Description:
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pcntl extension not available.

we included the switch '--enable-pcntl' when do 'configure', but yet couldn't use functions of pcntl extension after compiled properly.

BTW: configuring and compiling processes were both successful.

Reproduce code:
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$pid = pcntl_fork();


Expected result:
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just no error


Actual result:
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Fatal error: Call to undefined function pcntl_fork() in ...