cowasm: disable werror for now for dlopen detection:

otherwise generated:

| int
| main ()
| {
| return dlopen ();

wasm-ld: warning: function signature mismatch: dlopen
>>> defined as () -> i32 in /tmp/emscripten_temp_6nz4f0ww/conftest_0.o
>>> defined as (i32, i32) -> i32 in /home/builder/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten/libc.a(dynlink.o)
em++: error: running limited binaryen optimizations because DWARF info requested (or indirectly required) [-Wlimited-postlink-optimizations] [-Werror]

and erroneously claims that dlopen is not present, and
configure fails.

Change-Id: Ie54db7c2099787a0b63b76b0b6e3e44750c9046e
Signed-off-by: Michael Meeks <[email protected]>

wasm/README

@@ -50,7 +50,7 @@ Note that here the LO core (and builddir, if separate) must be mapped to the
 same directory in the container as it was when building core, due to files
 containing absolute paths.
 
-    podman run -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR:ro -v $ONLINEGITREPO:$ONLINEGITREPO:rw -v $ONLINEBUILDDIR:$ONLINEBUILDDIR:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $ONLINEBUILDDIR/ && $ONLINEGITREPO/autogen.sh && emconfigure $ONLINEGITREPO/configure --enable-static --with-lokit-path=$GITREPO/include --with-lo-path=$BUILDDIR/instdir --with-lo-builddir=$BUILDDIR --with-zstd-includes=/usr/local/include --with-zstd-libs=/usr/local/lib --with-poco-includes=/usr/local/include --with-poco-libs=/usr/local/lib --host=wasm32-local-emscripten"
+    podman run -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR:ro -v $ONLINEGITREPO:$ONLINEGITREPO:rw -v $ONLINEBUILDDIR:$ONLINEBUILDDIR:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $ONLINEBUILDDIR/ && $ONLINEGITREPO/autogen.sh && emconfigure $ONLINEGITREPO/configure --disable-werror --with-lokit-path=$GITREPO/include --with-lo-path=$BUILDDIR/instdir --with-lo-builddir=$BUILDDIR --with-zstd-includes=/usr/local/include --with-zstd-libs=/usr/local/lib --with-poco-includes=/usr/local/include --with-poco-libs=/usr/local/lib --host=wasm32-local-emscripten"
     podman run -v $GITREPO:$GITREPO:ro -v $BUILDDIR:$BUILDDIR:ro -v $ONLINEGITREPO:$ONLINEGITREPO:rw -v $ONLINEBUILDDIR:$ONLINEBUILDDIR:rw --security-opt=label=disable -ti public.ecr.aws/allotropia/libo-builders/wasm /bin/bash -c "source /home/builder/emsdk/emsdk_env.sh && cd $ONLINEBUILDDIR/ && emmake make -rj8"
 
 == Build Online dependencies manually ==