meson: allow optional dependencies for block modules

Right now all dependencies for block modules are passed to
module_ss.add(when: ...), so they are mandatory.  In the next patch we
will need to add a libm dependency to a module, but libm does not exist
on all systems.  So, modify the creation of module_ss and modsrc so that
dependencies can also be passed to module_ss.add(if_true: ...).

While touching the array, remove the useless dependency of the curl
module on glib.  glib is always linked in QEMU and in fact all other
block modules also need it, but they don't have to specify it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-06-01 09:54:10 +02:00
parent 5a95f5ce3c
commit 96acfb1f25

View File

@ -71,19 +71,19 @@ block_modules = {}
modsrc = []
foreach m : [
[curl, 'curl', [curl, glib], 'curl.c'],
[glusterfs, 'gluster', glusterfs, 'gluster.c'],
[libiscsi, 'iscsi', libiscsi, 'iscsi.c'],
[libnfs, 'nfs', libnfs, 'nfs.c'],
[libssh, 'ssh', libssh, 'ssh.c'],
[rbd, 'rbd', rbd, 'rbd.c'],
[curl, 'curl', files('curl.c')],
[glusterfs, 'gluster', files('gluster.c')],
[libiscsi, 'iscsi', files('iscsi.c')],
[libnfs, 'nfs', files('nfs.c')],
[libssh, 'ssh', files('ssh.c')],
[rbd, 'rbd', files('rbd.c')],
]
if m[0].found()
if enable_modules
modsrc += files(m[3])
endif
module_ss = ss.source_set()
module_ss.add(when: m[2], if_true: files(m[3]))
module_ss.add(when: m[0], if_true: m[2])
if enable_modules
modsrc += module_ss.all_sources()
endif
block_modules += {m[1] : module_ss}
endif
endforeach