tce-load -i compiletc Xorg-7.7-dev libjpeg-turbo-dev

wget https://github.com/fltk/fltk/releases/download/release-1.4.1/fltk-1.4.1-source.tar.bz2

cd fltk-1.4.1

CC="gcc -flto -march=i486 -mtune=i686 -Os -pipe -Wl,-T/usr/local/lib/ldscripts/elf_i386.xbn" CXX="g++ -flto -march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti -DNDEBUG -Wl,-T/usr/local/lib/ldscripts/elf_i386.xbn" ./configure --prefix=/usr/local --enable-shared --localstatedir=/var --disable-gl --disable-xinerama --disable-xft --disable-xfixes --disable-xcursor --disable-xrender --disable-print --disable-wayland --disable-test

make [2m 47.85s]
sudo make install

Configuration Summary
-------------------------------------------------------------------------
    Directories: prefix=/usr/local
                 bindir=${exec_prefix}/bin
                 datadir=${datarootdir}
                 datarootdir=${prefix}/share
                 exec_prefix=${prefix}
                 includedir=${prefix}/include
                 libdir=${exec_prefix}/lib
                 mandir=${datarootdir}/man
    Build fluid: YES
    Build tests: NO
Cross-compiling: NO
       Graphics: X11
Image Libraries: JPEG=System
                 PNG=System
                 ZLIB=System
Forms library:   YES
    Large Files: YES
         OpenGL: NO
        Threads: YES
   Allow std:: : NO

configure:3701: checking whether the C compiler works
configure:3723: gcc -flto -march=i486 -mtune=i686 -Os -pipe  -Wl,-T/usr/local/lib/ldscripts/elf_i386.xbn conftest.c -Wl,-T/usr/local/lib/ldscripts/elf_i386.xbn >&5
/usr/local/bin/ld: error: linker script file '/usr/local/lib/ldscripts/elf_i386.xbn' appears multiple times


762,980   libfltk.so.1.3
21,940    libfltk_forms.so.1.3
43,416    libfltk_images.so.1.3

lto
---
1,117,160 libfltk.so.1.4
22,008    libfltk_forms.so.1.4
158,496   libfltk_images.so.1.4

25,604    fltk-options
648,760   fluid

ldscripts + lto
---------------
1,110,224 libfltk.so.1.4
17,704    libfltk_forms.so.1.4
150,220   libfltk_images.so.1.4

17,604    fltk-options
645,784   fluid

ldscripts
---------
1,141,824 libfltk.so.1.4
17,892    libfltk_forms.so.1.4
151,608   libfltk_images.so.1.4

18,212    fltk-options
674,972   fluid