https://bugs.gentoo.org/892029
https://core.tcl-lang.org/tcltls/tktview?name=37bbdb9fb2
--- a/unix/configure.in
+++ b/unix/configure.in
@@ -866,9 +866,9 @@ if test "$FRAMEWORK_BUILD" = "1" ; then
     test -z "$TCL_MODULE_PATH"  && \
 	TCL_MODULE_PATH="~/Library/Tcl /Library/Tcl"
 elif test "$prefix/lib" != "$libdir"; then
-    test -z "$TCL_PACKAGE_PATH" && TCL_PACKAGE_PATH="{${libdir}} {${prefix}/lib} ${TCL_PACKAGE_PATH}"
+    test -z "$TCL_PACKAGE_PATH" && TCL_PACKAGE_PATH="${libdir} ${prefix}/lib ${TCL_PACKAGE_PATH}"
 else
-    test -z "$TCL_PACKAGE_PATH" && TCL_PACKAGE_PATH="{${prefix}/lib} ${TCL_PACKAGE_PATH}"
+    test -z "$TCL_PACKAGE_PATH" && TCL_PACKAGE_PATH="${prefix}/lib ${TCL_PACKAGE_PATH}"
 fi
 
 #--------------------------------------------------------------------