dtoolutil: Work around odd Linux bug with lseek on a directory fd

Fixes #1140
2021-04-08 12:07:00 +02:00 · 2021-04-08 12:07:00 +02:00 · addbc8a2e8
parent ab4367ee7b
commit addbc8a2e8
1 changed files with 1 additions and 1 deletions
--- a/dtool/src/dtoolutil/pandaFileStreamBuf.cxx
+++ b/dtool/src/dtoolutil/pandaFileStreamBuf.cxx
@ -333,7 +333,7 @@ seekoff(streamoff off, ios_seekdir dir, ios_openmode which) {
      // Posix case.
      {
        off_t li = lseek(_fd, off, SEEK_END);
-        if (li == (off_t)-1) {
+        if (li == (off_t)-1 || (sizeof(off_t) == 8 && li == 0x7fffffffffffffff)) {
          return -1;
        }
        new_pos = (size_t)li;