Compiling the EMC2 simulator on an old Red Hat 8 Box.

I wanted to have an emc simulator running on my old rh8 box. As everything was out of date, I had to compile more than 25 packages, and there was many pitfalls to avoid.

Here are the lessons learned.

Shared libraries

The biggest problem comes from the shared libraries.

When you compile a package, it is usually installed in /usr/local with its libraries in /usr/local/lib. But at runtime, the libraries are often loaded from other directories. And as there are older packages lying around, the wrong one is always picked up :(. So ldd is your friend.

For each shared library installed in /usr/local/lib, check it with ldd. for example:
$ ldd libXft.so libfontconfig.so.1 => /usr/local/lib/libfontconfig.so.1 (0x4001f000) libfreetype.so.6 => /usr/local/lib/libfreetype.so.6 (0x40053000) libXrender.so.1 => /usr/local/lib/libXrender.so.1 (0x400ba000) libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x400c2000) libc.so.6 => /lib/i686/libc.so.6 (0x42000000) libexpat.so.0 => /usr/lib/libexpat.so.0 (0x401a0000) libz.so.1 => /usr/lib/libz.so.1 (0x401c0000) libdl.so.2 => /lib/libdl.so.2 (0x401cf000) /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x80000000)

There, libXft.so uses the original libexpat.so lib, but a new libXrender.so

The classical symptom of using a wrong library is some undefined symbols...

Do not forget to edit /etc/ld.so.conf; especially add to it "/usr/local/lib".

Run ldconfig each time you install a package. As it is very easy to forget that, I put it in a makefile. But as ldconfig requires root privileges, I have put it setuid: "# chmod +s /sbin/ldconfig". Beware of security implications...

Old versions

You will need to remove old packages that go in your way. I found that creating a directory "old" in "/usr/include", "/usr/lib" and "/usr/bin", and moving the offending files in it was convenient. This allows, if you made a mistake, ro revert back your changes. Don't forget to ldconfig...

Packages versions and order of compilation

Many packages are dependant upon some package having a certain version. This is mostly trial and error...

Also, if you recompile a package, you must usually recompile all the other ones depending upon it. This can be rather lengthy.

Compilation steps

Create a directory "gtk" and download the following in it (Google is your friend...):

MesaDemos-7.0.1.tar.gz
MesaGLUT-7.0.1.tar.gz
MesaLib-7.0.1.tar.gz
atk-1.9.1.tar.bz2
cairo-1.2.6.tar.gz
fontconfig-2.4.2.tar.gz
freetype-2.3.5.tar.gz
gettext-0.16.tar.gz
glib-2.12.13.tar.gz
gtk+-2.10.13.tar.gz
jpegsrc.v6b.tar.gz
libXft-2.1.12.tar.gz
libXrender-0.9.4.tar.gz
libiconv-1.11.tar.gz
libpng-1.2.8.tar.bz2
pango-1.16.4.tar.gz
pkg-config-0.21.tar.gz
poppler-0.5.9.tar.gz
renderproto-0.9.3.tar.gz
tiff-3.7.4.tar.gz
xproto-7.0.11.tar.gz

Uncompress and untar all.

Create the following Makefile

all: gtk.ok

PKG=pkg-config-0.21

pkg.ok:
	cd $(PKG); make uninstall
	cd $(PKG); make distclean
	cd $(PKG); ./configure --enable-shared --enable-static
	cd $(PKG); make
	cd $(PKG); make install
	/sbin/ldconfig
	touch pkg.ok

LIBICONV=libiconv-1.11

libiconv.ok: pkg.ok
	cd $(LIBICONV); make uninstall
	cd $(LIBICONV); make distclean
	cd $(LIBICONV); ./configure --enable-shared --enable-static
	cd $(LIBICONV); make
	cd $(LIBICONV); make install
	/sbin/ldconfig
	touch libiconv.ok

GETTEXT=gettext-0.16

gettext.ok : libiconv.ok pkg.ok
	cd $(GETTEXT); make uninstall
	cd $(GETTEXT); make distclean
	cd $(GETTEXT); ./configure --enable-shared --enable-static
	cd $(GETTEXT); make
	cd $(GETTEXT); make install
	/sbin/ldconfig
	touch gettext.ok

