gentoo-overlay/profiles/default/linux/make.defaults

# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
#
# System-wide defaults for the Portage system
# See portage(5) manpage
#
# Please avoid enabling things by default in here if possible. Understand any 
# implications with core packages.  For example, if "java" is in USE and db 
# has a conditional dependency on java (which it does,) then a JDK will be 
# pulled in during *emerge system*!


# Default starting set of USE flags for all default/linux profiles.
USE="berkdb crypt ipv6 ncurses nls pam readline ssl tcpd zlib"

# make sure toolchain has sane defaults <tooclhain@gentoo.org>
USE="${USE} fortran openmp"

# Security ftw.
USE="${USE} seccomp"

# Ole Markus With <olemarkus@gentoo.org> (2010-10-21)
# These USE flags were originally inserted here because of PHP
# and were later removed by me. Reinserting the USE flags again because they are
# global USE flags that may be expected to be set by other packages.
USE="${USE} cli pcre"

# Donnie Berkholz <dberkholz@gentoo.org> (2006-03-07)
# Modular X: Support direct rendering by default
# Andreas K. Huettel <dilfridge@gentoo.org> (2013-01-21)
# Re-added following discussion with chithead
USE="${USE} dri"

# Luca Barbato <lu_zero@gentoo.org> (2006-10-28)
# on glibc system you cannot turn it off
USE="${USE} iconv"

# Matt Turner <mattst88@gentoo.org> (2017-01-17)
# Sane defaults for input drivers
INPUT_DEVICES="libinput"

# Donnie Berkholz <dberkholz@gentoo.org> (2006-08-18)
# Lowest common denominator defaults for video drivers,
# except hppa, which lacks v4l so removes it in the hppa profile
VIDEO_CARDS="dummy fbdev v4l"

# Doug Goldstein <cardoe@gentoo.org> (2008-07-09)
# Adding LDFLAGS="-Wl,-O1 for all Linux profiles by default
# after discussion on the gentoo-dev ML. As we bang out a clear
# direction with how LDFLAGS will be set by default, this entry
# may move.
# Samuli Suominen <ssuominen@gentoo.org> (2010-07-12)
# Note that adding LDFLAGS="-Wl,-O1 ${LDFLAGS}" breaks dev-util/boost-build
# because of whitespace.
LDFLAGS="-Wl,-O1 -Wl,--as-needed"