From 2d2351af56569fc3cd9213c35aaabd30e82e39fe Mon Sep 17 00:00:00 2001
From: Earlopain <14981592+Earlopain@users.noreply.github.com>
Date: Sat, 28 Mar 2026 00:25:00 +0100
Subject: [PATCH] Remove unused compile options/jobs (#16583)

SYMBOL_GC removed in https://github.com/ruby/ruby/commit/2bcb155b49bb421ee82c0d5980546a5071113407
THREAD_CACHE removed in https://github.com/ruby/ruby/commit/be1bbd5b7d40ad863ab35097765d3754726bbd54
BIGNUM_DEBUG removed in https://github.com/ruby/ruby/commit/e60cd14d85b35c9e60485e640c08eebf539c1cfc
---
 .github/workflows/compilers.yml | 3 ---
 bignum.c                        | 5 -----
 symbol.c                        | 7 -------
 3 files changed, 15 deletions(-)

diff --git a/.github/workflows/compilers.yml b/.github/workflows/compilers.yml
index f678eabd1c..0c3fce5bcc 100644
--- a/.github/workflows/compilers.yml
+++ b/.github/workflows/compilers.yml
@@ -221,7 +221,6 @@ jobs:
       - { uses: './.github/actions/compilers', name: 'NDEBUG',                         with: { cppflags: '-DNDEBUG' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'RUBY_DEBUG',                     with: { cppflags: '-DRUBY_DEBUG' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'ARRAY_DEBUG',                    with: { cppflags: '-DARRAY_DEBUG' }, timeout-minutes: 5 }
-      - { uses: './.github/actions/compilers', name: 'BIGNUM_DEBUG',                   with: { cppflags: '-DBIGNUM_DEBUG' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'CCAN_LIST_DEBUG',                with: { cppflags: '-DCCAN_LIST_DEBUG' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'CPDEBUG=-1',                     with: { cppflags: '-DCPDEBUG=-1' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'ENC_DEBUG',                      with: { cppflags: '-DENC_DEBUG' }, timeout-minutes: 5 }
@@ -259,8 +258,6 @@ jobs:
         with: { sparse-checkout-cone-mode: false, sparse-checkout: /.github, persist-credentials: false }
       - { uses: './.github/actions/setup/directories', with: { srcdir: 'src', builddir: 'build', makeup: true, fetch-depth: 10 } }
       - { uses: './.github/actions/compilers', name: 'USE_LAZY_LOAD',                  with: { cppflags: '-DUSE_LAZY_LOAD' }, timeout-minutes: 5 }
-      - { uses: './.github/actions/compilers', name: 'USE_SYMBOL_GC=0',                with: { cppflags: '-DUSE_SYMBOL_GC=0' }, timeout-minutes: 5 }
-      - { uses: './.github/actions/compilers', name: 'USE_THREAD_CACHE=0',             with: { cppflags: '-DUSE_THREAD_CACHE=0' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'USE_RUBY_DEBUG_LOG=1',           with: { cppflags: '-DUSE_RUBY_DEBUG_LOG=1' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'USE_DEBUG_COUNTER',              with: { cppflags: '-DUSE_DEBUG_COUNTER=1' }, timeout-minutes: 5 }
       - { uses: './.github/actions/compilers', name: 'SHARABLE_MIDDLE_SUBSTRING',      with: { cppflags: '-DSHARABLE_MIDDLE_SUBSTRING=1' }, timeout-minutes: 5 }
diff --git a/bignum.c b/bignum.c
index f5c58ab743..11dff4d139 100644
--- a/bignum.c
+++ b/bignum.c
@@ -2943,11 +2943,6 @@ bary_divmod(BDIGIT *qds, size_t qn, BDIGIT *rds, size_t rn, const BDIGIT *xds, s
     }
 }
 
-
-#ifndef BIGNUM_DEBUG
-# define BIGNUM_DEBUG (0+RUBY_DEBUG)
-#endif
-
 static int
 bigzero_p(VALUE x)
 {
diff --git a/symbol.c b/symbol.c
index 85340be3a7..d3d7e13ea4 100644
--- a/symbol.c
+++ b/symbol.c
@@ -27,13 +27,6 @@
 #include "builtin.h"
 #include "ruby/internal/attr/nonstring.h"
 
-#if defined(USE_SYMBOL_GC) && !(USE_SYMBOL_GC+0)
-# undef USE_SYMBOL_GC
-# define USE_SYMBOL_GC 0
-#else
-# undef USE_SYMBOL_GC
-# define USE_SYMBOL_GC 1
-#endif
 #if defined(SYMBOL_DEBUG) && (SYMBOL_DEBUG+0)
 # undef SYMBOL_DEBUG
 # define SYMBOL_DEBUG 1