Mike Frysinger schrieb:
> the majority of the time, the compiler driver (i.e. `gcc`) should be used for 
> linking.  very few packages should invoke the linker directly.  that is why 
> currently the toolchain-func.eclass has tc-getLD return `ld` -- a few packages 
> need it, but not most.  if we're going to be forcing the setting of the LD env 
> var all the time, then it needs to default to ${CC}.  packages that need funky 
> behavior should still work as they will be calling $(tc-getLD) anyways.
> 
>>>  - the -L paths to system dirs in LDFLAGS should not be there -- the
>>> toolchain can handle these just fine
>> Last time i tried without, some packages failed to compile, will test it
>>  again to check, if its still needed
> 
> if things are failing, then we should look at gcc/binutils to make sure they 
> use the right default search paths when given -m32/-m64

This is an example from configure failure with ABI=x86 for cvs-1.12.12-r6

last lines from configure:

checking for ssh... ssh
checking for vim... /bin/nano
checking for temporary directory... /tmp
checking security/pam_appl.h usability... yes
checking security/pam_appl.h presence... yes
checking for security/pam_appl.h... yes
checking for pam_start in -lpam... no
configure: error: Could not find PAM libraries but the headers exist.
      Give the --disable-pam option to compile without PAM support (or fix
      your broken configuration)

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/dev-util/cvs-1.12.12-r6/work/cvs-1.12.12/config.log
 * ERROR: dev-util/cvs-1.12.12-r6 failed:
 *   econf failed

relevant lines from config.log:

configure:38697: checking for pam_start in -lpam
configure:38727: x86_64-pc-linux-gnu-gcc -o conftest -march=nocona -O2 -pipe -m32
-L/emul/linux/x86/lib -L/emul/linux/x86/usr/lib -march=nocona -O2 -pipe  -Wl,--as-needed conftest.c
-lpam  -lnsl  -lz >&5
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/../../../../lib32/libpam.a(pam_dynamic.o): In function
`_pam_dlerror':
(.text+0x1f): undefined reference to `dlerror'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/../../../../lib32/libpam.a(pam_dynamic.o): In function
`_pam_dlclose':
(.text+0x5f): undefined reference to `dlclose'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/../../../../lib32/libpam.a(pam_dynamic.o): In function
`_pam_dlsym':
(.text+0xa6): undefined reference to `dlsym'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/../../../../lib32/libpam.a(pam_dynamic.o): In function
`_pam_dlopen':
(.text+0xf2): undefined reference to `dlopen'
collect2: ld returned 1 exit status
configure:38733: $? = 1

If you need some more lines or complete build.log/config.log, feel free to tell me and i will send
them directly.

-- 
Thomas Sachau

Gentoo Linux Developer