+#-----#
+# CPU #
+#-----#
+CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 ssse3 sse4_1 sse4_2 popcnt"
+
+#-------------------------------------------------------------------#
+# LTO #
+# #
+# Source: https://wiki.gentoo.org/wiki/LTO#Enabling_LTO_System-wide #
+#-------------------------------------------------------------------#
+WARNING_FLAGS="-Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing"
+LTO_FLAGS="-flto ${WARNING_FLAGS}"
+USE="${USE} lto"
+
+#-------------------#
+# Compilation flags #
+#-------------------#
+COMMON_FLAGS="-march=x86-64-v3 -O2 -pipe ${LTO_FLAGS}"
+RUSTFLAGS="-C target-cpu=x86-64"
+
+CFLAGS="${COMMON_FLAGS}"
+CXXFLAGS="${COMMON_FLAGS}"
+FCFLAGS="${COMMON_FLAGS}"
+FFLAGS="${COMMON_FLAGS}"
+
+#--------#
+# Gentoo #
+#--------#
+USE="${USE} dist-kernel bindist"
+
+#----------#
+# Security #
+#----------#
+USE="${USE} caps filecaps acl -suid -skey"
+
+#---------------#
+# Optimizations #
+#---------------#
+USE="${USE} orc"
+
+#-------------#
+# Video cards #
+#-------------#
+VIDEO_CARDS="fbdev amdgpu radeon radeonsi zink"
+
+#---------------#
+# Input Devices #
+#---------------#
+INPUT_DEVICES="evdev libinput"
+
+#--------------#
+# Localization #
+#--------------#
+L10N=""
+
+#----------#
+# Licenses #
+#----------#
+ACCEPT_LICENSE="-* @FREE @BINARY-REDISTRIBUTABLE"