• GNU coreutils’ test suite insists on it, even despite it can run
successfully without doing it (WTF‽)…
• we already unspecial, explicitly commented as “hands-off” it,
when imported from the environment
• it was already changeable (though that didn’t unspecial it on the
command line)
• reference “shellshock” of GNU bash for exporting functions
• mention we don’t export arrays (just their "0" members) as
ksh93 and GNU bash don’t do it either, the latter documen‐
ting it even
also, their sysctl(8) sucks:
13:31⎜«gecko» naja, sysctl bricht die ausgabe bei nicht vorhandenen parametern ab
13:32⎜«gecko» der listet aktuell nur bis hw.memsize auf
Command line length limit of OS/2 is 32KiB. If the total length of
all arguments is larger than this limit, it's needed to use a
response file.
Previously, the total length calculation was simply to add length of
all arguments. However, this result was not match with real length of
arguments, which are passed to child processes with OS/2 APIs.
Because conversion methods of arguments from libc to OS/2 APIs are
different depending on libc.
For example, kLIBC inserts its signature to an argument list. In
addition, it passes arguments with a leading space like:
arg0
kLIBC signature
arg1
arg2
...
Whereas, EMX just distinguishes arg0 and others like:
arg0
arg1 arg2 arg3 ...
After all, simple sum of a length of arguments are not correct.
The better way is to try to execute a child process, and to retry with
a response file if it fails due to arguments-too-long.
This has been found while doing 'bootstrap', especially 'autoreconf'
in coreutils git repo. It stops with:
autom4te: /usr/local/bin/m4: Invalid argument
From: KO Myung-Hun <komh@chollian.net>
Normal OS/2 programs expect that standard IOs, especially stdin,
are opened in text mode at the startup. By the way, on OS/2 kLIBC
child processes inherit a translation mode of a parent process.
As a result, if stdin is set to binary mode in a parent process,
stdin of child processes is opened in binary mode as well at the
startup. In this case, some programs such as sed suffer from CR.
This is the regression fix of commit 20dbf6.
From: KO Myung-Hun <komh@chollian.net>
Giacomo Tesio
tg