#3756: Missing -lz option in testsuite
--------------------------------+-------------------------------------------
Reporter: daniel.is.fischer | Type: bug
Status: new | Priority: normal
Milestone: 6.12.2 | Component: Build System
Version: 6.12.1 | Keywords:
Difficulty: | Os: Linux
Testcase: | Architecture: x86
Failure: Other |
--------------------------------+-------------------------------------------
Comment(by daniel.is.fischer):
Ah, now I (begin to) understand. I had no idea it was connected to -debug
per se, I thought it was something specific to the tests. Indeed, trying
to compile something with -debug gives
{{{
Linking Trivial ...
/usr/lib/gcc/i586-suse-linux/4.3/../../../libbfd.a(compress.o):
In function `bfd_uncompress_section_contents':
/usr/src/packages/BUILD/binutils-2.19/build-
dir/bfd/../../bfd/compress.c:96:0:
undefined reference to `inflateInit_'
/usr/src/packages/BUILD/binutils-2.19/build-
dir/bfd/../../bfd/compress.c:103:0:
undefined reference to `inflate'
/usr/src/packages/BUILD/binutils-2.19/build-
dir/bfd/../../bfd/compress.c:106:0:
undefined reference to `inflateReset'
/usr/src/packages/BUILD/binutils-2.19/build-
dir/bfd/../../bfd/compress.c:108:0:
undefined reference to `inflateEnd'
collect2: ld returned 1 exit status
}}}
unless I pass -optl-lz on the command line (it names libbfd.a even with
-dynamic, is that necessarily a bug?).
Okay, I don't know whether that'll help diagnose the problem, but looking
a bit further,
{{{
$ nm /usr/lib/libbfd.a | grep -B 8 inflate
compress.o:
00000000 r .LC0
00000005 r .LC1
U _GLOBAL_OFFSET_TABLE_
00000000 T __i686.get_pc_thunk.bx
U bfd_malloc
00000000 T bfd_uncompress_section_contents
U free
U inflate
U inflateEnd
U inflateInit_
U inflateReset
}}}
and with a newly built binutils-2.20,
{{{
$ nm bfd/libbfd.a | grep -B 4 inflate
compress.o:
U bfd_malloc
00000000 T bfd_uncompress_section_contents
U free
U inflate
U inflateEnd
U inflateInit_
U inflateReset
}}}
and in bfd/configure, we find
{{{
# Link in zlib if we can. This allows us to read compressed debug
sections.
# This is used only by compress.c.
}}}
So it seems binutils inserts the dependency on libz if it finds one during
configure. It's quite adamant about it, I didn't manage to turn it off by
configure options, only by editing the code.
Makes me wonder, how come your libbfd.a doesn't mention inflate* ? What
does nm libbfd.a | grep -A 4 compress.o return?
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3756#comment:15>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
