SUMMARY: gcc 3.4.0

From: Don Newcomer (newcomer_at_dickinson.edu)
Date: 06/14/04

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    Date: Mon, 14 Jun 2004 15:50:50 -0400 (EDT)
To: Tru64 UNIX Managers <tru64-unix-managers@ornl.gov>

    Thanks to Paul A Sand <pas@unh.edu> and Karl Vogel <kvo@seagha.com> for
    their suggestions. Paul suggested:

    Haven't tackled gcc yet, but
    I had a similar (maybe the same) problem in compiling gdb.

    My notes say I included the lines

        #include <float.h>
        #define NAN DBL_QNAN

    in libiberty/floatformat.c to make things work better.

    Hope this helps, no warranties expressed or implied, etc.

    -----

    ...and Karl said:

    This looks familiar.. I bumped into this myself when porting OpenPKG-current
    (http://www.openpkg.org) to Tru64 V5.1-1.

    The solution is to add '-ieee' to the compile flags.

    -----

    Doing the two suggestions allowed the compile to succeed.

    Don Newcomer
    Senior Manager, Systems
    Infrastructure Systems Department
    Library and Information Services
    Dickinson College
    P.O. Box 1773
    Carlisle, PA 17013
    717-245-1256 (Voice)
    717-245-1690 (FAX)
    newcomer@dickinson.edu

    > Has anyone managed to compile gcc 3.4.0 under Tru64 version 5.1B yet? When
    > I try I get this error:
    >
    > cc -c -DHAVE_CONFIG_H -g -I. -I./../include floatformat.c -o floatformat.o
    > cc: Error: floatformat.c, line 319: In this statement, the libraries on this pla
    > tform do not yet support compile-time evaluation of the constant expression "0.0
    > /0.0". (constfoldns)
    > dto = NAN;
    > --------------^
    > make[1]: *** [floatformat.o] Error 1
    > make[1]: Leaving directory `/usr/local/source/gcc-3.4.0/libiberty'
    > make: *** [all-libiberty] Error 2
    >
    >
    > Is there a workaround? Thanks in advance.

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