RFR(S): JDK-8073175, 8073174: Fix native warnings in libjli and libfdlibm

(PING) Hi Everyone, It's my $0.02 to the warning cleanup work. Please review: http://cr.openjdk.java.net/~dsamersoff/JDK-8073175/webrev.01 http://cr.openjdk.java.net/~dsamersoff/JDK-8073174/webrev.01 Notes: 1. There are two common ways to cast pointer to int: intptr_t (perfectly safe, more-or-less portable) and size_t (perfectly portable, more-or-less safe) Use intptr_t everywhere but it costs explicit #ifdef __WINDOWS__ in splashscreen_stubs.c 2. I didn't fix "format not a string literal" warnings. It requires to set per-compiler pragmas. -Dmitry -- Dmitry Samersoff Oracle Java development team, Saint Petersburg, Russia * I would love to change the world, but they won't give me the sources.