Prevent tail spin crash when option -pthread is used.
Prevent tail spin crash when option -pthread is used.

avih/tinycc,mingodad/tinycc,metaeducation/tcc,mirror/tinycc,code4game/tinycc,metaeducation/tcc,avih/tinycc,avih/tinycc,avih/tinycc,run4flat/tinycc,run4flat/tinycc,metaeducation/tcc,mirror/tinycc,mingodad/tinycc,code4game/tinycc,code4game/tinycc,run4flat/tinycc,run4flat/tinycc,andreiw/tinycc,mingodad/tinycc,metaeducation/tcc,run4flat/tinycc,andreiw/tinycc,mirror/tinycc,andreiw/tinycc,metaeducation/tcc,mingodad/tinycc,mirror/tinycc