lpsolve is not used here

Change-Id: I8264104e58e0c6ddb3bea2983754b43908be28be
Remove --disable-lpsolve configure option.

Use --with-lpsolver="coinmp" or --with-lpsolver="no".

Change-Id: Ibc806b85fb6c03e1cf6f23d860246a6fb2f273c1
add shlwapi

Change-Id: Icb7b7d9954a6954b2a34358a49988a10c3ab384a
Avoid duplicate symbols in libmerged for Windows too.

Export these symbols from sfx library.
For cases when we link together more libraries, there are more symbols,
so I've kept __attribute__((__weak__)) hack there.

Change-Id: I8b7f6fc9bea479dca5062344c04b74c1f3eb36b2