4.0.0->4.0.1 regression: Can't use 64-bit shared libs on powerpc-apple-darwin8.1.0

[Bradley Lucier]

On Jun 16, 2005, at 1:30 AM, Mike Stump wrote:

>  Please try something like:
> ...
> and let me know if it works.

Thank you, I will try it today.

Last night I unconditionally allowed multilibs and configured with

Compiler version: 4.1.0 20050615 (experimental)
Platform: powerpc-apple-darwin8.1.0
configure flags: --prefix=/pkgs/gcc-4.0-mainline  
--with-gmp=/pkgs/gmp-4.1.3 --with-mpfr=/pkgs/gmp-4.1.3  
--enable-languages=c,c++,f95,objc,obj-c++
BOOT_CFLAGS=-g -O2 -mdynamic-no-pic

There were many -m64 failures in some of the testsuites; e.g.,

                 === g++ Summary for unix/-m64 ===

# of expected passes            8438
# of unexpected failures        1370
# of expected failures          60
# of unresolved testcases       68
# of unsupported tests          114
...
                 === gfortran Summary for unix/-m64 ===

# of expected passes            517
# of unexpected failures        3320
# of unexpected successes       3
# of expected failures          9
# of untested testcases         1472
# of unsupported tests          17
...
                 === objc Summary for unix/-m64 ===

# of expected passes            493
# of unexpected failures        576
# of unresolved testcases       533
# of unsupported tests          1

It seems that the 64-bit libgcc_s can't be found many times; a typical  
failure from the top of the c++ test suite looks like

Test Run By lucier on Wed Jun 15 21:35:15 2005
Native configuration is powerpc-apple-darwin8.1.0

                 === g++ tests ===

Schedule of variations:
     unix/-m64
     unix

Running target unix/-m64
Using /pkgs/dejagnu/share/dejagnu/baseboards/unix.exp as board  
description file for target.
Using /pkgs/dejagnu/share/dejagnu/config/unix.exp as generic interface  
file for target.
Using  
/Users/lucier/programs/gcc/gcc-mainline/gcc/testsuite/config/ 
default.exp as tool-and-target-specific interface file.
Running  
/Users/lucier/programs/gcc/gcc-mainline/gcc/testsuite/g++.dg/bprob/ 
bprob.exp ...
set_ld_library_path_env_vars:  
ld_library_path=.:/Users/lucier/programs/gcc/gcc-mainline/objdir/ 
powerpc-apple-darwin8.1.0/ppc64/libstdc++-v3/src/.libs:/Users/lucier/ 
programs/gcc/gcc-mainline/objdir/gcc
ALWAYS_CXXFLAGS set to {additional_flags=-nostdinc++  
-I/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libstdc++-v3/include/powerpc-apple-darwin8.1.0  
-I/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libstdc++-v3/include  
-I/Users/lucier/programs/gcc/gcc-mainline/libstdc++-v3/libsupc++  
-I/Users/lucier/programs/gcc/gcc-mainline/libstdc++-v3/include/backward  
-I/Users/lucier/programs/gcc/gcc-mainline/libstdc++-v3/testsuite}  
{ldflags=  
-L/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libstdc++-v3/src/.libs  
-L/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libiberty } additional_flags=-fmessage-length=0  
{ldflags=-multiply_defined suppress}
Executing on host:  
/Users/lucier/programs/gcc/gcc-mainline/objdir/gcc/testsuite/../g++  
-B/Users/lucier/programs/gcc/gcc-mainline/objdir/gcc/testsuite/../  
/Users/lucier/programs/gcc/gcc-mainline/gcc/testsuite/g++.dg/bprob/g++- 
bprob-1.C  -nostdinc++  
-I/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libstdc++-v3/include/powerpc-apple-darwin8.1.0  
-I/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libstdc++-v3/include  
-I/Users/lucier/programs/gcc/gcc-mainline/libstdc++-v3/libsupc++  
-I/Users/lucier/programs/gcc/gcc-mainline/libstdc++-v3/include/backward  
-I/Users/lucier/programs/gcc/gcc-mainline/libstdc++-v3/testsuite  
-fmessage-length=0  -g   -fprofile-arcs     
-L/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libstdc++-v3/src/.libs  
-L/Users/lucier/programs/gcc/gcc-mainline/objdir/powerpc-apple- 
darwin8.1.0/ppc64/libiberty  -multiply_defined suppress -lm   -m64 -o  
/Users/lucier/programs/gcc/gcc-mainline/objdir/gcc/testsuite/g++-bprob 
-1.x01    (timeout = 300)
ld64 failed: library not found for -lgcc_s_ppc64^M
collect2: ld returned 1 exit status^M
compiler exited with status 1
output is:
ld64 failed: library not found for -lgcc_s_ppc64^M
collect2: ld returned 1 exit status^M

even though

[descartes:gcc/gcc-mainline/objdir] lucier% find . -name 'libgcc_s*'
./gcc/libgcc_s.1.0.dylib
./gcc/libgcc_s.1.0.dylib.backup
./gcc/libgcc_s.dylib
./gcc/libgcc_s_ppc64.1.0.dylib
./gcc/libgcc_s_ppc64.1.0.dylib.backup
./gcc/libgcc_s_ppc64.dylib
...

Is the testsuite failing to set up to set the DYLD_LIBRARY_PATH  
appropriately?

Brad