[libidn2] Fix linking static libidn2 into shared library (#29749)

ports/libidn2/fix-static-into-shared-linking.patch

@@ -0,0 +1,30 @@
+--- a/lib/puny_decode.c
++++ b/lib/puny_decode.c
+@@ -242,12 +242,3 @@
+   /* cannot overflow because out <= old value of *output_length */
+   return punycode_success;
+ }
+-
+-/* Create a compatibility symbol if supported.  Hidden references make
+-   the target symbol hidden, hence the alias.  */
+-#ifdef HAVE_SYMVER_ALIAS_SUPPORT
+-__typeof__ (_idn2_punycode_decode_internal) _idn2_punycode_decode
+-  __attribute__((visibility ("default"),
+-		 alias ("_idn2_punycode_decode_internal")));
+-__asm__ (".symver _idn2_punycode_decode, _idn2_punycode_decode@IDN2_0.0.0");
+-#endif
+--- a/lib/puny_encode.c
++++ b/lib/puny_encode.c
+@@ -243,12 +243,3 @@
+   *output_length = out;
+   return punycode_success;
+ }
+-
+-/* Create a compatibility symbol if supported.  Hidden references make
+-   the target symbol hidden, hence the alias.  */
+-#ifdef HAVE_SYMVER_ALIAS_SUPPORT
+-__typeof__ (_idn2_punycode_encode_internal) _idn2_punycode_encode
+-  __attribute__((visibility ("default"),
+-		 alias ("_idn2_punycode_encode_internal")));
+-__asm__ (".symver _idn2_punycode_encode, _idn2_punycode_encode@IDN2_0.0.0");
+-#endif

ports/libidn2/portfile.cmake

@@ -8,10 +8,18 @@ vcpkg_download_distfile(ARCHIVE
     SHA512 a6e90ccef56cfd0b37e3333ab3594bb3cec7ca42a138ca8c4f4ce142da208fa792f6c78ca00c01001c2bc02831abcbaf1cf9bcc346a5290fd7b30708f5a462f3
 )
 
+vcpkg_list(SET patches)
+if (VCPKG_LIBRARY_LINKAGE STREQUAL "static")
+    # Fix linking static libidn2 into shared library
+    # https://gitlab.com/libidn/libidn2/-/issues/80
+    vcpkg_list(APPEND patches "fix-static-into-shared-linking.patch")
+endif()
+
 vcpkg_extract_source_archive(SOURCE_PATH
     ARCHIVE "${ARCHIVE}"
     SOURCE_BASE "v${VERSION}"
     PATCHES
+        ${patches}
         disable-subdirs.patch
         fix-msvc.patch
         fix-uwp.patch

ports/libidn2/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "libidn2",
   "version": "2.3.4",
-  "port-version": 1,
+  "port-version": 2,
   "description": "GNU Libidn is an implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names.",
   "homepage": "https://www.gnu.org/software/libidn/",
   "license": null,

versions/baseline.json

@@ -4010,7 +4010,7 @@
     },
     "libidn2": {
       "baseline": "2.3.4",
-      "port-version": 1
+      "port-version": 2
     },
     "libigl": {
       "baseline": "2.3.0",

versions/l-/libidn2.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "4784d5f7f99d7ea1ebe6f1ef01943e402e7bfddf",
+      "version": "2.3.4",
+      "port-version": 2
+    },
     {
       "git-tree": "111b9ff4af9664333f73344385dfbbfa40d9bc20",
       "version": "2.3.4",