XPROTO=xproto-7.0.11

xproto.ok: pkg.ok
	cd $(XPROTO); make uninstall
	cd $(XPROTO); make distclean
	cd $(XPROTO); ./configure --enable-shared --enable-static
	cd $(XPROTO); make
	cd $(XPROTO); make install
	/sbin/ldconfig
	touch xproto.ok

RENDERPROTO=renderproto-0.9.3

renderproto.ok: pkg.ok
	cd $(RENDERPROTO); make uninstall
	cd $(RENDERPROTO); make distclean
	cd $(RENDERPROTO); ./configure --enable-shared --enable-static
	cd $(RENDERPROTO); make
	cd $(RENDERPROTO); make install
	/sbin/ldconfig
	touch renderproto.ok

XRENDER=libXrender-0.9.4

xrender.ok: pkg.ok renderproto.ok libiconv.ok
	cd $(XRENDER); make uninstall
	cd $(XRENDER); make distclean
	cd $(XRENDER); ./configure --enable-shared --enable-static
	cd $(XRENDER); make
	cd $(XRENDER); make install
	/sbin/ldconfig
	touch xrender.ok

FREETYPE=freetype-2.3.5

freetype.ok: pkg.ok libiconv.ok
	cd $(FREETYPE); make uninstall
	cd $(FREETYPE); make distclean
	cd $(FREETYPE); ./configure --enable-shared --enable-static
	cd $(FREETYPE); make
	cd $(FREETYPE); make install
	/sbin/ldconfig
	touch freetype.ok

LIBXFT=libXft-2.1.12

libxft.ok: pkg.ok xproto.ok libiconv.ok freetype.ok
	cd $(LIBXFT); make uninstall
	cd $(LIBXFT); make distclean
	cd $(LIBXFT); ./configure --enable-shared --enable-static
	cd $(LIBXFT); make
	cd $(LIBXFT); make install
	/sbin/ldconfig
	touch libxft.ok

FONTCONFIG=fontconfig-2.4.2

fontconfig.ok: pkg.ok libiconv.ok freetype.ok
	cd $(FONTCONFIG); make uninstall
	cd $(FONTCONFIG); make distclean
	cd $(FONTCONFIG); ./configure --enable-shared --enable-static
	cd $(FONTCONFIG); make
	cd $(FONTCONFIG); make install
	/sbin/ldconfig
	touch fontconfig.ok

MESA=Mesa-7.0.1

mesa.ok: pkg.ok libiconv.ok xrender.ok libxft.ok
	cd $(MESA); make realclean
	cd $(MESA); make linux-x86
	cd $(MESA); make install
	/sbin/ldconfig
	touch mesa.ok

PNG=libpng-1.2.8

libpng.ok: pkg.ok libiconv.ok
	cd $(PNG); make clean
	cd $(PNG); cp scripts/makefile.linux Makefile
	cd $(PNG); make
	cd $(PNG); make install
	/sbin/ldconfig
	touch png.ok

JPEG=jpeg-6b

jpeg.ok: pkg.ok libiconv.ok
	cd $(JPEG); make distclean
	cd $(JPEG); ./configure --enable-shared --enable-static
	cd $(JPEG); make
	cd $(JPEG); make install
	/sbin/ldconfig
	touch jpeg.ok

TIFF=tiff-3.7.4

tiff.ok: pkg.ok libiconv.ok jpeg.ok
	cd $(TIFF); make uninstall
	cd $(TIFF); make distclean
	cd $(TIFF); ./configure --enable-shared --enable-static
	cd $(TIFF); make
	cd $(TIFF); make install
	/sbin/ldconfig
	touch tiff.ok

GLIB=glib-2.12.13

glib.ok: pkg.ok libiconv.ok
	cd $(GLIB); make uninstall
	cd $(GLIB); make distclean
	cd $(GLIB); ./configure --enable-shared --enable-static --with-libiconv=gnu
	cd $(GLIB); make
	cd $(GLIB); make install
	/sbin/ldconfig
	touch glib.ok

CAIRO=cairo-1.2.6

cairo.ok: pkg.ok libiconv.ok glib.ok png.ok jpeg.ok tiff.ok mesa.ok
	cd $(CAIRO); make uninstall
	cd $(CAIRO); make distclean
	cd $(CAIRO); ./configure --enable-shared --enable-static
	cd $(CAIRO); make
	cd $(CAIRO); make install
	/sbin/ldconfig
	touch cairo.ok

