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Sometimes '-optl-optl' used for linker options instead of just '-optl'

The build system does not construct some linker options correctly. For some options it doubles the -optl switch, resulting in options like

   -optl-optl-Wl,-arch -optl-optl-Wl,x86_64

being passed to GHC, instead of

   -optl-Wl,-arch -optl-Wl,x86_64

Root cause: in rules/distdir-way-opts.mk, $1_$2_$3_ALL_LD_OPTS is constructed with

# Options for passing to gcc for linking
$1_$2_$3_ALL_LD_OPTS = \
... \
$$(foreach o,$$(EXTRA_LD_LINKER_OPTS),-optl-Wl$$(comma)$$o) \
$$(foreach o,$$(CONF_LD_LINKER_OPTS_STAGE$4),-optl-Wl$$(comma)$$o)

Which is then used in

# Options for passing to GHC when we use it for linking
$1_$2_$3_GHC_LD_OPTS = \
 $$(addprefix -optl, $$($1_$2_$3_ALL_LD_OPTS)) \
 $$($1_$2_$3_MOST_HC_OPTS)

The -optl in the foreach invocations in $1_$2_$3_ALL_LD_OPTS is not necessary, it is handled already by the addprefix call in $1_$2_$3_GHC_LD_OPTS.

Example link command line generated by the the build system, showing the problem:

"${HOME}/.stack/programs/x86_64-osx/ghc-7.10.3/bin/ghc" -o utils/hsc2hs/dist/build/tmp/hsc2hs
  -hisuf hi -osuf  o -hcsuf hc -static  -H32m -O -Wall   
  -package-db libraries/bootstrapping.conf  -hide-all-packages 
  -i -iutils/hsc2hs/. -iutils/hsc2hs/dist/build -iutils/hsc2hs/dist/build/autogen
  -Iutils/hsc2hs/dist/build -Iutils/hsc2hs/dist/build/autogen
     -optP-include -optPutils/hsc2hs/dist/build/autogen/cabal_macros.h
  -package-id base-4.8.2.0-cc43d8e06aa74e9c4c0132becc49ee25
  -package-id containers-0.5.6.2-68e3ece8a4f91a31e327fe89f8052a53
  -package-id directory-1.2.2.0-3b3e1a8d629ccaa6c4588a9bb46bb163
  -package-id filepath-1.4.0.0-f97d1e4aebfd7a03be6980454fe31d6e
  -package-id process-1.2.3.0-a1a69425f3f6c11a82785be7baab3b68
  -XHaskell2010  -no-user-package-db -rtsopts
       -odir utils/hsc2hs/dist/build -hidir utils/hsc2hs/dist/build
  -stubdir utils/hsc2hs/dist/build
    -optl-optl-Wl,-arch -optl-optl-Wl,x86_64
  -static  -H32m -O -Wall   -package-db libraries/bootstrapping.conf
  -hide-all-packages -i -iutils/hsc2hs/. -iutils/hsc2hs/dist/build
  -iutils/hsc2hs/dist/build/autogen 
  -Iutils/hsc2hs/dist/build -Iutils/hsc2hs/dist/build/autogen
     -optP-include -optPutils/hsc2hs/dist/build/autogen/cabal_macros.h
  -package-id base-4.8.2.0-cc43d8e06aa74e9c4c0132becc49ee25
  -package-id containers-0.5.6.2-68e3ece8a4f91a31e327fe89f8052a53
  -package-id directory-1.2.2.0-3b3e1a8d629ccaa6c4588a9bb46bb163
  -package-id filepath-1.4.0.0-f97d1e4aebfd7a03be6980454fe31d6e
  -package-id process-1.2.3.0-a1a69425f3f6c11a82785be7baab3b68
  -XHaskell2010  -no-user-package-db -rtsopts       
  utils/hsc2hs/dist/build/Main.o 
  utils/hsc2hs/dist/build/C.o 
  utils/hsc2hs/dist/build/Common.o 
  utils/hsc2hs/dist/build/CrossCodegen.o 
  utils/hsc2hs/dist/build/DirectCodegen.o 
  utils/hsc2hs/dist/build/Flags.o 
  utils/hsc2hs/dist/build/HSCParser.o 
  utils/hsc2hs/dist/build/UtilsCodegen.o 
  utils/hsc2hs/dist/build/Paths_hsc2hs.o

It affects all operating systems as far as I can tell, but only seems to cause a build failure on Solaris, see #13091 (closed).

Looks like this was introduced in commit 87c3b1d, in release 8.2.1, backported to 8.0.2 in commit c5f375c.

Trac metadata
Trac field Value
Version 8.0.2
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Build System
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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