This was added with the generated symbol-prefixing header. But it
seems to be sufficient for crypto to have a dependency on the
generated header, along with some of the stray bits of delocate.
It's a little unclear from CMake documentation how these are processed;
normally .o files can be built before libraries are built or linked,
only the link step depends on.
But, empirically, if A links B, and B has a dependency on C, then CMake
seems to run C before building any of A. I tested this by making a small
project where the generation step slept for three seconds and running
with enough parallelism that we'd have tripped.
Interestingly, in the Makefile output, the individual object file
targets didn't have that dependency, but the target itself did. But this
was true on both A and B, so I think that just might not work.
Also fix the dependency in the custom target. The old formulation broke
when using an absolute path to the symbols file.
Change-Id: I2053d44949f907d465da403a5ec69c191740268f
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/56928
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Bob Beck <bbe@google.com>
David Benjamin
8c75ed046f