I try to install it using the command below: CFLAGS="" CXXFLAGS="" emerge =games-action/bzflag-2.4.2 and in the build I see this: /bin/sh ../../libtool --silent --tag=CXX --silent --mode=link x86_64-pc-linux-gnu-g++ -Wall -W -Wundef -Wshadow -ansi -pedantic -mtune=k8 -fsigned-char -fexpensive-optimizations -module -avoid-version -shared -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -o thiefControl.la -rpath /usr/games/lib64 thiefControl_la-thiefControl.lo -lm -lpthread The last stable version (2.4.0) doesn't have this problem, so, this is a regresion.
Should be fixed now. Thanks for report