make-mod-scripts: add build requirements for external modules
Newer kernels (4.14/v4.15+) have dependencies for the build of
modules (and hence external modules). Without these dependencies
explicitly in the build chain, you can end up with build failures like:
work-shared/qemux86/kernel-source/scripts/extract-cert.c:21:25: fatal
error: openssl/bio.h: No such file or directory
| #include <openssl/bio.h>
| ^
| compilation terminated.
| make[2]: *** [scripts/extract-cert] Error 1
| make[1]: *** [scripts] Error 2
To ensure that these headers are in place, and that the scripts use
our build environment flags, we add a dependency on openssl-native
and use oe_make to invoke the build.
Older kernels have no issues with the extra dependency, so there's no
need to make this conditional.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
