Attached is a patch for the Makefile. The first difference is that
the clean target wasn't working for me. "rm *.{o,d}" wasn't removing
the files, so I changed it to "rm *.o *.d".
I also made a couple of changes that will reduce the overhead of the
build process. Unlike a shell script, a Makefile works by textual
substitution. So, a line like
GTK_INCLUDES = `gtk-config --cflags gtk gthread`
doesn't execute gtk-config but simply puts that whole string in a
variable. When this variable is expanded in a shell command (when gcc
is run) _then_ the shell creates the subshell to run gtk-config in.
This means that gtk-config is run once for every file that is
compiled. I changed this to instead run the script in a subshell once
and use the result repeatedly.
The other change restricts the Makefile to work only with GNU make
(but since 'gcc' and 'g++' are explicitly used I don't think this is a
problem). The change is the ":=" operator. As stated above, make
operates on textual substitution. Thus lines like :
VAR=value
VAR2=${VAR}
VAR2 gets the value "${VAR}". ${VAR} isn't expanded until ${VAR2} is
expanded. Then it is expanded every time ${VAR2} is expanded. The
":=" operator expands the string immediately and binds that result to
VAR2. This reduces the number of lookups and expansions that make has
to do.
For a project as small as vpython is right now these changes are
likely to be insignificant.
The final change I made was to make PYTHON_INCLUDES work for my
system. (I don't expect that to be included in cvs, but I don't want
to butcher the patch so that it doesn't work :-)) I thought there was
a way to override this in the environment without changing the
Makefile, but it didn't work when/how I tried it.
HAND,
-D
PS. Is there a -dev list? I didn't see one.
--
Pleasant words are a honeycomb,
sweet to the soul and healing to the bones.
Proverbs 16:24
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