This is the mail archive of the cygwin mailing list for the Cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: GCC, -rdynamic option is unrecognized by GCC.


Claude Sylvain wrote:

- I am trying (without success) to compile this application (PCB):
    http://geda.seul.org/dist/pcb-20091103.tar.gz

- "configure" work well. But...

- When doing a "make", there is a message telling:
    "gcc: unrecognized option '-rdynamic'"

Actually, this message is only a warning, and should not prevent a successful build of pcb.


  Followed by a ton of linker messages telling:
    "...: undefined reference to ...".

What "gcc --version" gives you? Is it 4.3.4?


Curiously, when I tried it myself, the build succeeded with gcc 3.4.4, but failed with undefined references when switching to gcc 4.3.4. They seem to be related to some inline functions in toporouter.c. I will try to narrow it down.

Meanwhile, you could try switching to gcc 3.4.4:

1) Install gcc-core from Cygwin Setup
2) chmod +x /usr/bin/set-gcc-default*
3) set-gcc-default-3.sh
4) gcc --version (should be 3.4.4)
5) Rebuild pcb from scratch.

Or, alternatively, keep gcc 4.3.4, but remove all "inline" keywords from toporouter.c.

Cesar


-- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]