Jim Meyering <j...@meyering.net> writes:
> When testing for the readline library, this works fine:
>
> echo 'char readline (); int main () { return readline (); }' > k.c
> gcc k.c -lreadline -ltermcap
>
> but in order to work around portability problems years ago, gnulib's
> lib-ignore.m4 makes it so the linker uses the --as-needed option:
>
> gcc k.c -Wl,--as-needed -lreadline -ltermcap
>
> and that fails on RHEL 5.3
> (with binutils-2.17.50.0.6-9.el5.x86_64 and gcc-4.1.2-44.el5.x86_64):
>
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `PC'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `tgetflag'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `tgetent'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `UP'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `tputs'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `tgoto'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `tgetnum'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `BC'
> /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../lib64/libreadline.so:
> undefined reference to `tgetstr'
> collect2: ld returned 1 exit status
> [Exit 1]
>
> And that makes parted's configure script fail to detect readline,
> which in turn resulted in some test failures.
>
> I'll look into it more, eventually.
Do you belive it is a bug in binutils? I tested it in Debian and it
works fine here.
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