[libpq] build failure

[JeffreyWardman]

Operating system

Linux

Compiler

gcc

Steps to reproduce the behavior

{
  "name": "lib",
  "version-semver": "0.0.0",
  "dependencies": ["fmt", "qt"],
  "default-features": []
  },
  "builtin-baseline": "80d54ff62d528339c626a6fbc3489a7f25956ade"
}

Failure logs

In file included from ../../src/include/postgres.h:46,
                 from hashfn.c:24:
../../src/include/utils/elog.h:79:10: fatal error: utils/errcodes.h: No such file or directory
   79 | #include "utils/errcodes.h"
      |          ^~~~~~~~~~~~~~~~~~
compilation terminated.
relpath.c:21:10: fatal error: catalog/pg_tablespace_d.h: No such file or directory
   21 | #include "catalog/pg_tablespace_d.h"
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [<builtin>: hashfn.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [<builtin>: relpath.o] Error 1
make[1]: *** [Makefile:19: all] Error 2

Additional context

The error is caused by an additional folder in src that contains the contents expected within src itself: /opt/vcpkg/buildtrees/libpq/src/tgresql-16-b00fbb6ff2.clean.

[JeffreyWardman]

Same issue as #39752. Due to running vcpkg install in a makefile command.