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-rw-r--r--test/fiddle/helper.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/fiddle/helper.rb b/test/fiddle/helper.rb
index 585900d1f5..f5cceddb88 100644
--- a/test/fiddle/helper.rb
+++ b/test/fiddle/helper.rb
@@ -122,6 +122,11 @@ end
libc_so = nil if !libc_so || (libc_so[0] == ?/ && !File.file?(libc_so))
libm_so = nil if !libm_so || (libm_so[0] == ?/ && !File.file?(libm_so))
+# macOS 11.0+ removed libSystem.B.dylib from /usr/lib. But It works with dlopen.
+if RUBY_PLATFORM =~ /darwin/
+ libc_so = libm_so = "/usr/lib/libSystem.B.dylib"
+end
+
if !libc_so || !libm_so
ruby = EnvUtil.rubybin
# When the ruby binary is 32-bit and the host is 64-bit,