Don't use -Wdocumentation flag when building gdal

Avoids an LLVM crash introduced by upgrading Emscripten to 3.1.47.

See upstream issue llvm/llvm-project#68524 for details.

Author: georgestagg

libs/recipes/gdal/rules.mk

@@ -39,6 +39,7 @@ $(GDAL_WASM_LIB): $(GDAL_TARBALL) $(PROJ_WASM_LIB) $(GEOS_WASM_LIB)
 	    -DGDAL_ENABLE_DRIVER_HDF5=OFF \
 	    -DGDAL_USE_HDF4=OFF \
 	    -DGDAL_USE_HDF5=OFF \
+	    -DHAVE_WFLAG_DOCUMENTATION_AND_NO_DEPRECATED=OFF \
 	    .. && \
 	  sed -i.bak 's/#define ICONV_CPP_CONST const/#define ICONV_CPP_CONST/' port/cpl_config.h && \
 	  emmake make install && \