Re: [PATCH v3 01/10] capstone: Convert Makefile bits to meson bits

[Paolo Bonzini]

On 21/09/20 12:54, Alex Bennée wrote:
> Something is breaking when switching to a branch with this on from
> current master:
> 
>   Linking target qemu-hppa
>   /usr/bin/ld: libcommon.fa.p/disas_alpha.c.o: in function `print_insn_alpha':
>   /home/alex/lsrc/qemu.git/builds/all/../../disas/alpha.c:1818: undefined 
> reference to `bfd_getl32'
>   collect2: error: ld returned 1 exit status
>   make: *** [Makefile.ninja:5965: qemu-alpha] Error 1
>   make: *** Waiting for unfinished jobs....
>   /usr/bin/ld: libcommon.fa.p/disas_hppa.c.o: in function `print_insn_hppa':
>   /home/alex/lsrc/qemu.git/builds/all/../../disas/hppa.c:1969: undefined 
> reference to `bfd_getb32'
>   collect2: error: ld returned 1 exit status
>   make: *** [Makefile.ninja:6259: qemu-hppa] Error 1

>From "https://wiki.qemu.org/Features/Meson":

Known issues
============

There is one Make issue that might happen when switching branches: if
the command line changes, the files are not rebuilt. This is always a
problem with Make, but it may become more common now due to the use of
statically-linked libraries.


The simplest fix here would be to use ninja to build QEMU, i.e. do the
main QEMU build recursively just like we do for submodules, keeping Make
purely to orchestrate the build.

Paolo