Update workding on why we use is_absolute_path() as a macro.

diff --git a/src/include/port.h b/src/include/port.h
index 7d307d08add0fd5fc85f129dc014c6e9ef5c3200..5c1e2284fafd6ce727d4d9f85af2516de45a5d7c 100644 (file)
--- a/src/include/port.h
+++ b/src/include/port.h
@@ -47,9 +47,8 @@ extern void get_parent_directory(char *path);
 /*
  *     is_absolute_path
  *
- *     This capability is needed by libpq and initdb.c
- *     On Win32, you can't reference the same object file that is
- *     in two different libraries (pgport and libpq), so a macro is best.
+ *     By making this a macro we prevent the need for libpq to include
+ *     path.c which uses exec.c.
  */
 #ifndef WIN32
 #define is_absolute_path(filename) \