qtest: fix 'expression is always false' build failure in qtest_has_accel()
If KVM is disabled or not present, qtest library build
may fail with:
libqtest.c: In function 'qtest_has_accel':
comparison of unsigned expression < 0 is always false
[-Werror=type-limits]
for (i = 0; i < ARRAY_SIZE(targets); i++) {
due to empty 'targets' array.
Fix it by making sure that CONFIG_KVM_TARGETS isn't empty.
Fixes: e741aff0f43343 ("tests: qtest: add qtest_has_accel() to check if tested binary supports accelerator")
Reported-by: Jason Andryuk <jandryuk@gmail.com>
Suggested-by: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20211027151012.2639284-1-imammedo@redhat.com>
Tested-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/meson.build b/meson.build
index b092728..ab4a572 100644
--- a/meson.build
+++ b/meson.build
@@ -75,7 +75,7 @@
kvm_targets = []
endif
-kvm_targets_c = ''
+kvm_targets_c = '""'
if not get_option('kvm').disabled() and targetos == 'linux'
kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
endif
