[gimp/wip/Jehan/meson-windows-official] build: no need to build the reference API for the Windows build.

[Jehan <jehanp src gnome org>]

commit ca178e4a2c250f09ff7e598289566d0cc21a76cf
Author: Jehan <jehan girinstud io>
Date:   Thu Mar 31 00:21:45 2022 +0200

    build: no need to build the reference API for the Windows build.
    
    It looks like the gi-docgen build is broken on Windows (though the CI
    does show neither stdout nor stderr output, just a failure without
    message). This should be fixed, but it's not necessary for the installer
    at least.
    
    Note: on autotools, the gi-docgen step works fine on Windows.

 build/windows/gitlab-ci/build-gimp-msys2.sh | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/build/windows/gitlab-ci/build-gimp-msys2.sh b/build/windows/gitlab-ci/build-gimp-msys2.sh
index 38d320cb31..a063154bda 100644
--- a/build/windows/gitlab-ci/build-gimp-msys2.sh
+++ b/build/windows/gitlab-ci/build-gimp-msys2.sh
@@ -106,6 +106,7 @@ meson .. -Dprefix="${GIMP_PREFIX}"           \
          -Ddirectx-sdk-dir="${MSYS2_PREFIX}" \
          -Djavascript=false                  \
          -Dbuild-id=org.gimp.GIMP_official   \
+         -Dgi-docgen=disabled                \
          ${GIMP_OPTIONS}
 ninja
 ninja install