(web2c.info)IPC and TeX

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4.6 IPC and TeX
===============

(If anyone uses this feature and needs documentation, write
<tex-k@tug.org>.)

   This functionality is available only if the '--enable-ipc' option was
specified to 'configure' during installation of Web2c (Note:
Installation).

   If you define 'IPC_DEBUG' before compilation (e.g., with 'make
XCFLAGS=-DIPC_DEBUG'), TeX will print messages to standard error about
its socket operations.  This may be helpful if you are, well, debugging.