Maybe gcc.exe is the 64 version, since you installed mingw64. Have you tried it with cgo?
On Monday, January 30, 2017 at 6:31:40 PM UTC+1, Roberto Zanotto wrote: > > That's strange. I'm 100% positive that i686-w64-mingw32 is 32bit > and x86_64-w64-mingw32 is 64bit. > The help message that you are citing seems to suggest that > i686-w64-mingw32 can produce 64bit code with -m64 flag, > but searching for info on that flag I found this: > http://stackoverflow.com/questions/34890796/m64-and-m32-flags/34891019 > which is the same error that you are getting. > Install and use x86_64-w64-mingw32 if you can, I installed it through > cygwin on my system and cgo just works. > > On Monday, January 30, 2017 at 5:54:25 PM UTC+1, Arie van Wingerden wrote: >> >> I absolutely installed Mingw64 and there are only 2 gcc.exe files: >> 1. gcc.exe (seems to be 32 bit) >> 2. i686-w64-mingw32-gcc.exe (seems to be 64 bit) >> in the help of this one it says: >> -m64 Generate 64bit x86-64 code. >> so must be an x64 compiler ... >> >> >> 2017-01-30 17:45 GMT+01:00 Roberto Zanotto <roby...@gmail.com>: >> >>> I suppose the error comes from the fact that you are using the 32bit >>> compiler. *i686*-w64-mingw32-gcc.exe is 32bit, try with >>> x86_64-w64-mingw32-gcc.exe >>> >>> If CC is set correctly, cgo should use that. If you are worried that >>> gcc.exe is being used, temporarily move gcc.exe where cgo can't find it and >>> try to compile again. >>> >>> >>> On Monday, January 30, 2017 at 4:32:34 PM UTC+1, Arie van Wingerden >>> wrote: >>>> >>>> I try to use CGO on Windows >>>> >>>> I installed Mingw64 from here: >>>> >>>> https://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Automated%20Builds/ >>>> >>>> My Go env vars are like so: >>>> set CC=i686-w64-mingw32-gcc.exe >>>> set GOROOT=e:\programs\go64 >>>> set GOPATH=e:\src\go >>>> set GOOS=windows >>>> set GOARCH=amd64 >>>> set GOBIN=e:\src\go\bin64 >>>> set MINGWPATH=e:\programs\mingw64\mingw32\bin >>>> set PATH=%GOROOT%\%MINGWPATH%\bin;%PATH% >>>> >>>> Is there a way to see if Go does indeed use i686-w64-mingw32-gcc.exe >>>> and not gcc.exe? >>>> >>>> I try to go run the attached main.go and get this error: >>>> E:\src\go\src\ui-andlabs>go run main.go >>>> # github.com/andlabs/ui >>>> cc1.exe: sorry, unimplemented: 64-bit mode not compiled in >>>> which seems to tell me that something is wrong with 64 bit mode; but >>>> what is it... >>>> >>>> Any idea? >>>> >>>> >>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "golang-nuts" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to golang-nuts...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
