tce-load -i perl5 gperf libwebp-dev icu-dev libxml2-dev gtk3-dev gtk3-gir gobject-introspection-dev libsoup-gnome-dev libsecret-dev libxslt gst-plugins-base-dev gst-plugins-base-gir ruby-dev gtk2-dev coreutils intltool libsoup-gnome-gir

cd webkitgtk-2.0.4

sed -i '/generate-gtkdoc --rebase/s:^:# :' GNUmakefile.in

sed -i "/%union/i %lex-param {YYLEX_PARAM}" Source/ThirdParty/ANGLE/src/compiler/glslang.y

make fails with i486 ***

CFLAGS="-march=i686 -Os -pipe" CXXFLAGS="-march=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --enable-shared --libexecdir=/usr/local/lib/webkitgtk3 --enable-introspection --disable-geolocation --disable-webkit1 --enable-web-audio

sudo ln -s /tmp/tcloop/gcc/usr/local/bin/gcc /usr/bin/gcc

find . -name GNUmakefile -type f -exec sed -i 's/-O2/ /g' {} \;
find . -name GNUmakefile -type f -exec sed -i 's/-O3/ /g' {} \;

make -j5 52m 33.96s no j 2h 1m 43s
sudo make install


checking for gpg-error-config... /usr/local/bin/gpg-error-config
checking for GPG Error - version >= 1.11... yes (1.11)
configure: WARNING:
***
*** The config script /usr/local/bin/gpg-error-config was
*** built for i686-pc-linux-gnu and thus may not match the
*** used host i486-pc-linux-gnu.
*** You may want to use the configure option --with-gpg-error-prefix
*** to specify a matching config script.
***
checking for libgcrypt-config... /usr/local/bin/libgcrypt-config
checking for LIBGCRYPT - version >= 1.4.0... yes (1.5.2)
checking LIBGCRYPT API version... okay
configure: WARNING:
***
*** The config script /usr/local/bin/libgcrypt-config was
*** built for i686-pc-linux-gnu and thus may not match the
*** used host i486-pc-linux-gnu.
*** You may want to use the configure option --with-libgcrypt-prefix
*** to specify a matching config script.
***

$ grep "O2" /usr/src/webkitgtk-2.0.4/GNUmakefile
CFLAGS = -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti -std=c99 -O2
CXXFLAGS = -march=i486 -mtune=i686 -Os -pipe -Wno-c++11-compat -O2

make V=1
...
libtool: compile:  g++ -DHAVE_CONFIG_H -I. -Wall -W -Wcast-align -Wchar-subscripts -Wreturn-type -Wformat -Wformat-security -Wno-format-y2k -Wundef -Wmissing-format-attribute -Wpointer-arith -Wwrite-strings -Wno-unused-parameter -Wno-parentheses -fno-exceptions -DBUILDING_CAIRO__ -DBUILDING_GTK__ -DBUILDING_WEBKIT2__ -I./Source -I./Source/WTF -I./Source/WTF/wtf -fno-rtti -fstrict-aliasing -O3 -pthread -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include -D_REENTRANT -I/usr/local/include -march=i486 -mtune=i686 -Os -pipe -Wno-c++11-compat -O2 -MT Source/WTF/wtf/libWTF_la-ArrayBuffer.lo -MD -MP -MF Source/WTF/wtf/.deps/libWTF_la-ArrayBuffer.Tpo -c Source/WTF/wtf/ArrayBuffer.cpp  -fPIC -DPIC -o Source/WTF/wtf/.libs/libWTF_la-ArrayBuffer.o


WebKit was configured with the following options:

Build configuration:
 Enable debugging (slow)                                  : no
 Compile with debug symbols (slow)                        : no
 Enable GCC build optimization                            : yes
 Code coverage support                                    : no
 Optimized memory allocator                               : yes
 Accelerated rendering backend                            : opengl (gl, glx)

Features:
=======
 WebKit1 support                                          : no
 WebKit2 support                                          : yes
 Accelerated Compositing                                  : yes
 Gamepad support                                          : no
 Geolocation support                                      : no
 HTML5 video element support                              : yes
 JIT compilation                                          : autodetect
 Opcode stats                                             : no
 SVG fonts support                                        : yes
 SVG support                                              : yes
 Spellcheck support                                       : no
 Credential storage support                               : yes
 Web Audio support                                        : yes
 WebGL                                                    : yes
 XSLT support                                             : yes


GTK+ configuration:
 GTK+ version                                             : 3.0
 GDK target                                               : x11
 Introspection support                                    : yes
 Generate documentation                                   : no