[Plplot-devel] cmake, python, and operator stupidity, was Re: 5.8.0 Release?

[Geoffrey F. <fu...@li...>]

Geoffrey Furnish writes:
 > So, question: Can anyone help me understnad how
 > bindings/python/CMakeFiles/_plplotcmodule.dir/relink.txt is generated, and
 > suggest how I might fix it's generation to not name the unnecessary and
 > trouble-causing "-lpython2.5"?

I got as far as:

% svn diff bindings/python/CMakeLists.txt
Index: bindings/python/CMakeLists.txt
===================================================================
--- bindings/python/CMakeLists.txt      (revision 8002)
+++ bindings/python/CMakeLists.txt      (working copy)
@@ -61,7 +61,8 @@
 
 add_library(plplot_widgetmodule MODULE plplot_widgetmodule.c)
 set_target_properties(plplot_widgetmodule PROPERTIES PREFIX "")
-target_link_libraries(plplot_widgetmodule plplot${LIB_TAG} ${PYTHON_LIBRARIES})
+#target_link_libraries(plplot_widgetmodule plplot${LIB_TAG} ${PYTHON_LIBRARIES})
+target_link_libraries(plplot_widgetmodule plplot${LIB_TAG})
 if(USE_RPATH)
   set_target_properties(
   plplot_widgetmodule

which allows me to complete the compilation of PLplot when cmake'd (what do
people say now instead of configured?) against a prefix containing a custom
python build.  So that's progres..

But now, make install fails:

Install the project...
-- Install configuration: ""
CMake Error: Error in cmake code at
.../plplot/tmp2/cmake_install.cmake:35:
FILE cannot create directory: /share/doc/plplot. Maybe need administrative privi
leges.
Current CMake stack: /home/furnish/icfdev/prefix-icf/plplot/tmp2/cmake_install.c
make
make: *** [install] Error 255

Studying cmake_install.cmake, I find within:

FILE(INSTALL DESTINATION "/share/doc/plplot" TYPE FILE FILES "/my/prefix-build/zone/plplot/AUTHORS")
FILE(INSTALL DESTINATION "/share/doc/plplot" TYPE FILE FILES "/my/prefix-build/zone/plplot/COPYING.LIB")
FILE(INSTALL DESTINATION "/share/doc/plplot" TYPE FILE FILES "/my/prefix-build/zone/plplot/ChangeLog")

Which makes it seem a little like it's trying to write directly to /sahre,
which also seems to be the obvious meaning of the error quoted above: "FILE
cannot create directory: /share/doc/plplot. ..."

Any ideas why it isn't trying to stuff stuff into $PREFIX/share/...?

So far I'm not seeing where cmake_install.cmake comes from, or how this stuff
got into it.  It's a generated file, right?  But where's the source?  Is
anyone else seeign this behavior?  Is there some operator stupidity involved
here on my part? 

BTW, when I gnerated the above cmake configuraiton diff, it didn't take
effect when I merely removed the cache and reran cmake.  I had to run cmake
fresh in an empty build dir, to get the .../relink.txt file to be
regenerated.  Is there a way to get cmake to actually regenerate all it's
stuff in your current working dir, or do other developers normally have to
start a new build dir from scratch to test changes to the cmake configuration
files?