cmake-devel-gui: fix CMAKE_ROOT for cmake-gui

CMake code for cmake-gui looks inside app bundle for CMAKE_ROOT,
this patches it to look in MacPorts $prefix.

See: https://trac.macports.org/ticket/62855

devel/cmake-devel/Portfile

@@ -41,7 +41,7 @@ version             20230810-3.27.2-[string range ${gitlab.version} 0 7]
 checksums           rmd160  7a30991369c51f9d0e6875d6ba40d10c31730fb6 \
                     sha256  4ecc149a24251b3d6ba12e00893b5265fff580755c8630e8512cc56692cfff98 \
                     size    8423256
-revision            0
+revision            1
 
 epoch               1
 
@@ -76,7 +76,8 @@ patchfiles-append \
     patch-fix-clock_gettime-test.diff \
     patch-qt5gui.diff \
     patch-cmake-cmInstallRuntime-initializer-fix.diff \
-    patch-uv_spawn.diff
+    patch-uv_spawn.diff \
+    patch-cmakeroot-with-app.diff
 
 depends_lib-append \
     port:curl \
@@ -188,7 +189,8 @@ post-patch {
     # patch PREFIX
     reinplace "s|__PREFIX__|${prefix}|g" \
         ${worksrcpath}/macports.cmake \
-        ${worksrcpath}/Modules/Platform/Darwin.cmake
+        ${worksrcpath}/Modules/Platform/Darwin.cmake \
+        ${worksrcpath}/Source/cmSystemTools.cxx
 
     # patch FRAMEWORKS
     reinplace "s|__FRAMEWORKS_DIR__|${frameworks_dir}|g" \

devel/cmake-devel/files/patch-cmakeroot-with-app.diff

@@ -0,0 +1,13 @@
+Addresses https://trac.macports.org/ticket/62855
+
+--- Source/cmSystemTools.cxx.orig	2023-03-08 20:04:09.000000000 +0100
++++ Source/cmSystemTools.cxx	2023-07-25 11:24:23.000000000 +0200
+@@ -2570,6 +2570,8 @@
+     exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
+     if (cmSystemTools::FileExists(exe_dir + CMAKE_BIN_DIR "/cmake")) {
+       exe_dir += CMAKE_BIN_DIR;
++    } else if (cmSystemTools::FileExists("__PREFIX__" CMAKE_BIN_DIR "/cmake")) {
++        exe_dir = cmSystemTools::GetFilenamePath("__PREFIX__" CMAKE_BIN_DIR "/cmake");
+     } else {
+       exe_dir = cmSystemTools::GetFilenamePath(exe_dir);
+       exe_dir = cmSystemTools::GetFilenamePath(exe_dir);