source_subfolder/libiberty/pex-unix.c: In function 'pex_unix_exec_child':
source_subfolder/libiberty/pex-unix.c:607:3: warning: ISO C90 forbids mixed declarations and code [-Wpedantic]
   volatile int sleep_interval = 1;
   ^
source_subfolder/libiberty/pex-unix.c:699:2: warning: ISO C90 forbids mixed declarations and code [-Wpedantic]
  ssize_t retval = 0;
  ^
source_subfolder/libiberty/pex-unix.c:734:2: warning: ISO C90 forbids mixed declarations and code [-Wpedantic]
  struct fn_err failed;
  ^
source_subfolder/libiberty/pex-unix.c:739:6: warning: ISO C90 forbids mixed declarations and code [-Wpedantic]
      ssize_t len = read (pipes[0], &failed, sizeof (failed));
      ^
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY