[PATCH 2/3] crypto/ipsec_mb: fix build failures due to incompatible lib

[Bruce Richardson]

When cross-compiling for PowerPC on Ubuntu, the x86 IPSec_MB library was
getting found by the build system for use in the PPC build. This led to
failures at compile time due to the library not being linkable.

We can avoid these failures by checking the discovered library for
compatibility at configuration time. This needs a version check as it is
supported only from version 0.60 of meson onwards.

Fixes: c75542ae4200 ("crypto/ipsec_mb: introduce IPsec_mb framework")
Cc: stable at dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
 drivers/crypto/ipsec_mb/meson.build | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/crypto/ipsec_mb/meson.build b/drivers/crypto/ipsec_mb/meson.build
index 3057e6fd10..87bf965554 100644
--- a/drivers/crypto/ipsec_mb/meson.build
+++ b/drivers/crypto/ipsec_mb/meson.build
@@ -16,6 +16,11 @@ lib = cc.find_library('IPSec_MB', required: false)
 if not lib.found()
     build = false
     reason = 'missing dependency, "libIPSec_MB"'
+# if the lib is found, check it's the right format
+elif meson.version().version_compare('>=0.60') and not cc.links(
+        'int main(void) {return 0;}', dependencies: lib)
+    build = false
+    reason = 'incompatible dependency, "libIPSec_MB"'
 else
     ext_deps += lib
 
-- 
2.39.2