[Bug-gsl] gsl-1.4: minor build glitch on SGI IRIX

[Nelson H. F. Beebe]

A build of gsl-1.4 on SGI IRIX 6.5 produced this failure:

        Machinetype:            SGI Origin/200-4 (180 MHz) (4 CPUs); IRIX 6.5
        Remote c89 version:     MIPSpro Compilers: Version 7.3.1.3m
        Configure environment:  CC=c89 CXX=CC 
LDFLAGS=-Wl,-rpath,/usr/local/libn32 
        ...
        c89 -g -Wl,-rpath -Wl,/usr/local/libn32 -o test test.o  
../ieee-utils/.libs/libgslieeeutils.al
        ../err/.libs/libgslerr.al ../test/.libs/libgsltest.al 
./.libs/libgslsys.al ../utils/.libs/libutils.al -lm
        ld32: ERROR   33 : Unresolved text symbol "gsl_isinf" -- 1st referenced 
by
        ../test/.libs/libgsltest.al(results.lo).

Examination of the code in src/infnan.c shows the problem: if
HAVE_IEEE_COMPARISONS is not defined (which is the case on this
platform), then the file fails to provide a fall-back version of
gsl_isinf().  I get only these symbols:

        % nm sys/infnan.o | grep T
        0000000000000100 T gsl_finite
        00000000000000c0 T gsl_isnan
        0000000000000000 T gsl_nan
        0000000000000080 T gsl_neginf
        0000000000000040 T gsl_posinf

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- Nelson H. F. Beebe                    Tel: +1 801 581 5254                  -
- Center for Scientific Computing       FAX: +1 801 581 4148                  -
- University of Utah                    Internet e-mail: address@hidden  -
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