[GHC] #15945: Unable to compile GHC from source on OpenBSD (-CURRENT)

[GHC]

#15945: Unable to compile GHC from source on OpenBSD (-CURRENT)
-------------------------------------+-------------------------------------
           Reporter:  klomeli        |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.6.3
          Component:  Build System   |           Version:  8.6.2
  (make)                             |
           Keywords:  clang          |  Operating System:  OpenBSD
       Architecture:  x86_64         |   Type of failure:  Building GHC
  (amd64)                            |  failed
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 I am running the following script to build GHC from sources
 (ghc-8.6.2-src.tar.xz) on OpenBSD (-CURRENT):

 {{{
 #! /bin/sh
 set -e

 BUILD_DIR=/usr/local/tmp-build-ghc

 export AUTOCONF_VERSION=2.69
 export AUTOMAKE_VERSION=1.16

 if [ ! -n "$1" ]; then
     echo "ERROR: Provide path for ghc source."
     exit 1
 fi


 echo "Extracting ghc source files from ${1} to ${BUILD_DIR} ..."
 mkdir -p $BUILD_DIR

 cd $BUILD_DIR
 xzcat $1 | tar xvf -

 GHC_DIR=`ls | grep ghc`
 cd $GHC_DIR

 echo "Cleaning up OpenBSD-incompatible commands..."
 find . -type f | xargs sed -i -e 's|^ln -f -v |ln -f |'

 echo "Building GHC... "
 export CC=/usr/bin/clang

 ./boot
 ./configure --with-iconv-libraries=/usr/local/lib \
             --with-iconv-includes=/usr/local/include \
             --with-gmp-libraries=/usr/local/lib \
             --with-gmp-includes=/usr/local/include \
             --with-ffi-libraries=/usr/local/lib \
             --with-ffi-includes=/usr/local/include \
             --with-system-libffi
 gmake
 }}}

 I will file a separate bug report for the **ln** incompatibility with the
 unsupported **-v** flag.

 When compiling GHC, I get the following error:

 {{{

 ...

 "inplace/bin/ghc-stage1" -optc-fno-stack-protector -optc-Wall -optc-Wall
 -optc-Wextra -optc-Wstrict-prototypes -optc-Wmissing-prototypes -optc-
 Wmissing-declarations -optc-Winline -optc-Waggregate-return -optc-
 Wpointer-arith -optc-Wmissing-noreturn -optc-Wnested-externs -optc-
 Wredundant-decls -optc-Wundef -optc-Iincludes -optc-Iincludes/dist -optc-
 Iincludes/dist-derivedconstants/header -optc-Iincludes/dist-
 ghcconstants/header -optc-Irts -optc-Irts/dist/build -optc-DCOMPILING_RTS
 -optc-DFS_NAMESPACE=rts -optc-fno-strict-aliasing -optc-fno-common -optc-
 Irts/dist/build/./autogen -optc-Wno-unknown-pragmas -optc-O2 -optc-fomit-
 frame-pointer -optc-g -optc-DRtsWay=\"rts_v\" -optc-ffunction-sections
 -optc-fdata-sections -static  -H32m -O -Wall   -Iincludes -Iincludes/dist
 -Iincludes/dist-derivedconstants/header -Iincludes/dist-
 ghcconstants/header -Irts -Irts/dist/build -DCOMPILING_RTS
 -DFS_NAMESPACE=rts -this-unit-id rts -dcmm-lint      -i -irts
 -irts/dist/build -Irts/dist/build -irts/dist/build/./autogen
 -Irts/dist/build/./autogen            -O2 -Wcpp-undef    -Wnoncanonical-
 monad-instances  -c rts/RtsSymbols.c -o rts/dist/build/RtsSymbols.o

 rts/RtsSymbols.c:990:1: error:
      error: redefinition of '_DYNAMIC' as different kind of symbol
     |
 990 | RTS_OPENBSD_ONLY_SYMBOLS
     | ^
 RTS_OPENBSD_ONLY_SYMBOLS
 ^

 rts/RtsSymbols.c:283:22: error:
      note: expanded from macro 'RTS_OPENBSD_ONLY_SYMBOLS'
          SymE_NeedsProto(_DYNAMIC)
                          ^
     |
 283 |      SymE_NeedsProto(_DYNAMIC)
     |                      ^

 /usr/include/sys/exec_elf.h:765:17: error:
      note: previous definition is here
     |
 765 | extern Elf_Dyn          _DYNAMIC[];
     |                 ^
 extern Elf_Dyn          _DYNAMIC[];
                         ^
 1 error generated.
 `clang' failed in phase `C Compiler'. (Exit code: 1)
 gmake[1]: *** [rts/ghc.mk:315: rts/dist/build/RtsSymbols.o] Error 1
 gmake: *** [Makefile:127: all] Error 2
 }}}

 Any suggestions appreciated. Thanks!

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15945>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler