binutils bug: config.guess

[Carlo Wood <carlo@runaway.xs4all.nl>]

Hiya,

when trying to compile binutils-2.9.1.0.22b,
I ran into a problem with config.guess.

I have "." in my PATH, and it seems that
makes config.guess fail to execute `ld'.
It tries to execute the directory ld/ in
binutils.

Adding a  PATH=/bin:/usr/bin
helped for me, which is prove that this
is indeed the problem.

I know I shouldn't have a "." in my path
before /usr/bin, but I am sure I am not
the only one that has it any way :).

Here's an strace output:

/usr/src/binutils/binutils-2.9.1.0.22b>strace -ff config.guess 2>&1 | grep exec
execve("./config.guess", ["config.guess"], [/* 39 vars */]) = 0
[pid  3935] execve("/bin/uname", ["uname", "-m"], [/* 39 vars */]) = 0
[pid  3937] execve("/bin/uname", ["uname", "-r"], [/* 39 vars */]) = 0
[pid  3939] execve("/bin/uname", ["uname", "-s"], [/* 39 vars */]) = 0
[pid  3941] execve("/bin/uname", ["uname", "-v"], [/* 39 vars */]) = 0
[pid  3943] execve("/usr/bin/ld", ["ld", "--help"], [/* 39 vars */]) = 0
[pid  3946] execve("/bin/sed", ["sed", "-ne", "/supported emulations:/!d\n\t\t\t"...], [/* 39 vars */]) = 0
[pid  3948] execve("/bin/grep", ["grep", "supported emulations:"], [/* 39 vars */]) = 0
[pid  3949] execve("/bin/cat", ["cat"], [/* 39 vars */]) = 0
[pid  3950] execve("/usr/bin/cc", ["cc", "dummy.c", "-o", "dummy"], [/* 39 vars */]) = 0
[pid  3951] execve("/usr/local/egcs/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.60/cpp", ["/usr/local/egcs/lib/gcc-lib/i686"..., "-lang-c", "-undef", "-D__GNUC__=2", "-D__GNUC_MINOR__=91", "-D__ELF__", "-Dunix", "-Di386", "-D__i386__", "-Dlinux", "-D__ELF__", "-D__unix__", "-D__i386__", "-D__i386__", "-D__linux__", "-D__unix", ...], [/* 41 vars */]) = 0
[pid  3952] execve("/usr/local/egcs/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.60/cc1", ["/usr/local/egcs/lib/gcc-lib/i686"..., "/tmp/cc1xxCly.i", "-quiet", "-dumpbase", "dummy.c", "-o", "/tmp/ccsq9UDZ.s"], [/* 41 vars */]) = 0
[pid  3953] execve("./as", ["as", "-Qy", "-o", "/tmp/ccBPeacv.o", "/tmp/ccsq9UDZ.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3953] execve("/home/carlo/bin/as", ["as", "-Qy", "-o", "/tmp/ccBPeacv.o", "/tmp/ccsq9UDZ.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3953] execve("/usr/local/bin/as", ["as", "-Qy", "-o", "/tmp/ccBPeacv.o", "/tmp/ccsq9UDZ.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3953] execve("/bin/as", ["as", "-Qy", "-o", "/tmp/ccBPeacv.o", "/tmp/ccsq9UDZ.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3953] execve("/usr/bin/as", ["as", "-Qy", "-o", "/tmp/ccBPeacv.o", "/tmp/ccsq9UDZ.s"], [/* 41 vars */]) = 0
[pid  3954] execve(ptrace: umoven: Input/output error
[pid  3955] execve("./ld", ["./ld", "-m", "elf_i386", "-dynamic-linker", "/lib/ld-linux.so.2", "-o", "dummy", "/usr/lib/crt1.o", "/usr/lib/crti.o", "/usr/local/egcs/lib/gcc-lib/i686"..., "-L/usr/local/egcs/lib/gcc-lib/i6"..., "-L/usr/local/egcs/i686-pc-linux-"..., "-L/usr/local/egcs/lib", "/tmp/ccBPeacv.o", "-lgcc", "-lc", ...], [/* 43 vars */]) = -1 EACCES (Permission denied)
