Thank you very much for your response. Removing the '-D__attribute__(A)=' field from cpp-options in glib.cabal and also in following packages indeed did the trick. After spending the last couple of weekends on sorting things out to make the gtk package work on the haskell plattform/ghc release rather unsuccessfully I was really glad to be greeted with the following lines: $ runhaskell Setup install Installing library in C:\Users\PC-08\AppData\Roaming\cabal\x86_64-windows-ghc-7.11.20151024\gtk3-0.14.1-5qebDIGBW46XNcTrIexOxy Registering gtk3-0.14.1... Now I can finally continue to focus my attention on the actual project. Thanks again for your concise (and very helpful) answer. Keep up the good work! Best regards Burkhard On 25.10.2015 16:37, Matej Borovec wrote:

The problem seems to be in "cpp-options" field in glib.cabal where "__attribute__(A)" is redefined to nothing. This seems to cause problems only with head GHC because in head MinGW that comes with GHC is upgraded to 5.2.

Simply removing that redefinition from .cabal fixed problem for me. Note that you will need to do the same thing for pango and gio packages.

On Sunday, October 25, 2015 3:17 PM, Burkhard Groh wrote:

In my latest attempt to finally build the gtk3 package with ghc-head 'ghc-master' (7.11.20151024) for a current project under windows x64 using the latest msys2-version and its supplied gtk3 libraries (mingw64/mingw-w64-x86_64-gtk3 3.18.2-1) I encountered this cryptical (linking) error. (See complete log for command './Setup build -v3' attached) I should add that I'm rather a beginner with regards to the Haskell language and its package distribution system cabal. Thus all thoughts, ideas and suggestions how to fix this problem are welcome.

Best regards Burkhard

complete building response in msys2-shell using the mingw64 script:

$ ./Setup build -v3 Component build order: library creating dist\build creating dist\build\autogen Building glib-0.13.2.1... Environment: [("","C:=C:\\Windows\\System32"),("ACLOCAL_PATH","C:\\MSYS2\\mingw64\\share\\aclocal;C:\\MSYS2\\usr\\share\\aclocal"),("ALLUSERSPROFILE","C:\\ProgramData"),("APPDATA","C:\\Users\\PC-08\\AppData\\Roaming"),("CHECKDEF","C:\\Applications\\wingx\\bin"),("COMMONPROGRAMFILES","C:\\Program

Files\\Common Files"),("COMMONPROGRAMFILES(X86)","C:\\Program Files (x86)\\Common Files"),("COMMONPROGRAMW6432","C:\\Program Files\\Common Files"),("COMPUTERNAME","PC-08"),("COMSPEC","C:\\Windows\\system32\\cmd.exe"),("FP_NO_HOST_CHECK","NO"),("HOME","C:\\MSYS2\\home\\Ms

PC-08"),("HOMEDRIVE","C:"),("HOMEPATH","\\Users\\PC-08"),("HOSTNAME","PC-08"),("INFOPATH","C:\\MSYS2\\usr\\local\\info;C:\\MSYS2\\usr\\share\\info;C:\\MSYS2\\usr\\info;C:\\MSYS2\\share\\info"),("LANG","de_DE.UTF-8"),("LOCALAPPDATA","C:\\Users\\PC-08\\AppData\\Local"),("LOGONSERVER","\\\\PC-08"),("MANPATH","C:\\MSYS2\\mingw64\\share\\man;C:\\MSYS2\\usr\\local\\man;C:\\MSYS2\\usr\\share\\man;C:\\MSYS2\\usr\\man;C:\\MSYS2\\share\\man"),("MSYSCON","mintty.exe"),("MSYSTEM","MINGW64"),("NUMBER_OF_PROCESSORS","4"),("OLDPWD","C:/MSYS2/home/Ms

