Problems with popen in RedHat 7.3

[Esther Parrilla Endrino]

Hi all,

I am having problems using consecutively glibc popen function and POSIX
pthread_create function in a C application because it hangs.

I am using glibc-2.2.5-34 under RedHat 7.3 and I have seen in some
forums that some implementations of glibc causes popen to be non
thread-safe.

My question is how can I check if popen function in glibc-2.2.5-34 under
RedHat 7.3 is thread-safe? 

The man pages do not provide this info :(

Thanks in advance,

e*

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