Enable illumos gss support.  It is incorrectly assumed to be heimdal--do not add to libcurl.pc file
--- curl-8.11.0/configure.ac.~1~	2024-11-06 02:09:19.000000000 -0500
+++ curl-8.11.0/configure.ac	2024-11-09 18:58:22.382807139 -0500
@@ -2043,6 +2043,9 @@
             *-hp-hpux*)
               gss_libname="gss"
               ;;
+            *sunos*)
+              gss_libname="gss"
+              ;;
             *)
               gss_libname="gssapi"
               ;;
@@ -2064,14 +2067,14 @@
         LIBS="-lgss $LIBS"
         ;;
       *)
-        LIBS="-lgssapi $LIBS"
+        LIBS="-lgss $LIBS"
         ;;
     esac
   fi
   if test -n "$gnu_gss"; then
     LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE gss"
   elif test "x$not_mit" = "x1"; then
-    LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE heimdal-gssapi"
+    LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE"
   else
     LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE mit-krb5-gssapi"
   fi