gcc 3.4.1: warning: junk at end of '#pragma pack'

[Milind Changire]

Environment: RedHat 8.0 i386
             gcc (GCC) 3.2 20020903 (Red Hat Linux 8.0 3.2-7)
             gcc 3.4.1

I've recently downloaded and compiled gcc 3.4.1 with gcc 3.2.
A "#pragma pack(1);" generates a 'junk at end' warning under
gcc 3.2 as well as gcc 3.4.1.

Is gcc 3.4.1 still broken in this respect?
How serious is the warning?
Is the preprocessor directive skipped totally?

Awaiting help.
-Milind