From: "Steven Levine" <gnuports@2rosenthals.com>
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Date: Sun, 10 May 2020 12:28:49 -0700
To: "GNU Ports for eCS Mailing List" <gnuports@2rosenthals.com>
In-Reply-To: <list-752971@2rosenthals.com>
Subject: Re: [GNU Ports] _beginthread not declared
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In <list-752971@2rosenthals.com>, on 05/10/20
   at 06:19 PM, "Paul Smedley" <gnuports@2rosenthals.com> said:

Hi guys,

>> Yet these turn into a fatal error if I declare __USE_EMX or such.

>I remember a similar problem years ago with one port (I forget which).

>I worked around it by adding the definition for _beginthread in the .c=20
>file that needed it.

I guessed a bit backwards and the macro priorities.  For _beginthread to
be declared both __STRICT_ANSI__ and _POSIX_SOURCE must be undefined.=20
Best I can tell this logic is specific to our gcc/kLIBC ports.  The use of
_WITH_UNDERSCORE and __USE_EMX also appear to be specific to our gcc/kLIBC
ports.  __STRICT_ANSI__ is known to gcc and _POSIX_SOURCE is known to the
POSIX standard. _POSIX_SOURCE appears to be deprecated in favor of
_POSIX_C_SOURCE.

One possible solution is to turn off the -ansi option which may allow
_beginthread to be defined without negative side effects.

Steven

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