MantisBT - CMake
has an apparent match from $ENV{PATH}.
This also occurs if I specify the preference explicitly via
CMAKE_PREFIX_PATH: if the library is found in program path, it picks those up
for linkage instead of the specified preference.
In the folowing example, I happen to have only one of the libraries fftw3, fftw3f in my /local32/lib. So the FFTWDIR is set to pick up libraries as in FindFFTW.cmake:
CMakeLists.txt:
set(CMAKE_PREFIX_PATH ${FFTWDIR})
find_package(FFTW QUIET)
FindFFTW.cmake:
find_library(FFTW_LIBRARY NAMES fftw3)
message(STATUS " FFTW_LIBRARY: ${FFTW_LIBRARY}")
find_library(FFTWF_LIBRARY NAMES fftw3f)
message(STATUS " FFTWF_LIBRARY: ${FFTWF_LIBRARY}")
set(FFTW_LIBRARIES ${FFTW_LIBRARY} ${FFTWF_LIBRARY})
find_path(FFTW_INCLUDE_DIR NAMES fftw3.h)
result: CMakeCache.txt
//GDL: Specifiy the FFTW directory tree
FFTWDIR:PATH=D:/programs/win32libs
//Path to a library.
FFTWF_LIBRARY:FILEPATH=D:/programs/win32libs/lib/libfftw3f.a
//Path to a file.
FFTW_INCLUDE_DIR:PATH=E:/mingw/local32/include
//Path to a library.
FFTW_LIBRARY:FILEPATH=E:/mingw/local32/lib/libfftw3.a
SET(CMAKE_PREFIX_PATH "c:/proper/lib")
find_library(WRONG libname)
ingested, with my modified Platform/UnixPaths.cmake, into
CMAKE_SYSTEM_LIBRARY_PATH and into CMAKE_SYSTEM_INCLUDE_PATH.
<Platform/UnixPaths> inspecting LDFLAGS: -L/opt/local/lib -L/usr/local/lib
<Platform/UnixPaths> adding system library path: /opt/local/lib
<Platform/UnixPaths> adding system library path: /usr/local/lib
so according to the docs, CMAKE_SYSTEM_LIBRARY_PATH and CMAKE_SYSTEM_INCLUDE_PATH
will be utilized in find_library and in find_path, respectively. Instead I get
Junk from the mingw side bleeding into it because I have an application directory in %PATH%:
PLPLOT_LIBRARY: /cygdrive/d/programs/libplplotd.dll.a
FindPlplot> PLPLOT_LIBRARY_DIR: /cygdrive/d/programs
PLPLOT_INCLUDE=? /cygdrive/d/programs/../include
Found PLPLOT: /cygdrive/d/programs/libplplotd.dll.a;/cygdrive/d/programs/libplplotcxxd.dll.a
(errors due to bad linkage)
Looking for c_plslabelfunc in /cygdrive/d/programs/libplplotd.dll.a;/cygdrive/d/programs/libplplotcxxd.dll.a
Looking for c_plslabelfunc in /cygdrive/d/programs/libplplotd.dll.a;/cygdrive/d/programs/libplplotcxxd.dll.a - not found
Of course, I reset my $PATH for the cygwin to run right, but the find_library behavior is wrong.
cmakebug (4,078) 2014-09-06 15:26https://public.kitware.com/Bug/file/5245/cmakebug