Hi folks,
I've run into a minor issue with CMake when a particular file:
(a) is a generated file (property explicitly set to GENERATED, or
marked as the output of a custom command),
(b) has a non-canonical path set (e.g. the path includes '.' or or an
empty directory component, such as '/usr//local/./bin/'), and
(c) is depended upon by another file
If these conditions are met, CMake seems unable to recognize that the
dependency file is to be produced during the build, and then tries
(and fails) to find it in the filesystem.
Here is an example of the error produced:
CMake Error: can not find file /Users/zpincus/Documents/Research/
Theriot Lab/Development/ITK Wrapping/EWP-bin/
wrap_BufferConversionPython.cxx
Tried .c .C .c++ .cc .cpp .cxx .m .M .mm .h .h+
+ .hm .hpp .hxx .in .txx
CMake Error: CMake failed to properly look up cmSourceFile: /Users/
zpincus/Documents/Research/Theriot Lab/Development/ITK
Wrapping/EWP-bin/./wrap_BufferConversionPython.cxx
When I modified the CMakeLists file so that the '.' would not be
added to the path, the error went away. This is sort of a hackish
thing to have to do in general when you want paths which have
optional inner components (e.g. CMAKE_CONFIG_INTDIR or whatnot to
optionally have multiple binary directories like 'bin/Release' and
'bin/RelWithDebInfo' or sometimes just 'bin' if CMAKE_CONFIG_INTDIR
is empty).
If it would help, I could try to write a test case illustrating this
issue.
Zach Pincus
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