Egor, hi,
I'm having a build problem of BusyBox-1.00 on Cygwin and I think I've tracked the origin of it being related to a change you've contributed to BusyBox (1). Specifically, when building BusyBox, its top-level Makefile include a huge amount of Makefile.in files with this line:
include $(patsubst %,%/Makefile.in, $(SRC_DIRS))
Actually, such include was present in build system before my change, so i doubt this line is the culprint
Now, when I'm building BusyBox-1.00 on Cygwin in
directory /busybox-1.00 everything goes ok. But when
I'm using a bit longer path, like
/tmp/a_longish_directory_name_for_testing/busybox-1.00
I got an error when doing 'make':
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o scripts/mkdep /tmp/a_longish_directory_name_for_testing/busybox-1.00/scripts/mkdep.c gcc: installation problem, cannot exec `/usr/lib/gcc-lib/i686-pc-cygwin/3.3.3/collect2.exe': Resource temporarily unavailable make: *** [scripts/mkdep] Error 1
When testing with path
/tmp/a_longish_directory_name_for_test/busybox-1.00
things work again. I presume this has something to do with Cygwin's exec() implementation, the build seems to be chiking when to length for include exceeds some limit.
It sounds more like memory corruption problem to me. It may be in cygwin itself or in cygwin's version of make. When you use longer paths, some static buffers or allocated memory seem to be overwritten which may cause such behaviour.
It would be interesting to check if simply running gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o scripts/mkdep /tmp/a_longish_directory_name_for_testing/busybox-1.00/scripts/mkdep.c from command line works ok.
I tried all sorts of tricks in Makefile to find a workaround but didn't succeed to produce anything useful. Do you have any ideas how to fix this? Is this more Cygwin or BusyBox problem? Currently, I can live with using always /busybox-1.00 for building but that is a bit awkward..
I suggest you to follow cygwin bug reporting guidelines from http://cygwin.com/problems.html, including cygcheck output to debug th
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