# Set to blank instead of inheriting from profile
CFLAGS=""

# Automatically optimize for my hardware. Doesn't get sse 4.1, though.
GCC_4_3_CFLAGS="-march=native"
#GCC_4_3_CFLAGS="-march=core2"
GCC_3_CFLAGS="-march=nocona"

# http://www.linuxhardware.org/article.php?story=07/11/15/2015212
# Linux Hardware: Will GCC do vectorization internally or is this 
# something the developer will have to code manually?
# H. J.: “You only need to add -ftree-vectorize -msse4.1.”
# Jan: “There is -ftree-vectorize for automatic vectorization and SSE 
# intrinsics for writing SSE code by hand.
GCC_4_3_CFLAGS="${GCC_4_3_CFLAGS} -ftree-vectorize"

# LH: Will there be a "penryn" -march option in GCC or will people need 
# to specify -msse4 manually?
# H. J.: “There is no penryn -march switch since penryn isn't a product 
# name. You should use -msse4.1. BTW, -msse4 means -msse4.1 -msse4.2. 
# You should use -msse4.1 for Penryn class processors since they only 
# support SSE4.1.”
GCC_4_3_CFLAGS="${GCC_4_3_CFLAGS} -msse4.1"

# Perform tail duplication to enlarge superblock size. This 
# transformation simplifies the control flow of the function, allowing 
# other optimizations to do better job.
CFLAGS="${CFLAGS} -ftracer"

# Constructs webs as commonly used for register allocation purposes and 
# assign each web individual pseudo register.  This allows the register 
# allocation pass to operate on pseudos directly, but also strengthens 
# several other optimization passes, such as CSE, loop optimizer and 
# trivial dead code remover.  It can, however, make debugging 
# impossible, since variables will no longer stay in a "home register".
#CFLAGS="${CFLAGS} -fweb"

# Similar problem with debugging when using this
#CFLAGS="${CFLAGS} -frename-registers"

# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28684. Aids vectorization 
# of floating-point calculations, which almost always reorders them. 
# Could possibly break some code that can't handle reordering. Changed 
# to -freciprocal-math only because -fassociative-math requires other 
# flags that break IEEE.
GCC_4_3_CFLAGS="${GCC_4_3_CFLAGS} -funsafe-math-optimizations"

# Testing some more flags, mostly related to vectorization. 
# http://www.redhat.com/magazine/011sep05/features/gcc/ has some info
# -ftree-loop-linear has caused ICE in ccp4 at least.
# src/refmac5_/cell_symm_subrs.f
GCC_4_3_CFLAGS="${GCC_4_3_CFLAGS} -fivopts -fmodulo-sched 
-minline-stringops-dynamically -ftree-loop-im -funswitch-loops -fvect-cost-model 
-fvariable-expansion-in-unroller"

# Basic optimizations
CFLAGS="${CFLAGS} -O2 -pipe -g -w"

# Hardening
#CFLAGS="${CFLAGS} -DFORTIFY_SOURCE=2 -fstack-protector"

# Final setup
CFLAGS="${CFLAGS} ${GCC_4_3_CFLAGS}"
#CFLAGS="${CFLAGS} ${GCC_3_CFLAGS}"

# Experimental parallel implementations of many algorithms
# http://gcc.gnu.org/onlinedocs/libstdc++/manual/parallel_mode.html
#GCC_4_3_CXXFLAGS="${GCC_4_3_CXXFLAGS} -D_GLIBCXX_PARALLEL -fopenmp"

CXXFLAGS="${CFLAGS} ${GCC_4_3_CXXFLAGS}"

FFLAGS="${CFLAGS}"
# WARNING: Changing your CHOST is not something that should be done lightly.
# Please consult http://www.gentoo.org/doc/en/change-chost.xml before changing.
CHOST="x86_64-pc-linux-gnu"

# Use short hash chains rather than small hash table size.
# See http://lwn.net/Articles/192082/
# Only link in needed symbols. See http://www.gentoo.org/proj/en/qa/asneeded.xml
LDFLAGS="-Wl,-O1 -Wl,--as-needed"

