[gts] fix build with clang-cl (#26184)

* gts fix dllexport definitions.

* v db

* Revert trailing whitespace addition.

Co-authored-by: Billy O'Neal <bion@microsoft.com>

ports/gts/fix-dllexport_2.patch

@@ -0,0 +1,13 @@
+diff --git a/src/gts.h b/src/gts.h
+index 1b76915..ae1d888 100644
+--- a/src/gts.h
++++ b/src/gts.h
+@@ -38,7 +38,7 @@ extern "C" {
+  * we prefix variable declarations so they can
+  * properly get exported in windows dlls.
+  */
+-#ifdef NATIVE_WIN32
++#if 1
+ #  ifdef GTS_COMPILATION
+ #    define GTS_C_VAR __declspec(dllexport)
+ #  else /* not GTS_COMPILATION */

ports/gts/fix_missing_extern.patch

@@ -0,0 +1,13 @@
+diff --git a/src/gts.h b/src/gts.h
+index 1b7691531..1e87167bc 100644
+--- a/src/gts.h
++++ b/src/gts.h
+@@ -40,7 +40,7 @@ extern "C" {
+  */
+ #if 1
+ #  ifdef GTS_COMPILATION
+-#    define GTS_C_VAR __declspec(dllexport)
++#    define GTS_C_VAR extern __declspec(dllexport)
+ #  else /* not GTS_COMPILATION */
+ #    define GTS_C_VAR extern __declspec(dllimport)
+ #  endif /* not GTS_COMPILATION */

ports/gts/portfile.cmake

@@ -1,7 +1,7 @@
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
     set(patches fix-dllexport.patch)
-else()
-    set(patches "")
+elseif(VCPKG_TARGET_IS_WINDOWS)
+    set(patches fix-dllexport_2.patch fix_missing_extern.patch)
 endif()
 
 vcpkg_from_sourceforge(

ports/gts/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "gts",
   "version": "0.7.6",
-  "port-version": 6,
+  "port-version": 7,
   "description": "3D surfaces meshed with interconnected triangles",
   "homepage": "http://gts.sourceforge.net/",
   "supports": "!osx",

versions/baseline.json

@@ -2750,7 +2750,7 @@
     },
     "gts": {
       "baseline": "0.7.6",
-      "port-version": 6
+      "port-version": 7
     },
     "guetzli": {
       "baseline": "2020-09-14",

versions/g-/gts.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "1bce412085edcd46e3f358cca2c3bb1cffb25cfa",
+      "version": "0.7.6",
+      "port-version": 7
+    },
     {
       "git-tree": "fbe5bc5629f2ec46a083b4e861589cae5b559c5f",
       "version": "0.7.6",