On 11/6/23 10:39 PM, Michael T. Kloos wrote:
I was trying to cross-compile bash for musl libc. The configure script reports:
checking for working sbrk... configure: WARNING: cannot check working sbrk if
cross-compiling
yes
In this case, the bash configure assumes that sbrk is present and working,
since that's true 90+% of the time.
However, I don't believe musl libc supports sbrk. However, autoconf seems to
default
to assuming yes and sets the HAVE_SBRK definition. Bash then crashes on
xmalloc failure.
If sbrk doesn't work on the target platform, configure --without-bash-malloc
to avoid using it.
It's interesting that musl supports brk but not sbrk, since you can always
implement sbrk using brk if you know the current break.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/
