--- libcaca-0.99.beta20/configure.ac.orig	2021-12-05 21:13:36.396548611 +0100
+++ libcaca-0.99.beta20/configure.ac	2021-12-05 21:15:11.839364886 +0100
@@ -491,8 +491,8 @@ if test "${enable_ruby}" != "no"; then
   if test "${RUBY}" != "no"; then
     RUBY_CFLAGS="$("${RUBY}" -r mkmf -e 'conf = RbConfig::CONFIG.merge("hdrdir" => $hdrdir, "arch_hdrdir" => $arch_hdrdir); print RbConfig::expand("#$INCFLAGS", conf)')"
     RUBY_LIBS="-L$("${RUBY}" -r rbconfig -e 'print RbConfig::CONFIG@<:@"libdir"@:>@') -l$("${RUBY}" -r rbconfig -e 'print RbConfig::CONFIG@<:@"RUBY_SO_NAME"@:>@')"
-    RUBY_SITEARCHDIR=`"${RUBY}" -r rbconfig -e 'print RbConfig::CONFIG@<:@"sitearchdir"@:>@'`
-    RUBY_SITELIBDIR=`"${RUBY}" -r rbconfig -e 'print RbConfig::CONFIG@<:@"sitelibdir"@:>@'`
+    RUBY_SITEARCHDIR=`"${RUBY}" -r rbconfig -e 'print RbConfig::CONFIG@<:@"vendorarchdir"@:>@'`
+    RUBY_SITELIBDIR=`"${RUBY}" -r rbconfig -e 'print RbConfig::CONFIG@<:@"vendorlibdir"@:>@'`
     AC_SUBST(RUBY_CFLAGS)
     AC_SUBST(RUBY_LIBS)
     AC_SUBST(RUBY_SITEARCHDIR)