When building sign-file, the call to get the CFLAGS for libcrypto is
missing white-space between `pkg-config` and `--cflags`:
$(shell $(HOSTPKG_CONFIG)--cflags libcrypto 2> /dev/null)
Removing the redirection of stderr, we see:
$ make -C tools/testing/selftests/bpf sign-file
make: Entering directory '[...]/tools/testing/selftests/bpf'
make: pkg-config--cflags: No such file or directory
SIGN-FILE sign-file
make: Leaving directory '[...]/tools/testing/selftests/bpf'
Add the missing space.
Fixes: fc97590668 ("selftests/bpf: Add test for bpf_verify_pkcs7_signature() kfunc")
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Roberto Sassu <roberto.sassu@huawei.com>
Link: https://lore.kernel.org/bpf/20230426215032.415792-1-jeremy@azazel.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
5f5486b620