Re: libsigsegv on LinuxFromScratch

[Bruce Dubbs]

On 9/18/20 6:24 PM, Bruno Haible wrote:
> Bruce Dubbs wrote in
> <https://lists.gnu.org/r/grep-devel/2020-09/msg00052.html>
> <https://lists.gnu.org/r/grep-devel/2020-09/msg00053.html> :
>
> > > checking for libsigsegv... yes
> > > checking how to link with libsigsegv... -lsigsegv
> >
> > I get:
> >
> > checking for libsigsegv... yes
> > checking how to link with libsigsegv... /usr/lib/libsigsegv.so
> > /usr/lib/libc.a
>
> Is this really a multiline string (also in the value of LIBSIGSEGV in
> .sconfigtatus)? Or are these space-separated values?

It's email wrapping.  It is one line in the log.

$ grep LIBSIGSEGV config.status
S["LIBSIGSEGV_PREFIX"]="/usr"
S["LTLIBSIGSEGV"]="-L/usr/lib -lsigsegv -lc"
S["LIBSIGSEGV"]="/usr/lib/libsigsegv.so -lc"
S["HAVE_LIBSIGSEGV"]="yes"
D["HAVE_LIBSIGSEGV"]=" 1"
D["HAVE_LIBSIGSEGV"]=" 1"


> In the latter case, is linking with libc.a normally working?

No it is not.

> Also, if there is a file /usr/lib/libsigsegv.la, can you please show
> its contents?

# libsigsegv.la - a libtool library file
# Generated by libtool (GNU libtool) 2.4.6
#
# Please DO NOT delete this file!
# It is necessary for linking the library.

# The name that we can dlopen(3).
dlname='libsigsegv.so.2'

# Names of this library.
library_names='libsigsegv.so.2.0.5 libsigsegv.so.2 libsigsegv.so'

# The name of the static archive.
old_library=''

# Linker flags that cannot go in dependency_libs.
inherited_linker_flags=''

# Libraries that this one depends upon.
dependency_libs=' -lc'

# Names of additional weak libraries provided by this library
weak_library_names=''

# Version information for libsigsegv.
current=2
age=0
revision=5

# Is this an already installed library?
installed=yes

# Should we warn about portability when linking against -modules?
shouldnotlink=no

# Files to dlopen/dlpreopen
dlopen=''
dlpreopen=''

# Directory that this library needs to be installed in:
libdir='/usr/lib'

----------

But I think the problem is libc.a, not libsigsegv.


One additional note: adding --prefix=/usr to configure causes the 
problem.  If I only add --bindir=/bin, then the problem does not occur.

  -- Bruce