[pid  3955] write(2, "collect2: executing ld: Permissi"..., 42) = 42
[pid  3956] execve("/bin/rm", ["rm", "-f", "dummy.c", "dummy"], [/* 39 vars */]) = 0
[pid  3961] execve("/bin/sed", ["sed", "-n", "s/.*NeXT Mach \\([0-9]*\\).*/\\1"...], [/* 39 vars */]) = 0
[pid  3957] execve("/bin/cat", ["cat"], [/* 39 vars */]) = 0
[pid  3962] execve("/usr/bin/cc", ["cc", "dummy.c", "-o", "dummy"], [/* 39 vars */]) = 0
[pid  3963] execve("/usr/local/egcs/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.60/cpp", ["/usr/local/egcs/lib/gcc-lib/i686"..., "-lang-c", "-undef", "-D__GNUC__=2", "-D__GNUC_MINOR__=91", "-D__ELF__", "-Dunix", "-Di386", "-D__i386__", "-Dlinux", "-D__ELF__", "-D__unix__", "-D__i386__", "-D__i386__", "-D__linux__", "-D__unix", ...], [/* 41 vars */]) = 0
[pid  3964] execve("/usr/local/egcs/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.91.60/cc1", ["/usr/local/egcs/lib/gcc-lib/i686"..., "/tmp/cc5ljYJi.i", "-quiet", "-dumpbase", "dummy.c", "-o", "/tmp/ccnnWTYj.s"], [/* 41 vars */]) = 0
[pid  3965] execve("./as", ["as", "-Qy", "-o", "/tmp/cc1tE1lp.o", "/tmp/ccnnWTYj.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3965] execve("/home/carlo/bin/as", ["as", "-Qy", "-o", "/tmp/cc1tE1lp.o", "/tmp/ccnnWTYj.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3965] execve("/usr/local/bin/as", ["as", "-Qy", "-o", "/tmp/cc1tE1lp.o", "/tmp/ccnnWTYj.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3965] execve("/bin/as", ["as", "-Qy", "-o", "/tmp/cc1tE1lp.o", "/tmp/ccnnWTYj.s"], [/* 41 vars */]) = -1 ENOENT (No such file or directory)
[pid  3965] execve("/usr/bin/as", ["as", "-Qy", "-o", "/tmp/cc1tE1lp.o", "/tmp/ccnnWTYj.s"], [/* 41 vars */]) = 0
[pid  3966] execve(ptrace: umoven: Input/output error
[pid  3967] execve("./ld", ["./ld", "-m", "elf_i386", "-dynamic-linker", "/lib/ld-linux.so.2", "-o", "dummy", "/usr/lib/crt1.o", "/usr/lib/crti.o", "/usr/local/egcs/lib/gcc-lib/i686"..., "-L/usr/local/egcs/lib/gcc-lib/i6"..., "-L/usr/local/egcs/i686-pc-linux-"..., "-L/usr/local/egcs/lib", "/tmp/cc1tE1lp.o", "-lgcc", "-lc", ...], [/* 43 vars */]) = -1 EACCES (Permission denied)
[pid  3967] write(2, "collect2: executing ld: Permissi"..., 42) = 42
[pid  3968] execve("/bin/rm", ["rm", "-f", "dummy.c", "dummy"], [/* 39 vars */]) = 0

While you're at it, I found another problem
with config.guess a while ago: I can imagine
that someone doesn't have a 'cc', but only
a 'gcc'. If you don't set CC in that case,
config.guess also fails, a bit weird (and
confusing) for a GNU package.

-- 
 Carlo Wood  <carlo@runaway.xs4all.nl>

PS Even if you fix config.guess, then configure still fails:

  /usr/src/binutils/binutils-2.9.1.0.22b>./configure
  Configuring for a i686-pc-linux-gnu host.
  Created "Makefile" in /usr/src/binutils/binutils-2.9.1.0.22b using "mt-frag"
  collect2: ld returned 33 exit status
  *** The command 'gcc -o conftest -g -O2   conftest.c' failed.
  *** You must set the environment variable CC to a working compiler.


-- 
H.J. Lu (hjl@gnu.org)