PC-08/cabal"),("ORTEPDIR","C:\\Applications\\ortep3"),("OS","Windows_NT"),("PATH","C:\\Users\\PC-08\\AppData\\Roaming\\cabal\\bin;C:\\Haskell\\ghc-7.11.20151024\\bin;C:\\Haskell\\ghc-7.11.20151024\\mingw\\bin;C:\\MSYS2\\mingw64\\bin;C:\\MSYS2\\usr\\local\\bin;C:\\MSYS2\\usr\\bin;C:\\MSYS2\\usr\\bin;C:\\Program

Files (x86)\\CambridgeSoft\\ChemOffice2015\\ChemScript\\Lib;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0;C:\\Program

Files (x86)\\ATI Technologies\\ATI.ACE\\Core-Static;C:\\Program Files\\Intel\\WiFi\\bin;C:\\Program Files\\Common Files\\Intel\\WirelessCommon;C:\\Applications\\LinksPortable;C:\\Program Files\\Intel\\WiFi\\bin;C:\\Program Files\\Common Files\\Intel\\WirelessCommon;C:\\Program Files\\Miktex\\miktex\\bin\\x64;C:\\MSYS2\\usr\\bin\\site_perl;C:\\MSYS2\\usr\\bin\\vendor_perl;C:\\MSYS2\\usr\\bin\\core_perl;C:\\Users\\PC-08\\AppData\\Roaming\\cabal\\bin;C:\\Users\\PC-08\\AppData\\Roaming\\cabal\\bin"),("PATHEXT",".COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC"),("PGFONT","C:\\Applications\\wingx\\files\\grfont.dat"),("PKG_CONFIG_PATH","C:\\MSYS2\\mingw64\\lib\\pkgconfig;C:\\MSYS2\\mingw64\\share\\pkgconfig"),("PRINTER","Brother

HL-5270DN"),("PROCESSOR_ARCHITECTURE","AMD64"),("PROCESSOR_IDENTIFIER","Intel64

Family 6 Model 69 Stepping 1, GenuineIntel"),("PROCESSOR_LEVEL","6"),("PROCESSOR_REVISION","4501"),("PROGRAMDATA","C:\\ProgramData"),("PROGRAMFILES","C:\\Program

Files"),("PROGRAMFILES(X86)","C:\\Program Files (x86)"),("PROGRAMW6432","C:\\Program Files"),("PROMPT","$P$G"),("PS1","\\[\\e]0;\\w\\a\\]\\n\\[\\e[32m\\]\\u@\\h

\\[\\e[35m\\]$MSYSTEM\\[\\e[0m\\] \\[\\e[33m\\]\\w\\[\\e[0m\\]\\n\\$ "),("PSMODULEPATH","C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules\\"),("PUBLIC","C:\\Users\\Public"),("PWD","C:/Haskell/gtk2hs-master/glib"),("PYTHONPATH","C:\\Program

Files (x86)\\CambridgeSoft\\ChemOffice2015\\ChemScript\\Lib"),("RASMOLPATH","C:\\Program

Files (x86)\\RasWin"),("SESSIONNAME","Console"),("SHELL","C:/MSYS2/usr/bin/bash"),("SHLVL","1"),("SYSTEMDRIVE","C:"),("SYSTEMROOT","C:\\Windows"),("TEMP","C:\\Users\\PC-08\\AppData\\Local\\Temp"),("TERM","xterm-256color"),("TMP","C:\\Users\\PC-08\\AppData\\Local\\Temp"),("UOIPME_REG_PATH","C:\\Program

Files\\Intel Corporation\\USB over IP"),("USER","Ms PC-08"),("USERDOMAIN","PC-08"),("USERNAME","Ms PC-08"),("USERPROFILE","C:\\Users\\PC-08"),("VS110COMNTOOLS","C:\\Program Files (x86)\\Microsoft Visual Studio 11.0\\Common7\\Tools\\"),("VS120COMNTOOLS","C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\Common7\\Tools\\"),("WD","C:\\MSYS2\\usr\\bin\\"),("WINDIR","C:\\Windows"),("WINGXDIR","C:\\Applications\\wingx"),("XML_CATALOG_FILES","C:/MSYS2/etc/xml/docbook-xml

