#2469: Linking fails with "multiple definition of `deRefStablePtr'"
-------------------------------------+--------------------------------------
Reporter: meteficha | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler (FFI)
Version: 6.8.2 | Severity: normal
Keywords: linker ffi stableptr | Testcase:
Architecture: Unknown | Os: Multiple
-------------------------------------+--------------------------------------
Package Hipmunk-0.1 in Hackage compiles fine, but when compiling
!HipmunkPlayground-0.1 it fails with something like (this message from
Hackage build log)
{{{
Building executable: HipmunkPlayground...
Creating dist/build/HipmunkPlayground (and its parents)
Creating dist/build/HipmunkPlayground/HipmunkPlayground-tmp (and its
parents)
/usr/local/bin/ghc -o dist/build/HipmunkPlayground/HipmunkPlayground
--make -hide-all-packages -i -idist/build/autogen
-idist/build/HipmunkPlayground/HipmunkPlayground-tmp -i.
-Idist/build/HipmunkPlayground/HipmunkPlayground-tmp -odir
dist/build/HipmunkPlayground/HipmunkPlayground-tmp -hidir
dist/build/HipmunkPlayground/HipmunkPlayground-tmp -stubdir
dist/build/HipmunkPlayground/HipmunkPlayground-tmp -package
containers-0.1.0.1 -package base-3.0.1.0 -package Hipmunk-0.1 -package
OpenGL-2.2.1.1 -package GLFW-0.3 -O -Wall ./Playground.hs
[1 of 1] Compiling Main ( ./Playground.hs,
dist/build/HipmunkPlayground/HipmunkPlayground-tmp/Main.o )
Linking dist/build/HipmunkPlayground/HipmunkPlayground ...
/usr/local/lib/ghc-6.8.2/libHSrts.a(Stable.o): In function
`deRefStablePtr':
Stable.c:(.text+0x0): multiple definition of `deRefStablePtr'
/usr/local/tmp/archive/install/lib/Hipmunk-0.1/ghc-6.8.2/libHSHipmunk-0.1.a(Space_stub.o):Space_stub.c:(.text+0x0):
first defined here
collect2: ld returned 1 exit status
}}}
This bug has been observed on some configurations, but not on some others:
|| '''Worked''' || '''Box tried''' || '''Arch''' || '''OS''' ||
'''Version''' ||
|| ''Failed'' || My 2nd box || x86_32 || Debian Linux || GHC
6.8.2 ||
|| ''Failed'' || dons' box || ??? || ??? Linux || GHC
6.8.2 ||
|| ''Failed'' || Antoines's box || x86_?? || Mac OS 10.5 || GHC
6.8.2 ||
|| ''Failed'' || Hackage || ??? || ??? || GHC
6.8.2 ||
|| Ok || My 1st box || x86_64 || Gentoo Linux || GHC
6.8.3 ||
|| Ok || My 3rd box || x86_32 || Windows XP || GHC
6.8.1 ||
On all cases that failed above, the message was about multiple definition
of defRefStablePtr (which Hipmunk doesn't use directly). On my 2nd box and
on dons' one, it was confirmed that configuring the Hipmunk package (not
HipmunkPlayground where the problem appears) with "--enable-split-objs"
makes everything work. I think this is a GHC bug because it works on some
boxes and because there's nothing fancy on Hipmunk (specially about
StablePtr's).
Some possibly useful links:
*
http://hackage.haskell.org/packages/archive/HipmunkPlayground/0.1/logs/failure/ghc-6.8
* http://www.haskell.org/pipermail/haskell-cafe/2008-July/045543.html
I don't have a clue on what is needed to reproduce this bug, but I'll try
to give any info as requested. At first I thought about bug 2100 that got
fixed in 6.8.3, but my 3rd box with 6.8.1 doesn't complain.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2469>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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