Error cross-compiling binutils-gdb for windows

[Stepan Klymonchuk]

I cloned binutils-gdb repository from here (master branch) on a linux machine (Ubuntu) and I want to compile it for Windows (using x86_64_w64_mingw32 toolchain).

First, I ran ./configure with the following options to specify the cross-compile toolchain.

./configure --prefix=/usr/x86_64-w64-mingw32 --target=arm-none-eabi --host=x86_64-w64-mingw32

Then I ran make and get the following error (I omitted most of the output because it is pretty large):

[...]
x86_64-w64-mingw32-gcc  -DHAVE_CONFIG_H  -DWITH_DEFAULT_ALIGNMENT=STRICT_ALIGNMENT     -DDEFAULT_INLINE=0   -Wall -Wdeclaration-after-statement -Wpointer-arith -Wpointer-sign -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wmissing-prototypes -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type -Wold-style-declaration -Wold-style-definition -Wno-format -Werror  -DMODET -I. -I. -I../common -I./../common -I../../include -I./../../include -I../../bfd -I./../../bfd -I../../opcodes -I./../../opcodes -I../../intl -g -O2     -c -o callback.o -MT callback.o -MMD -MP -MF .deps/callback.Tpo ./../common/callback.c
./../common/callback.c: In function ‘os_time’:
./../common/callback.c:417:25: error: passing argument 1 of ‘time’ from incompatible pointer type [-Werror=incompatible-pointer-types]
  417 |   return wrap (p, time (t));
      |                         ^
      |                         |
      |                         long int *
In file included from ./../common/callback.c:35:
/usr/share/mingw-w64/include/time.h:230:47: note: expected ‘time_t *’ {aka ‘long long int *’} but argument is of type ‘long int *’
  230 | static __inline time_t __CRTDECL time(time_t *_Time) { return _time64(_Time); }
      |                                       ~~~~~~~~^~~~~
cc1: all warnings being treated as errors
make[3]: *** [Makefile:513: callback.o] Error 1
make[3]: Leaving directory '/media/D/Work/FC/binutils-gdb/sim/arm'
make[2]: *** [Makefile:928: all-recursive] Error 1
make[2]: Leaving directory '/media/D/Work/FC/binutils-gdb/sim'
make[1]: *** [Makefile:8376: all-sim] Error 2
make[1]: Leaving directory '/media/D/Work/FC/binutils-gdb'
make: *** [Makefile:915: all] Error 2

I think it has something to do with time_t being typedef'd as a long long int (64 bit integer) in the host platform (Windows), however, the function os_time from the file sim/common/callback.c:414 (path relative to project root), takes a long (32 bit integer) as a parameter:

static long
os_time (host_callback *p, long *t)
{
  return wrap (p, time (t));
}

How can I fix this error?

Stepan Klymonchuk