[Bug bootstrap/49667] New: Duplicate -L's with configure --with-gmp-lib on Solaris 10

[Bug bootstrap/49667] New: Duplicate -L's with configure --with-gmp-lib on Solaris 10

[greg.robinson at dsto dot defence.gov.au]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49667

           Summary: Duplicate -L's with configure --with-gmp-lib on
                    Solaris 10
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: greg.robinson@dsto.defence.gov.au


Hi,

I'm running Solaris 10 sparc.

If I configure gcc as this (from config.log):

  $ ../configure --with-gmp-lib=-L/usr/local/lib -R/usr/local/lib

(using ../configire --with-gmp-lib="-L/usr/local/lib -R/usr/local/lib"

(as I don't run a global LD_LIBRARY_PATH)

It produces double -L entries as such (from config.log):

configure:5514: checking for the correct version of the gmp/mpfr/mpc libraries
configure:5545: gcc -o conftest -g -O2    conftest.c  -L-L/usr/local/lib
-R/usr/local/lib -lmpc -lmpfr -lgmp >&5
configure:5545: $? = 0
configure:5546: result: yes

and:

gmpinc=''
gmplibs='-L-L/usr/local/lib -R/usr/local/lib -lmpc -lmpfr -lgmp'
host='sparc-sun-solaris2.10'

As you can see, the test compile works.  However, when compiling the compiler,
it fails to link with mpc, mpfr and gmp libraries, and says that they dont
exist.  I can't show you the error, as it's gone from my scroll back and I've
fixed the offending Makefiles, so my compiling is continuing without error.

The offending Makefiles where I found the -L-L/usr/local/lib are:

objdir/Makefile
objdir/gcc/Makefile
objdir/prev-gcc/Makefile

After I corrected these, the compile continues.

[Bug bootstrap/49667] Duplicate -L's with configure --with-gmp-lib on Solaris 10

[greg.robinson at dsto dot defence.gov.au]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49667

--- Comment #1 from Greg Robinson <greg.robinson at dsto dot defence.gov.au> 2011-07-07 07:33:07 UTC ---
Ok, I think I might know whats going on.  I believe, I am assuming, that, say,
an LDFLAGS option, where you specify -L and -R is the same format as
--with-gmp-lib.

In other words, --with-gmp-lib takes a directory as the option, and LDFLAGS has
the -L and -R options and the directory? Right?

should have check configure before posting...

sorry 'bout that.  It's been a long time...

[Bug bootstrap/49667] Duplicate -L's with configure --with-gmp-lib on Solaris 10

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49667

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-07-07 08:06:56 UTC ---
yes, as documented at http://gcc.gnu.org/install/configure.html