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Date: Fri, 20 Mar 2015 06:09:00 -0000
Message-ID: <CAGmPkf+mTt7xhZmWkR4oN-9h6jki1MUh8Rn0G06YhS4pQ8=H1A@mail.gmail.com>
Subject: No source file named getopt.c.
From: Fei Ding <fdingiit@gmail.com>
To: "gdb@sourceware.org" <gdb@sourceware.org>
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Hi:

I want to set a break point on some code in getopt.c, but I just got:

////////////////////////////////////////////
(gdb) b getopt.c:100
No source file named getopt.c.
////////////////////////////////////////////

then, I did this to add the source directory of that code, as:

////////////////////////////////////////////
(gdb) directory /home/dingaaa/test/gdb-7.6/libiberty/
Source directories searched: /home/dingaaa/test/gdb-7.6/libiberty:$cdir:$cwd
////////////////////////////////////////////

but still, I get
////////////////////////////////////////////
(gdb) b getopt.c:100
No source file named getopt.c.
////////////////////////////////////////////

BTW: I've changed Makefiles, with `-g -O0`

What's the problem?
Thanks.