#3242: ghci: can't load .so/.DLL for: m (addDLL: could not load DLL)
---------------------------+------------------------------------------------
Reporter: jeffz1 | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 7.4.3
Component: GHCi | Version: 7.4.1
Resolution: | Keywords:
Os: Windows | Architecture: x86
Failure: None/Unknown | Difficulty: Unknown
Testcase: | Blockedby:
Blocking: | Related:
---------------------------+------------------------------------------------
Comment(by nus):
The reference to an undefined symbol `_copysignf` is a result of a foreign
import in `IEEE.hs`:
{{{
$ nm ieee754-0.7.3/ghc-7.4.2/HSieee754-0.7.3.o |grep copysignf
U _copysignf
[..snip...]
}}}
{{{
ieee754-0.7.3/Numeric/IEEE.hs:
[...snip...]
foreign import ccall unsafe "copysignf"
[...snip...]
}}}
{{{
$ cabal build
[...snip...]
Building ieee754-0.7.3...
[...snip...]
compile: input file .\Numeric\IEEE.hs
[...snip...]
*** Stg2Stg:
*** CodeGen:
*** CodeOutput:
*** Assembler:
"C:\mnt\data1\ghc32b\lib/../mingw/bin/gcc.exe" "-fno-stack-protector" "-Wl
,--hash-size=31" "-Wl,--reduce-memory-overheads" "-I.\Numeric"
"-Idist\build" "-Idist\build\autogen" "-Idist\build" "-c"
"C:\Users\adm\AppData\Local\Temp\ghc3328_0\ghc3328_0.s" "-o"
"dist\build\Numeric\IEEE.o"
[...snip...]
}}}
{{{
$ grep _copysignf /tmp/ghc3588_0/ghc3588_0.s
call _copysignf
call _copysignf
}}}
{{{
$ nm dist/build/Numeric/IEEE.o |grep copysignf
U _copysignf
00000078 D _ieee754zm0zi7zi3_NumericziIEEE_czucopysignf_closure
00001038 T _ieee754zm0zi7zi3_NumericziIEEE_czucopysignf_info
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3242#comment:21>
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