/etc/xml/catalog"),("_","./Setup")] ("C:\\Haskell\\ghc-7.11.20151024\\bin\\ghc-pkg.exe",["init","dist\\package.conf.inplace","-v2"]) writing cache dist\package.conf.inplace\package.cache Preprocessing library glib-0.13.2.1... creating dist\build\System\Glib Environment: [("","C:=C:\\Windows\\System32"),("ACLOCAL_PATH","C:\\MSYS2\\mingw64\\share\\aclocal;C:\\MSYS2\\usr\\share\\aclocal"),("ALLUSERSPROFILE","C:\\ProgramData"),("APPDATA","C:\\Users\\PC-08\\AppData\\Roaming"),("CHECKDEF","C:\\Applications\\wingx\\bin"),("COMMONPROGRAMFILES","C:\\Program

Files\\Common Files"),("COMMONPROGRAMFILES(X86)","C:\\Program Files (x86)\\Common Files"),("COMMONPROGRAMW6432","C:\\Program Files\\Common Files"),("COMPUTERNAME","PC-08"),("COMSPEC","C:\\Windows\\system32\\cmd.exe"),("FP_NO_HOST_CHECK","NO"),("HOME","C:\\MSYS2\\home\\Ms

PC-08"),("HOMEDRIVE","C:"),("HOMEPATH","\\Users\\PC-08"),("HOSTNAME","PC-08"),("INFOPATH","C:\\MSYS2\\usr\\local\\info;C:\\MSYS2\\usr\\share\\info;C:\\MSYS2\\usr\\info;C:\\MSYS2\\share\\info"),("LANG","de_DE.UTF-8"),("LOCALAPPDATA","C:\\Users\\PC-08\\AppData\\Local"),("LOGONSERVER","\\\\PC-08"),("MANPATH","C:\\MSYS2\\mingw64\\share\\man;C:\\MSYS2\\usr\\local\\man;C:\\MSYS2\\usr\\share\\man;C:\\MSYS2\\usr\\man;C:\\MSYS2\\share\\man"),("MSYSCON","mintty.exe"),("MSYSTEM","MINGW64"),("NUMBER_OF_PROCESSORS","4"),("OLDPWD","C:/MSYS2/home/Ms

PC-08/cabal"),("OS","Windows_NT"),("PATH","C:\\Users\\PC-08\\AppData\\Roaming\\cabal\\bin;C:\\Haskell\\ghc-7.11.20151024\\bin;C:\\Haskell\\ghc-7.11.20151024\\mingw\\bin;C:\\MSYS2\\mingw64\\bin;C:\\MSYS2\\usr\\local\\bin;C:\\MSYS2\\usr\\bin;C:\\MSYS2\\usr\\bin;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0;C:\\Program

Files (x86)\\ATI Technologies\\ATI.ACE\\Core-Static;C:\\Program Files\\Intel\\WiFi\\bin;C:\\Program Files\\Common Files\\Intel\\WirelessCommon;C:\\Program Files\\Intel\\WiFi\\bin;C:\\Program Files\\Common Files\\Intel\\WirelessCommon;C:\\Program Files\\Miktex\\miktex\\bin\\x64;C:\\MSYS2\\usr\\bin\\site_perl;C:\\MSYS2\\usr\\bin\\vendor_perl;C:\\MSYS2\\usr\\bin\\core_perl;C:\\Users\\PC-08\\AppData\\Roaming\\cabal\\bin;C:\\Users\\PC-08\\AppData\\Roaming\\cabal\\bin"),("PATHEXT",".COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC"),("PGFONT","C:\\Applications\\wingx\\files\\grfont.dat"),("PKG_CONFIG_PATH","C:\\MSYS2\\mingw64\\lib\\pkgconfig;C:\\MSYS2\\mingw64\\share\\pkgconfig"),("PRINTER",""),("PROCESSOR_ARCHITECTURE","AMD64"),("PROCESSOR_IDENTIFIER","Intel64

