[gentoo-alt] Re: Cygwin: emerge -u system issues

[Al]

> This question is about reemerging ncurses and I hope to find some
> experience from side of the INTERIX team.
>
> While installing ncurses there is a step that burns down to this failure:
>
> <------------------->
>  (cd /home/prefix/gentoo/var/tmp/portage/sys-libs/ncurses-5.7-r5/image//home/prefix/gentoo/usr/bin
> && ln -s tic.exe  infotocap.exe)
>
>      2 [main] bash 2044 child_copy: linked dll data write copy
> failed, 0x6CA88000..0x6CA9493C, done 0, windows pid 2044, Win32 error
> 487
> /home/prefix/gentoo/bin/bash: fork: retry: Resource temporarily unavailable
> <------------------->
>

Meanwhile I found a workaround. I have to replace "emake" with "make"
in the ebuild.

Still I have not found out what is the reason. For those who are
interested, there a two important points,

1.) Sheebang-line: #!/home/prefix/gentoo/bin/bash

While the bootstrapping itself still runs with Cygwins Bash
"/bin/bash", emake tries to switch to Prefix Bash by means of its
sheebang-line. That explains why the first built of ncurses is
successfull. There is no Prefix Bash at that time. Cygwins Bash is
used.

2.) The call to make in emake looks like this:

exec ${MAKE:-make} SHELL="${BASH:-/bin/bash}" ${MAKEOPTS} ${EXTRA_EMAKE} "$@"

$SHELL evalutes to the current BASH which is the Prefix Bash if the
sheebang-line was successfull.

So it's either the exec call or the different Bash which causes the issue.

I didn't investigate any further here, as it makes no sense to change
the emake script and there is a workaround. Anaway, maybe somebody has
an idea what really goes wrong.


Al

-- 
Caution crosser:  Runnig Gentoo/Prefix on Cygwin/Vista.
All stupid questions are related to that context.