From 8635510e2ff1621f671440a527f463f387b8d7f4 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Tue, 12 May 2026 22:07:39 +0900
Subject: RDoc is now a bundled gem, run by full set ruby

---
 common.mk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common.mk b/common.mk
index 883fa1d2e8..b1debdebc9 100644
--- a/common.mk
+++ b/common.mk
@@ -69,7 +69,9 @@ LIBRUBY_EXTS  = ./.libruby-with-ext.time
 REVISION_H    = ./.revision.time
 PLATFORM_D    = $(TIMESTAMPDIR)/.$(PLATFORM_DIR).time
 ENC_TRANS_D   = $(TIMESTAMPDIR)/.enc-trans.time
-RDOC          = $(XRUBY) "$(tooldir)/rdoc-srcdir"
+X_$(no_baseruby:no=NO_)BASERUBY = $(BASERUBY)
+X_$(yes_baseruby:yes=NO_)BASERUBY = $(XRUBY)
+RDOC          = $(X_BASERUBY) --enable-gems "$(tooldir)/rdoc-srcdir"
 RDOCOUT       = $(EXTOUT)/rdoc
 HTMLOUT       = $(EXTOUT)/html
 CAPIOUT       = doc/capi
-- 
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