Inital Commit - on Clang+LTO

env/compiler-clang

@@ -0,0 +1,8 @@
+CC="clang"
+CXX="clang++"
+CFLAGS="${CFLAGS} -flto=thin"
+CXXFLAGS="${CXXFLAGS} -flto=thin"
+LDFLAGS="-Wl,-O2 -Wl,--as-needed -fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind"
+AR="llvm-ar"
+NM="llvm-nm"
+RANLIB="llvm-ranlib"

env/compiler-gcc

@@ -0,0 +1,7 @@
+CC="gcc"
+CXX="g++"
+CFLAGS="-march=native -O2 -pipe"
+CXXFLAGS="${CFLAGS}"
+AR="ar"
+NM="nm"
+RANLIB="ranlib"

env/compiler-gcc-lto

@@ -0,0 +1,8 @@
+CC="gcc"
+CXX="g++"
+CFLAGS="-flto=16 -march=native -O2 -pipe"
+CXXFLAGS="${CFLAGS}"
+LDFLAGS="-Wl,-O2 -Wl,--as-needed"
+AR="gcc-ar"
+NM="gcc-nm"
+RANLIB="gcc-ranlib"

env/notmpfs.conf

@@ -0,0 +1 @@
+PORTAGE_TMPDIR="/var/tmp/notmpfs"