[6/6] configure: Fix include and linkage issue on msys2

On msys2, the -I/e/path/to/qemu -L/e/path/to/qemu are not recognized by the compiler
Cause $PWD are result posix style path such as /e/path/to/qemu that can not be recognized
by mingw gcc, and `pwd -W` are result Windows style path such as E:/path/to/qemu that can
be recognized by the mingw gcc. So we replace all $PWD with $build_path that can
building qemu under msys2/mingw environment.

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
---
 configure | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

On 02/09/20 19:00, Yonggang Luo wrote:
> On msys2, the -I/e/path/to/qemu -L/e/path/to/qemu are not recognized by the compiler
> Cause $PWD are result posix style path such as /e/path/to/qemu that can not be recognized
> by mingw gcc, and `pwd -W` are result Windows style path such as E:/path/to/qemu that can
> be recognized by the mingw gcc. So we replace all $PWD with $build_path that can
> building qemu under msys2/mingw environment.
> 
> Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>

I'm dropping this patch in favor of relative -L and -I paths.

Paolo

>  configure | 28 +++++++++++++++++++---------
>  1 file changed, 19 insertions(+), 9 deletions(-)
> 
> diff --git a/configure b/configure
> index 30f8c4db29..5f2bcc4b57 100755
> --- a/configure
> +++ b/configure
> @@ -13,8 +13,13 @@ export CCACHE_RECACHE=yes
>  
>  # make source path absolute
>  source_path=$(cd "$(dirname -- "$0")"; pwd)
> +build_path=$PWD
> +if [ "$MSYSTEM" = "MINGW64" -o  "$MSYSTEM" = "MINGW32" ]; then
> +source_path=$(cd "$(dirname -- "$0")"; pwd -W)
> +build_path=`pwd -W`
> +fi
>  
> -if test "$PWD" = "$source_path"
> +if test "$build_path" = "$source_path"
>  then
>      echo "Using './build' as the directory for build output"
>  
> @@ -346,7 +351,12 @@ ld_has() {
>      $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
>  }
>  
> -if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
> +check_valid_build_path="[[:space:]:]"
> +if [ "$MSYSTEM" = "MINGW64" -o  "$MSYSTEM" = "MINGW32" ]; then
> +check_valid_build_path="[[:space:]]"
> +fi
> +
> +if printf %s\\n "$source_path" "$build_path" | grep -q "$check_valid_build_path";
>  then
>    error_exit "main directory cannot contain spaces nor colons"
>  fi
> @@ -943,7 +953,7 @@ Linux)
>    linux="yes"
>    linux_user="yes"
>    kvm="yes"
> -  QEMU_INCLUDES="-isystem ${source_path}/linux-headers -I$PWD/linux-headers $QEMU_INCLUDES"
> +  QEMU_INCLUDES="-isystem ${source_path}/linux-headers -I${build_path}/linux-headers $QEMU_INCLUDES"
>    libudev="yes"
>  ;;
>  esac
> @@ -4259,7 +4269,7 @@ EOF
>            fdt=git
>            mkdir -p dtc
>            fdt_cflags="-I${source_path}/dtc/libfdt"
> -          fdt_ldflags="-L$PWD/dtc/libfdt"
> +          fdt_ldflags="-L${build_path}/dtc/libfdt"
>            fdt_libs="$fdt_libs"
>        elif test "$fdt" = "yes" ; then
>            # Not a git build & no libfdt found, prompt for system install
> @@ -5244,7 +5254,7 @@ case "$capstone" in
>      else
>        LIBCAPSTONE=libcapstone.a
>      fi
> -    capstone_libs="-L$PWD/capstone -lcapstone"
> +    capstone_libs="-L${build_path}/capstone -lcapstone"
>      capstone_cflags="-I${source_path}/capstone/include"
>      ;;
>  
> @@ -6244,8 +6254,8 @@ case "$slirp" in
>        git_submodules="${git_submodules} slirp"
>      fi
>      mkdir -p slirp
> -    slirp_cflags="-I${source_path}/slirp/src -I$PWD/slirp/src"
> -    slirp_libs="-L$PWD/slirp -lslirp"
> +    slirp_cflags="-I${source_path}/slirp/src -I${build_path}/slirp/src"
> +    slirp_libs="-L${build_path}/slirp -lslirp"
>      if test "$mingw32" = "yes" ; then
>        slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
>      fi
> @@ -8190,7 +8200,7 @@ fi
>  mv $cross config-meson.cross
>  
>  rm -rf meson-private meson-info meson-logs
> -NINJA=${ninja:-$PWD/ninjatool} $meson setup \
> +NINJA=${ninja:-${build_path}/ninjatool} $meson setup \
>          --prefix "${pre_prefix}$prefix" \
>          --libdir "${pre_prefix}$libdir" \
>          --libexecdir "${pre_prefix}$libexecdir" \
> @@ -8212,7 +8222,7 @@ NINJA=${ninja:-$PWD/ninjatool} $meson setup \
>  	-Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
>  	-Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f\
>          $cross_arg \
> -        "$PWD" "$source_path"
> +        "$build_path" "$source_path"
>  
>  if test "$?" -ne 0 ; then
>      error_exit "meson setup failed"
>

