https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105302
Bug ID: 105302
Summary: gccgo for Windows using MinGW-w64
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: go
Assignee: ian at airs dot com
Reporter: brechtsanders at users dot sourceforge.net
CC: cmang at google dot com
Target Milestone: ---
I thought I's give building gccgo for Windows using MinGW-w64 another try.
First of all I had to change `configure` to allow me to do that:
```
patch -ulbf configure << EOF
@@ -3577,3 +3577,3 @@
case "\${target}" in
-*-*-darwin* | *-*-cygwin* | *-*-mingw* | bpf-* )
+*-*-darwin* | *-*-cygwin* | bpf-* )
unsupported_languages="\$unsupported_languages go"
@@ -3609,3 +3609,3 @@
;;
- *-*-cygwin* | *-*-mingw*)
+ *-*-cygwin*)
noconfigdirs="\$noconfigdirs target-libgo"
EOF
```
Then I added `go` to `--enable-languages=` and I added `--enable-libgo` to the
`./configure` line.
It got pretty far this time, and I actually go a working `gccgo.exe`, but libgo
wasn't such a success:
```
libtool: compile:
/d/Prog/winlibs64-11.2.0ucrt/home/gcc-12-20220417/build_mingw/./gcc/gccgo
-B/d/Prog/winlibs64-11.2.0ucrt/home/gcc-12-20220417/build_mingw/./gcc/
-L/R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/x86_64-w64-mingw32/lib
-L/R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/mingw/lib -isystem
/R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/x86_64-w64-mingw32/include
-isystem /R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/mingw/include
-B/R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/x86_64-w64-mingw32/bin/
-B/R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/x86_64-w64-mingw32/lib/
-isystem
/R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/x86_64-w64-mingw32/include
-isystem
/R/winlibs64-11.2.0ucrt/inst_gcc-12-20220417/share/gcc/x86_64-w64-mingw32/sys-include
--sysroot=/d/Prog/winlibs64-11.2.0ucrt/home/gcc-12-20220417/build_mingw/mingw-w64
-minline-all-stringops -O2 -g -I . -c -fgo-pkgpath=internal/bytealg
../../../libgo/go/internal/bytealg/bytealg.go
../../../libgo/go/internal/bytealg/compare_native.go
../../../libgo/go/internal/bytealg/count_generic.go
../../../libgo/go/internal/bytealg/equal_generic.go
../../../libgo/go/internal/bytealg/equal_native.go
../../../libgo/go/internal/bytealg/gccgo.go
../../../libgo/go/internal/bytealg/index_native.go
../../../libgo/go/internal/bytealg/indexbyte_native.go -DDLL_EXPORT -o
internal/.libs/bytealg.o
../../../libgo/go/internal/bytealg/bytealg.go:8:21: warning: ./internal/cpu:
Permission denied
8 | "internal/cpu"
| ^
../../../libgo/go/internal/bytealg/bytealg.go:8:21: error: error in import data
at 2329: invalid magic string
```
I feel we're getting closer. Any idea what caused this error?
