YJIT: Show YJIT build option in RUBY_DESCRIPTION (#6738)

YJIT: Show YJIT profile in RUBY_DESCRIPTION

configure.ac

@@ -3821,6 +3821,9 @@ AS_CASE(["${YJIT_SUPPORT}"],
         LDFLAGS="$LDFLAGS -lpthread -lc++abi"
     ])
     YJIT_OBJ='yjit.$(OBJEXT)'
+    AS_IF([test x"$YJIT_SUPPORT" != "xyes" ], [
+        AC_DEFINE_UNQUOTED(YJIT_SUPPORT, [$YJIT_SUPPORT])
+    ])
     AC_DEFINE(USE_YJIT, 1)
 ], [AC_DEFINE(USE_YJIT, 0)])
 

test/ruby/test_rubyoptions.rb

@@ -14,7 +14,7 @@ class TestRubyOptions < Test::Unit::TestCase
     if mjit_enabled?
       RUBY_DESCRIPTION.sub(/\+MJIT /, '')
     elsif yjit_enabled?
-      RUBY_DESCRIPTION.sub(/\+YJIT /, '')
+      RUBY_DESCRIPTION.sub(/\+YJIT( (dev|dev_nodebug|stats))? /, '')
     else
       RUBY_DESCRIPTION
     end

version.c

@@ -60,6 +60,11 @@ const int ruby_api_version[] = {
 #ifndef RUBY_FULL_REVISION
 # define RUBY_FULL_REVISION RUBY_REVISION
 #endif
+#ifdef YJIT_SUPPORT
+#define YJIT_DESCRIPTION " +YJIT " STRINGIZE(YJIT_SUPPORT)
+#else
+#define YJIT_DESCRIPTION " +YJIT"
+#endif
 const char ruby_version[] = RUBY_VERSION;
 const char ruby_revision[] = RUBY_FULL_REVISION;
 const char ruby_release_date[] = RUBY_RELEASE_DATE;
@@ -67,7 +72,7 @@ const char ruby_platform[] = RUBY_PLATFORM;
 const int ruby_patchlevel = RUBY_PATCHLEVEL;
 const char ruby_description[] = RUBY_DESCRIPTION_WITH("");
 static const char ruby_description_with_mjit[] = RUBY_DESCRIPTION_WITH(" +MJIT");
-static const char ruby_description_with_yjit[] = RUBY_DESCRIPTION_WITH(" +YJIT");
+static const char ruby_description_with_yjit[] = RUBY_DESCRIPTION_WITH(YJIT_DESCRIPTION);
 const char ruby_copyright[] = "ruby - Copyright (C) "
     RUBY_BIRTH_YEAR_STR "-" RUBY_RELEASE_YEAR_STR " "
     RUBY_AUTHOR;