First step^H^H^H^Hfailures with PCL

[David Serrano]

I've finally begun with this C++ "tongue" (note for english speakers: in spanish we use the same word for both "tongue" and "language" ). This is going to be a nightmare for everybody: me as a novice C++ coder and you unwary supporters . Well, these are my problems and suggestions:


a) Compiling is somewhat painful:

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$ cp -a /usr/lib/pixinsight/source/modules/processes/Geometry .  ## copy tree to my working directory
$ cd Geometry/Release
$ make
[ blah blah, compilation successful ]
$ rm libGeometry-pm32.so
$ make
make: Nothing to be done for `ChannelMatchInstance.d'.

Erm, no, of course there's nothing to be done for that file, but there's another missing file and I want it back!

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$ rm ChannelMatchInstance.d
$ make
make: Nothing to be done for `ChannelMatchInterface.d'.

Hmm... so do I have to 'make clean' everytime and rebuild the entire module, just to find that I forgot that typical semicolon (Murphy will take care of that) and have to rebuild again? (side note: I use vim for coding, so guess what I think of those fancy IDEs ).


b) Wasn't able to "reduce" or "strip" the module. I edited subdir.mk and removed all references to source files except for ChannelMatch*.*. Compiled and tried to load the module in PixInsight (after disabling the original Geometry-pm32.so) but the application doesn't find it. I guess that the module lacks some hooks and thus the application refuses to load it.


c) When loading a module in PixInsight, I have to type the path to my working directory every time I launch the "Install modules" dialog. It would be nice that the application remembered this, and the state of the "Recursive" checkbox too. My working directory doesn't appear in the drop-down after searching.


d) Anyway, just inserted a comment in ChannelMatchInstance.cpp. Compilation successful, but when I try to load it, PixInsight throws an "Unknown exception" (by running xmessage) and then "Module initialization failed: Exit code: 1" (in a PixInsight dialog).


My general impression about this is that my javascript evenings are by far more productive than this ;^).

[David Serrano]

d) Anyway, just inserted a comment in ChannelMatchInstance.cpp. Compilation successful, but when I try to load it, PixInsight throws an "Unknown exception" (by running xmessage) and then "Module initialization failed: Exit code: 1" (in a PixInsight dialog).

Forget it, this first battle is won 8).

[Carlos Milovic]

As I said to you throught msnm... Wellcome to the Jungle

[David Serrano]

a) Compiling is somewhat painful:

Another battle won . Removed the following parameters:

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-MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@:%.o=%.d)"

and the $(CPP_DEPS) definition from the file subdir.mk. Now all those *.d files are not generated, and make behaves as I expect:

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$ make PCLDIR=/usr/lib/pixinsight
[ blah blah, compilation successful ]

$ touch ../CropProcess.cpp    ## simulate the edition of one file
$ time make PCLDIR=/usr/lib/pixinsight
Building file: ../CropProcess.cpp
Invoking: GCC C++ Compiler
g++[ blah blah ]
Finished building: ../CropProcess.cpp
 
Building target: libGeometry-pm32.so
Invoking: GCC C++ Linker
g++[ blah blah ]
Finished building target: libGeometry-pm32.so
 
real: 2.060, user: 1.848, sys: 0.204
$ _

Done, module rebuilt in 2 seconds .

b) Wasn't able to "reduce" or "strip" the module.

No longer necessary. I only tried this in order to reduce the compilation time.

So, the only outstanding issue is this:

c) [...] It would be nice that the application remembered this, and the state of the "Recursive" checkbox too.