src/jnienv.cpp: support G size suffix
fix MacOS/iOS openjdk-src build regression
Merge pull request #301 from pcarrier/pierre/gsize

src/jnienv.cpp: support G size suffix
Merge pull request #303 from dicej/darwin-openjdk-src

fix MacOS/iOS openjdk-src build regression
fix MacOS/iOS openjdk-src build regression (part 2)
Merge pull request #304 from dicej/darwin-openjdk-src

fix MacOS/iOS openjdk-src build regression (part 2)