[gimp/wip/Jehan/native-win64-build] XDG_DATA_DIRS with no defaults.

[Jehan <jehanp src gnome org>]

commit 85c88b73e428e1a2715d26fb5588ffc6df6053f2
Author: Jehan <jehan girinstud io>
Date:   Sun May 2 19:59:23 2021 +0200

    XDG_DATA_DIRS with no defaults.

 build/windows/build-msys2.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/build/windows/build-msys2.sh b/build/windows/build-msys2.sh
index 24236bc7be..59cfb17058 100644
--- a/build/windows/build-msys2.sh
+++ b/build/windows/build-msys2.sh
@@ -54,7 +54,7 @@ export PKG_CONFIG_PATH="${GIMP_PREFIX}/lib/pkgconfig:$PKG_CONFIG_PATH"
 export PKG_CONFIG_PATH="${GIMP_PREFIX}/share/pkgconfig:$PKG_CONFIG_PATH"
 export LD_LIBRARY_PATH="${GIMP_PREFIX}/lib:${LD_LIBRARY_PATH}"
 export ACLOCAL_FLAGS="-I/c/msys64/mingw64/share/aclocal"
-export XDG_DATA_DIRS="$XDG_DATA_DIRS:${GIMP_PREFIX}/share:/mingw64/share/"
+export XDG_DATA_DIRS="${GIMP_PREFIX}/share:/mingw64/share/"
 
 git clone --depth=${GIT_DEPTH} https://gitlab.gnome.org/GNOME/babl.git _babl
 git clone --depth=${GIT_DEPTH} https://gitlab.gnome.org/GNOME/gegl.git _gegl