRTOD_L=1>
     $<$<COMPILE_LANGUAGE:C,CXX>:U_HAVE_XLOCALE_H=1>
     $<$<COMPILE_LANGUAGE:C,CXX>:U_HAVE_STRING_VIEW=1>
-    $<$<COMPILE_LANGUAGE:C,CXX>:U_DISABLE_RENAMING=1>
+    $<$<COMPILE_LANGUAGE:C,CXX>:U_DISABLE_RENAMING=$<IF:$<PLATFORM_ID:Darwin>,1,0>>
     $<$<COMPILE_LANGUAGE:C,CXX>:U_COMBINED_IMPLEMENTATION>
     $<$<COMPILE_LANGUAGE:C,CXX>:U_COMMON_IMPLEMENTATION>
     $<$<COMPILE_LANGUAGE:C,CXX>:U_I18N_IMPLEMENTATION>

Package.swift

@@ -34,7 +34,23 @@ var buildSettings: [CXXSetting] = [
   .define("U_HAVE_STRTOD_L", to: "1"),
   .define("U_HAVE_XLOCALE_H", to: "1"),
   .define("U_HAVE_STRING_VIEW", to: "1"),
-  .define("U_DISABLE_RENAMING", to: "1"),
+  .define(
+    "U_DISABLE_RENAMING", to: "1",
+    .when(platforms: [
+      .macOS,
+      .iOS,
+      .tvOS,
+      .watchOS,
+      .visionOS,
+    ])),
+  .define(
+    "U_DISABLE_RENAMING", to: "0",
+    .when(platforms: [
+      .linux,
+      .windows,
+      .android,
+      .wasi,
+    ])),
   .define("U_COMBINED_IMPLEMENTATION"),
   .define("U_COMMON_IMPLEMENTATION"),
   .define("U_I18N_IMPLEMENTATION"),

icuSources/include/_foundation_unicode/uconfig.h

@@ -101,9 +101,13 @@
 #ifndef U_DISABLE_RENAMING
 #if APPLE_ICU_CHANGES
 //rdar://60884991 #58 Replace installsrc patching with changes directly in header files
+#if defined(__APPLE__)
 #define U_DISABLE_RENAMING 1
 #else
 #define U_DISABLE_RENAMING 0
+#endif
+#else
+#define U_DISABLE_RENAMING 0
 #endif // APPLE_ICU_CHANGES
 #endif