|  | @@ -86,7 +86,7 @@ if test "$PHP_GRPC" != "no"; then
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				|  |  |  
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				|  |  |    PHP_NEW_EXTENSION(grpc, byte_buffer.c call.c call_credentials.c channel.c \
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				|  |  |      channel_credentials.c completion_queue.c timeval.c server.c \
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				|  |  | -    server_credentials.c php_grpc.c, $ext_shared, , -Wall -Werror -std=c11)
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				|  |  | +    server_credentials.c php_grpc.c, $ext_shared, , -Wall -Werror -std=c11 -DGRPC_POSIX_FORK_ALLOW_PTHREAD_ATFORK=1)
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				|  |  |  fi
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				|  |  |  
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				|  |  |  if test "$PHP_COVERAGE" = "yes"; then
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