tce-load -i xorg-proto libXau libXdmcp python

cd libxcb-1.11.1

sed -i "s/pthread-stubs//" configure

CC="gcc -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --disable-static --localstatedir=/var --sysconfdir=/etc --enable-xinput --without-doxygen

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

make
make install

  Package: libxcb 1.11.1

  Configuration
    XDM support.........: yes
    sendmsg fd passing..: yes
    Build unit tests....: no
      with html results.: no
    XCB buffer size.....: 16384

  X11 extensions
    Composite...........: yes
    Damage..............: yes
    Dpms................: yes
    Dri2................: yes
    Dri3................: yes
    Glx.................: yes
    Randr...............: yes
    Record..............: yes
    Render..............: yes
    Resource............: yes
    Screensaver.........: yes
    selinux.............: no
    Shape...............: yes
    Shm.................: yes
    Sync................: yes
    Xevie...............: yes
    Xfixes..............: yes
    Xfree86-dri.........: yes
    xinerama............: yes
    xinput..............: yes
    xkb.................: yes
    xprint..............: yes
    xtest...............: yes
    xv..................: yes
    xvmc................: yes

  Used CFLAGS:
    CPPFLAGS............: 
    CFLAGS..............: -g -O2
    Warning CFLAGS......:  -Wall -Wpointer-arith -Wmissing-declarations -Wformat=2 -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wbad-function-cast -Wold-style-definition -Wdeclaration-after-statement -Wunused -Wuninitialized -Wshadow -Wmissing-noreturn -Wmissing-format-attribute -Wredundant-decls -Wlogical-op -Werror=implicit -Werror=nonnull -Werror=init-self -Werror=main -Werror=missing-braces -Werror=sequence-point -Werror=return-type -Werror=trigraphs -Werror=array-bounds -Werror=write-strings -Werror=address -Werror=int-to-pointer-cast -Werror=pointer-to-int-cast

  Installation:
    Prefix..............: /usr/local