ext_dl_extconf_rb.patch

diff --git a/ext/dl/extconf.rb b/ext/dl/extconf.rb
index 8317ac3..f1b3155 100644
--- a/ext/dl/extconf.rb
+++ b/ext/dl/extconf.rb
@@ -1,7 +1,9 @@
 require 'mkmf'
 
 if RbConfig::CONFIG['GCC'] == 'yes'
-  $CFLAGS << " -fno-defer-pop -fno-omit-frame-pointer"
+  # $CFLAGS << " -fno-defer-pop -fno-omit-frame-pointer"
+  $CFLAGS << " -fno-defer-pop" unless have_macro("__clang__")
+  $CFLAGS << " -fno-omit-frame-pointer"
 end
 
 $INSTALLFILES = [

Adapted for 1.9.3-p392, install with rbenv:

$ rbenv install --patch 1.9.3-p392 < <(curl -sSL https://gist.githubusercontent.com/carhartl/9d893b9710b284efea2d/raw/c336d62fc6cd61674d826e252e9ada65e70dc534/ext_dl_extconf_rb.patch)