On 2016-01-28 19:58+0100 Pau Garcia i Quiles wrote:
Unfortunately ExternalProject does not work well with find_package, e. g.
this fill fail:
CMakeLists.txt
|
\--- 3rdparty/CMakeLists.txt
\--- server/CMakeLists.txt
Where:
3rdparty/CMakeLists.txt contains ExternalProject_Add(QtZeroConf ...)
and
server/CMakeLists.txt contains find_package(QtZeroConf)
Hi Pau:
Your experience is contrary to mine. For example, in my epa_build
project (where I build all the many prerequisites of PLplot) I build a lot of
different libraries (such as Qt5 and the GTK+ stack of libraries) using
ExternalProject_Add, and I don't experience any difficulties using
find_package to find the installed results.
I assume find_package should work well with ExternalProject_Add for
you as well so long as (a) all your ExternalProject(s) are configured
to do both a build and install (not just a build), and (b) you are
being careful in server/CMakeLists.txt to set PATH,
CMAKE_LIBRARY_PATH, CMAKE_INCLUDE_PATH, and PKG_CONFIG_PATH
consistently with the install prefix used for the ExternalProject(s).
By the way, some versions of CMake-3.x.y have been plagued by
substantial find issues, and your bad experience with find_package
might be related to those issues. However, I haven't experienced any
major find issues with CMake-3.3.2 so you might want to shift to that
version if you aren't using it already.
Alan
__________________________
Alan W. Irwin
Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).
Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
__________________________
Linux-powered Science
__________________________
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