I am OK with that, I just need to this make the CI green, once your patch
upstream, I'll drop this

On Thu, Sep 3, 2020 at 1:05 AM Paolo Bonzini <pbonzini@redhat.com> wrote:

> On 02/09/20 19:00, Yonggang Luo wrote:
> > On msys2, the -I/e/path/to/qemu -L/e/path/to/qemu are not recognized by
> the compiler
> > Cause $PWD are result posix style path such as /e/path/to/qemu that can
> not be recognized
> > by mingw gcc, and `pwd -W` are result Windows style path such as
> E:/path/to/qemu that can
> > be recognized by the mingw gcc. So we replace all $PWD with $build_path
> that can
> > building qemu under msys2/mingw environment.
> >
> > Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
>
> I'm dropping this patch in favor of relative -L and -I paths.
>
> Paolo
>
> >  configure | 28 +++++++++++++++++++---------
> >  1 file changed, 19 insertions(+), 9 deletions(-)
> >
> > diff --git a/configure b/configure
> > index 30f8c4db29..5f2bcc4b57 100755
> > --- a/configure
> > +++ b/configure
> > @@ -13,8 +13,13 @@ export CCACHE_RECACHE=yes
> >
> >  # make source path absolute
> >  source_path=$(cd "$(dirname -- "$0")"; pwd)
> > +build_path=$PWD
> > +if [ "$MSYSTEM" = "MINGW64" -o  "$MSYSTEM" = "MINGW32" ]; then
> > +source_path=$(cd "$(dirname -- "$0")"; pwd -W)
> > +build_path=`pwd -W`
> > +fi
> >
> > -if test "$PWD" = "$source_path"
> > +if test "$build_path" = "$source_path"
> >  then
> >      echo "Using './build' as the directory for build output"
> >
> > @@ -346,7 +351,12 @@ ld_has() {
> >      $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
> >  }
> >
> > -if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
> > +check_valid_build_path="[[:space:]:]"
> > +if [ "$MSYSTEM" = "MINGW64" -o  "$MSYSTEM" = "MINGW32" ]; then
> > +check_valid_build_path="[[:space:]]"
> > +fi
> > +
> > +if printf %s\\n "$source_path" "$build_path" | grep -q
> "$check_valid_build_path";
> >  then
> >    error_exit "main directory cannot contain spaces nor colons"
> >  fi
> > @@ -943,7 +953,7 @@ Linux)
> >    linux="yes"
> >    linux_user="yes"
> >    kvm="yes"
> > -  QEMU_INCLUDES="-isystem ${source_path}/linux-headers
> -I$PWD/linux-headers $QEMU_INCLUDES"
> > +  QEMU_INCLUDES="-isystem ${source_path}/linux-headers
> -I${build_path}/linux-headers $QEMU_INCLUDES"
> >    libudev="yes"
> >  ;;
> >  esac
> > @@ -4259,7 +4269,7 @@ EOF
> >            fdt=git
> >            mkdir -p dtc
> >            fdt_cflags="-I${source_path}/dtc/libfdt"
> > -          fdt_ldflags="-L$PWD/dtc/libfdt"
> > +          fdt_ldflags="-L${build_path}/dtc/libfdt"
> >            fdt_libs="$fdt_libs"
> >        elif test "$fdt" = "yes" ; then
> >            # Not a git build & no libfdt found, prompt for system install
> > @@ -5244,7 +5254,7 @@ case "$capstone" in
> >      else
> >        LIBCAPSTONE=libcapstone.a
> >      fi
> > -    capstone_libs="-L$PWD/capstone -lcapstone"
> > +    capstone_libs="-L${build_path}/capstone -lcapstone"
> >      capstone_cflags="-I${source_path}/capstone/include"
> >      ;;
> >
> > @@ -6244,8 +6254,8 @@ case "$slirp" in
> >        git_submodules="${git_submodules} slirp"
> >      fi
> >      mkdir -p slirp
> > -    slirp_cflags="-I${source_path}/slirp/src -I$PWD/slirp/src"
> > -    slirp_libs="-L$PWD/slirp -lslirp"
> > +    slirp_cflags="-I${source_path}/slirp/src -I${build_path}/slirp/src"
> > +    slirp_libs="-L${build_path}/slirp -lslirp"
> >      if test "$mingw32" = "yes" ; then
> >        slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
> >      fi
> > @@ -8190,7 +8200,7 @@ fi
> >  mv $cross config-meson.cross
> >
> >  rm -rf meson-private meson-info meson-logs
> > -NINJA=${ninja:-$PWD/ninjatool} $meson setup \
> > +NINJA=${ninja:-${build_path}/ninjatool} $meson setup \
> >          --prefix "${pre_prefix}$prefix" \
> >          --libdir "${pre_prefix}$libdir" \
> >          --libexecdir "${pre_prefix}$libexecdir" \
> > @@ -8212,7 +8222,7 @@ NINJA=${ninja:-$PWD/ninjatool} $meson setup \
> >       -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg
> -Dvnc_png=$vnc_png \
> >       -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f\
> >          $cross_arg \
> > -        "$PWD" "$source_path"
> > +        "$build_path" "$source_path"
> >
> >  if test "$?" -ne 0 ; then
> >      error_exit "meson setup failed"
> >
>
>