# These are the USE flags that were used in addition to what is provided by the
# profile used for building.
USE="mmx sse sse2 ipw4965 webdav emacs bash-completion threads curl xft gzip-el sqlite -acl -nls avahi laptop sasl sidebar smtp smime gpgme imap offensive multiuser glep gd plugins network-cron glitz bzip2 zeroconf ppds glib xinerama autoipd galago fontconfig xosd hdaps aac ffmpeg -arts pulseaudio asyncns bluetooth usb mmap speex wavpack flac musepack libsamplerate sndfile fftw modplug justify xulrunner java mdnsresponder-compat lapack libnotify networkmanager pch djvu gs graphviz lzo guile a52 imlib ieee1394 xvid x264 theora network pda custom-cflags kdtree gphoto2 -scanner umfpack cblas ccache nsplugin xcb branding nautilus networking wifi adns snmp lm_sensors elf diskio smux sensord ruby deskbar gsf applet keyring disk-partition xine imagemagick mng real xvmc device-mapper syslog swat winbind async automount caps soup t1lib -dvi nfs fuse cdda chm ole wmf gedit epiphany daap ipod musicbrainz tagwriting v4l -beagle sound kde sqlite3 odbc xcomposite xscreensaver tunepimp captury zip vnc sms yahoo winpopup inotify hyperestraier gmp icu libwww -ldap -kerberos consolekit gconf qemu policykit kqemu smp exif gtkhtml -samba mysql postgres bcmath suhosin json mysqli fastbuild ftp gd-external pdo apache2 discard-path cgi force-cgi-redirect ctype sharedext posix tidy tokenizer xmlrpc soap sockets hash inifile flatfile simplexml sysvipc xmlreader xmlwriter xsl pcntl mhash filter iodbc -concurrentmodphp -sharedmem smi cpusets server sftp cvs subversion blas pymol pbs nodrm gnuplot pymacs wxwindows plotutils latex lynxkeymap cddb cdio cdparanoia color-console cpudetection dv live openal rtc radio ssse3 mmxext dc1394 rtsp id3tag shout stream taglib twolame upnp v4l2 pnm enca srt amrwb amrnb mp2 sdl-image vlm xanim threadsafe acct java6 log4j avalon-logkit -tracker audit client-only startup-notification mozdevelop postscript jabber inkjar dia gnome-print libssh2 ntp lzma gnome-keyring libburn totem kdrive webdav-serf -webdav-neon -ipv6 dynamic -dmx inquisitio glsa portage qa visibility pygrub screen hvm pae utils mpqc openbabel gamess -x86emu git gimp expat gcdmaster -gnutls ntfs reiserfs dbtool flash svgz moonlight apbs httpd shaders additions tetex science publishers jadetex graphics lyx kpathsea gsl pango xslt libvirt -gcj mopac7 fbcon -ads -libedit kvm dhcp tftp mono -mktemp ssh twisted swig -libffi kdeenablefinal"

MAKEOPTS="--jobs --load-average=8 --silent"
#MAKEOPTS="--jobs --load-average=8"
ACCEPT_KEYWORDS="~amd64"
#GENTOO_MIRRORS="http://supernova/"

#CCACHE_DIR="/var/tmp/portage/.ccache"
CCACHE_SIZE="4G"
CLEAN_DELAY="2"

FEATURES="-autoaddcvs cvs ccache fixpackages
	parallel-fetch splitdebug
	userfetch userpriv usersandbox"
PORT_LOGDIR="/var/log/portage"

PORTAGE_GPG_DIR="/home/donnie/.gnupg"
PORTAGE_GPG_KEY="B4B5AEDB"
FEATURES="${FEATURES} sign"

INPUT_DEVICES="mouse keyboard"
VIDEO_CARDS="i810 intel"

PORTDIR_OVERLAY="/usr/local/portage/overlay"
#PORTDIR_OVERLAY="/usr/local/portage/overlay /home/donnie/src/gentoo-x86"

#SYNC="rsync://rsync.us.gentoo.org/gentoo-portage"

# Don't warn me every time I emerge stuff about eclasses in overlays
PORTAGE_ECLASS_WARNING_ENABLE="0"

LINGUAS="en en_US"

EMERGE_DEFAULT_OPTS="--jobs 4 --load-average 8 --keep-going"

source /usr/local/portage/layman/make.conf