[Converted from Gnats 883]

gdb, when debugging programs compiled with default gcc settings, does not work correctly when used with C files containing more than 65536 lines

Release:
gdb-5.2; gcc 2.95.3

Environment:
Solaris 2.8

How-To-Repeat:
Compile long.c:

   gcc -g long.c -o long

Use gdb to debug long:
   gdb long

Attempt to set a breakpoint at line 69987:

(gdb) break 69987
No line 69987 in file "long.c".

But there is a line 69987 in long.c.

Attempt to set a break at 'foo':

(gdb) break foo
Breakpoint 1 at 0x10710: file long.c, line 4451.
(gdb) 

But line 4451 contains nothing but a comment.

Notice that 69986 - 65535 = 4451