[vlc-devel] [PATCH v2 01/10] configure: detect if we can run win32 executables

[Steve Lhomme]

This patchset passes the CI
https://code.videolan.org/robUx4/vlc/pipelines/17273

I can't tell for the nightlies, but locally for windows builds it works 
too. The plugins.dat is correctly generated and part of the .7z, exe and 
.msi packages.

On 2020-05-12 17:08, Steve Lhomme wrote:
> It is possible to run win32 executables when cross compiling with mingw64. It's
> even mandatory to build contribs as it needs to call fxc.exe (currently
> hardcoded to use wine).
> 
> Whether it's in WSL, msys2 or wine, we can run them.
> ---
>   configure.ac | 27 +++++++++++++++++++++++++++
>   1 file changed, 27 insertions(+)
> 
> diff --git a/configure.ac b/configure.ac
> index 4b13af45e46a..cf54d22bee63 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -140,6 +140,7 @@ case "${host_cpu}" in
>           ;;
>   esac
>   
> +RUN_HOST_CMD=
>   case "${host_os}" in
>     "")
>       SYS=unknown
> @@ -645,6 +646,30 @@ dnl Check for broken versions of mingw-runtime compatability library
>   ])
>   
>   
> +AS_IF([test "${SYS}" = "mingw32"], [
> +    dnl
> +    dnl Detect if we can call windows apps
> +    dnl
> +    AC_MSG_CHECKING([whether we can call windows executables])
> +    win32_run_cmd=no
> +    for run_win in "WSLENV=PATH/l" "wine"
> +    do
> +      ac_try="$run_win attrib.exe . 1>/dev/null 2>/dev/null"
> +      (eval "$ac_try") 2>&5
> +      ac_status=$?
> +      if test $ac_status = 0; then
> +        win32_run_cmd=$run_win
> +        break
> +      fi
> +    done
> +    AS_IF([test "x${win32_run_cmd}" != "xno"],[
> +      RUN_HOST_CMD=${win32_run_cmd}
> +      AC_MSG_RESULT([using '${win32_run_cmd} app.exe'])
> +    ],[
> +      AC_MSG_RESULT([not found])
> +    ])
> +])
> +
>   dnl
>   dnl Buggy glibc prevention. Purposedly not cached.
>   dnl See sourceware.org bugs 5058 and 5443.
> @@ -1307,6 +1332,8 @@ case "${host_cpu}" in
>       ;;
>   esac
>   
> +AC_SUBST([RUN_HOST_CMD])
> +
>   dnl Check for backtrace() support
>   AC_CHECK_HEADERS([execinfo.h])
>   AC_CHECK_FUNCS([backtrace])
> -- 
> 2.26.2
> 
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