POPPLER=poppler-0.5.9

poppler.ok: pkg.ok libiconv.ok cairo.ok fontconfig.ok
	cd $(POPPLER); make uninstall
	cd $(POPPLER); make distclean
	cd $(POPPLER); ./configure --enable-shared --enable-static --enable-cairo-output
	cd $(POPPLER); make
	cd $(POPPLER); make install
	/sbin/ldconfig
	touch poppler.ok

PANGO=pango-1.16.4

pango.ok: pkg.ok libiconv.ok cairo.ok poppler.ok fontconfig.ok
	cd $(PANGO); make uninstall
	cd $(PANGO); make distclean
	cd $(PANGO); ./configure --enable-shared --enable-static
	cd $(PANGO); make
	cd $(PANGO); make install
	/sbin/ldconfig
	touch pango.ok

ATK=atk-1.9.1

atk.ok: pkg.ok libiconv.ok cairo.ok pango.ok
	cd $(ATK); make uninstall
	cd $(ATK); make distclean
	cd $(ATK); ./configure --enable-shared --enable-static
	cd $(ATK); make
	cd $(ATK); make install
	/sbin/ldconfig
	touch atk.ok

GTK=gtk+-2.10.13

gtk.ok: pkg.ok libiconv.ok atk.ok
	cd $(GTK); make uninstall
	cd $(GTK); make distclean
	cd $(GTK); ./configure --enable-shared --enable-static
	cd $(GTK); make
	cd $(GTK); make install
	/sbin/ldconfig
	touch gtk.ok

The first time, build each package by hand in the order of the Makefile.

For each package, do a configure..., make, make install, ldconfig, and check that the generated libraries use the packages installed before, and not the old ones!

I had also to create by hand "/usr/local/lib/pkgconfig/x11.pc":

prefix=/usr/X11R6
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

xthreadlib=

Name: X11
Description: X Library
Version: 0.0
Requires:
Requires.private:
Cflags: -I${includedir}
Libs: -L${libdir} -lX11
Libs.private:

to keep pkgconfig and configure happy.

When all of that is done, you will have a working GTK package.

Create another directory named "emc" and get the following:

BWidget-1.8.0.tar.gz
Python-2.4.4.tgz
tcl8.4.15-src.tar.gz
tk8.4.15-src.tar.gz

Then create the following "Makefile":

all: emc.ok

TCL=tcl8.4.15/unix
tcl.ok:
	cd $(TCL); make distclean
	cd $(TCL); ./configure --enable-shared --enable-static
	cd $(TCL); make
	cd $(TCL); make install
	/sbin/ldconfig
	touch tcl.ok

TK=tk8.4.15/unix
tk.ok: tcl.ok
	cd $(TK); make distclean
	cd $(TK); ./configure --enable-shared --enable-static
	cd $(TK); make
	cd $(TK); make install
	/sbin/ldconfig
	touch tk.ok

PYTHON=Python-2.4.4
python.ok: tcl.ok tk.ok ../sources/gtk/gtk.ok
	cd $(PYTHON); make distclean
	cd $(PYTHON); ./configure --enable-shared --enable-static
	cd $(PYTHON); make
	cd $(PYTHON); make install
	/sbin/ldconfig
	touch python.ok

EMC=emc2.1/src
emc.ok: python.ok
	cd $(EMC); make clean
	cd $(EMC); ./configure --enable-simulator --enable-run-in-place --with-python=/usr/local/bin/python2.4 --with-tclConfig=/usr/local/lib/tclConfig.sh --with-tkConfig=/usr/local/lib/tkConfig.sh
	cd $(EMC); make
	/sbin/ldconfig
	touch emc.ok

and proceed as before up to the point where you have a working python 2.4

if all went well, goto <tt>emc2.1/src, and start it:

 $  ../scripts/emc ../configs/sim/axis.ini

Good luck :)

Redhat8Install

Compiling the EMC2 simulator on an old Red Hat 8 Box.

Shared libraries

Old versions

Packages versions and order of compilation

Compilation steps