Family 6 Model 69 Stepping 1, GenuineIntel"),("PROCESSOR_LEVEL","6"),("PROCESSOR_REVISION","4501"),("PROGRAMDATA","C:\\ProgramData"),("PROGRAMFILES","C:\\Program

Files"),("PROGRAMFILES(X86)","C:\\Program Files (x86)"),("PROGRAMW6432","C:\\Program Files"),("PROMPT","$P$G"),("PS1","\\[\\e]0;\\w\\a\\]\\n\\[\\e[32m\\]\\u@\\h

\\[\\e[35m\\]$MSYSTEM\\[\\e[0m\\] \\[\\e[33m\\]\\w\\[\\e[0m\\]\\n\\$ "),("PSMODULEPATH","C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules\\"),("PUBLIC","C:\\Users\\Public"),("PWD","C:/Haskell/gtk2hs-master/glib"),("PYTHONPATH","C:\\Program

Files (x86)\\CambridgeSoft\\ChemOffice2015\\ChemScript\\Lib"),("RASMOLPATH","C:\\Program

Files (x86)\\RasWin"),("SESSIONNAME","Console"),("SHELL","C:/MSYS2/usr/bin/bash"),("SHLVL","1"),("SYSTEMDRIVE","C:"),("SYSTEMROOT","C:\\Windows"),("TEMP","C:\\Users\\PC-08\\AppData\\Local\\Temp"),("TERM","xterm-256color"),("TMP","C:\\Users\\PC-08\\AppData\\Local\\Temp"),("UOIPME_REG_PATH","C:\\Program

Files\\Intel Corporation\\USB over IP"),("USER","Ms PC-08"),("USERDOMAIN","PC-08"),("USERNAME","Ms PC-08"),("USERPROFILE","C:\\Users\\PC-08"),("VS110COMNTOOLS","C:\\Program Files (x86)\\Microsoft Visual Studio 11.0\\Common7\\Tools\\"),("VS120COMNTOOLS","C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\Common7\\Tools\\"),("WD","C:\\MSYS2\\usr\\bin\\"),("WINDIR","C:\\Windows"),("WINGXDIR","C:\\Applications\\wingx"),("XML_CATALOG_FILES","C:/MSYS2/etc/xml/docbook-xml

