lib: add reasons for components being disabled

For each library where we optionally disable it, add in the reason why it's
being disabled, so the user knows how to fix it.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>

diff --git a/lib/librte_kni/meson.build b/lib/librte_kni/meson.build
index 400af9a..41fa2e3 100644 (file)
--- a/lib/librte_kni/meson.build
+++ b/lib/librte_kni/meson.build
@@ -3,6 +3,7 @@
 
 if not is_linux or not dpdk_conf.get('RTE_ARCH_64')
        build = false
+       reason = 'only supported on 64-bit linux'
 endif
 version = 2
 sources = files('rte_kni.c')

diff --git a/lib/librte_power/meson.build b/lib/librte_power/meson.build
index cc6c300..cdf08f6 100644 (file)
--- a/lib/librte_power/meson.build
+++ b/lib/librte_power/meson.build
@@ -3,6 +3,7 @@
 
 if not is_linux
        build = false
+       reason = 'only supported on linux'
 endif
 sources = files('rte_power.c', 'power_acpi_cpufreq.c',
                'power_kvm_vm.c', 'guest_channel.c',

diff --git a/lib/librte_telemetry/meson.build b/lib/librte_telemetry/meson.build
index cafb26f..3e7db4f 100644 (file)
--- a/lib/librte_telemetry/meson.build
+++ b/lib/librte_telemetry/meson.build
@@ -12,4 +12,5 @@ if jansson.found()
        dpdk_app_link_libraries += ['telemetry']
 else
        build = false
+       reason = 'missing dependency "jansson"'
 endif

diff --git a/lib/librte_vhost/meson.build b/lib/librte_vhost/meson.build
index 3090bbe..cb1123a 100644 (file)
--- a/lib/librte_vhost/meson.build
+++ b/lib/librte_vhost/meson.build
@@ -3,6 +3,7 @@
 
 if not is_linux
        build = false
+       reason = 'only supported on linux'
 endif
 if has_libnuma == 1
        dpdk_conf.set10('RTE_LIBRTE_VHOST_NUMA', true)