Well summary says it. Tested only with version 1.2. # emerge --info |grep CXXFLAGS CXXFLAGS="-O2 -march=x86-64 -mtune=core2 -pipe" # cat /usr/bin/mpicxx |grep core2 WRAPPER_CXXFLAGS="-O2 -march=x86-64 -mtune=core2 -pipe" # mpicxx -compile_info x86_64-pc-linux-gnu-g++ -O2 -march=x86-64 -mtune=core2 -pipe -Wl,-O1 -I/usr/include -L/usr/lib64 -L/usr/lib64 -Wl,-rpath -Wl,/usr/lib64 -lmpichcxx -lmpich -lopa -lpthread
+ 03 Mar 2010; Justin Bronder <jsbronder@gentoo.org> + +mpich2-1.2.1_p1.ebuild: + Bump and fix #293665