/etc/xml/catalog"),("_","./Setup")] ("C:\\Haskell\\ghc-7.11.20151024\\bin\\hsc2hs.exe",["--cc=C:\\Haskell\\ghc-7.11.20151024\\mingw\\bin\\gcc.exe","--ld=C:\\Haskell\\ghc-7.11.20151024\\mingw\\bin\\gcc.exe","--cflag=-fno-stack-protector","--lflag=-fno-stack-protector","--cflag=-D__GLASGOW_HASKELL__=711","--cflag=-Dmingw32_BUILD_OS=1","--cflag=-Dx86_64_BUILD_ARCH=1","--cflag=-Dmingw32_HOST_OS=1","--cflag=-Dx86_64_HOST_ARCH=1","--cflag=-Idist\\build\\autogen","--cflag=-Idist\\build","--cflag=-ISystem/Glib","--cflag=-IC:/MSYS2/mingw64/include/glib-2.0","--cflag=-IC:/MSYS2/mingw64/lib/glib-2.0/include","--cflag=-mms-bitfields","--cflag=-U__BLOCKS__","--cflag=-D__attribute__(A)=","--cflag=-DUSE_GCLOSURE_SIGNALS_IMPL","--cflag=-Idist\\build\\autogen","--cflag=-include","--cflag=dist\\build\\autogen\\cabal_macros.h","--lflag=-LC:/MSYS2/mingw64/lib","--lflag=-lgobject-2.0","--lflag=-lglib-2.0","--lflag=-lintl","--cflag=-IC:\\Haskell\\ghc-7.11.20151024\\lib\\bytestring-0.10.6.0\\include","--cflag=-IC:\\Haskell\\ghc-7.11.20151024 \\lib\\base-4.8.2.0\\include","--cflag=-IC:\\Haskell\\ghc-7.11.20151024\\lib\\integer-gmp-1.0.0.0\\include","--cflag=-IC:\\Haskell\\ghc-7.11.20151024\\lib/include","--lflag=-LC:\\Users\\PC-08\\AppData\\Roaming\\cabal\\x86_64-windows-ghc-7.11.20151024\\utf8s_LAIfwUZWplI3JK3b6W44Yv","--lflag=-LC:\\Users\\PC-08\\AppData\\Roaming\\cabal\\x86_64-windows-ghc-7.11.20151024\\text_IqwR9CiNGjxJyQdu3bLbNv","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\binary-0.7.5.0","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\containers-0.5.6.2","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\bytestring-0.10.6.0","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\deepseq-1.4.1.1","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\array-0.5.1.0","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\base-4.8.2.0","--lflag=-lwsock32","--lflag=-luser32","--lflag=-lshell32","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\integer-gmp-1.0.0.0","--lflag=-LC:\\Haskell\\ghc-7.11.20151024\\lib\\ghc-prim-0.4.0.0","--lflag=-LC: \\Haskell\\ghc-7.11.20151024\\lib/rts","--lflag=-lm","--lflag=-lwsock32","--lflag=-lgdi32","--lflag=-lwinmm","-o","dist\\build\\System\\Glib\\StoreValue.hs","System\\Glib\\StoreValue.hsc"]) dist\build\System\Glib\StoreValue_hsc_utils.o:StoreValue_hsc_utils.c:(.text+0x0):

multiple definition of `__debugbreak' dist\build\System\Glib\StoreValue_hsc_make.o:StoreValue_hsc_make.c:(.text+0x0):

first defined here collect2.exe: error: ld returned 1 exit status linking dist\build\System\Glib\StoreValue_hsc_make.o failed (exit code 1) command was: C:\Haskell\ghc-7.11.20151024\mingw\bin\gcc.exe dist\build\System\Glib\StoreValue_hsc_make.o dist\build\System\Glib\StoreValue_hsc_utils.o -o dist\build\System\Glib\StoreValue_hsc_make.exe -fno-stack-protector -LC:/MSYS2/mingw64/lib -lgobject-2.0 -lglib-2.0 -lintl -LC:\Users\PC-08\AppData\Roaming\cabal\x86_64-windows-ghc-7.11.20151024\utf8s_LAIfwUZWplI3JK3b6W44Yv

-LC:\Users\PC-08\AppData\Roaming\cabal\x86_64-windows-ghc-7.11.20151024\text_IqwR9CiNGjxJyQdu3bLbNv

-LC:\Haskell\ghc-7.11.20151024\lib\binary-0.7.5.0 -LC:\Haskell\ghc-7.11.20151024\lib\containers-0.5.6.2 -LC:\Haskell\ghc-7.11.20151024\lib\bytestring-0.10.6.0 -LC:\Haskell\ghc-7.11.20151024\lib\deepseq-1.4.1.1 -LC:\Haskell\ghc-7.11.20151024\lib\array-0.5.1.0 -LC:\Haskell\ghc-7.11.20151024\lib\base-4.8.2.0 -lwsock32 -luser32 -lshell32 -LC:\Haskell\ghc-7.11.20151024\lib\integer-gmp-1.0.0.0 -LC:\Haskell\ghc-7.11.20151024\lib\ghc-prim-0.4.0.0 -LC:\Haskell\ghc-7.11.20151024\lib/rts -lm -lwsock32 -lgdi32 -lwinmm C:\Haskell\ghc-7.11.20151024\bin\hsc2hs.exe returned ExitFailure 1

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