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| From: | Davis Herring |
| Subject: | Re: Too many warnings building Emacs with GCC 6 on MSYS2-MinGW64 |
| Date: | Thu, 1 Sep 2016 10:17:36 -0600 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2 |
On Unix, execve indeed returns an int, because it's a process ID. On Windows, the return value can be a process handle, which is a 64-bit data type on 64-bit Windows. That is why the return value must be intptr_t, not an int.
No, it's an error code. (You said as much for POSIX in your following message, but it's an error code on all systems.) If it succeeds, the process image has been replaced and it doesn't return at all.
Davis --This product is sold by volume, not by mass. If it appears too dense or too sparse, it is because mass-energy conversion has occurred during shipping.
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