The following issue has been SUBMITTED.
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https://public.kitware.com/Bug/view.php?id=15786
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Reported By: Kerstin Keller
Assigned To:
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Project: CMake
Issue ID: 15786
Category: Modules
Reproducibility: always
Severity: minor
Priority: normal
Status: new
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Date Submitted: 2015-10-13 07:32 EDT
Last Modified: 2015-10-13 07:32 EDT
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Summary: FindMatlab / matlab_add_mex does not work with
64-bit Matlab Version - Version detected as 32-bit Matlab
Description:
I have installed a 64bit Matlab Version (2015a) and CMake 3.3.2.
When writing a simple CMakeLists.txt script
cmake_minimum_required(VERSION 3.3)
project(easy_example)
find_package(MATLAB REQUIRED)
include_directories(Matlab_INCLUDE_DIRS)
matlab_add_mex(
NAME easy_example
SRC easy_example.cpp
)
It cannot find the mex library. The Output is
-- Could NOT find Matlab (missing: Matlab_MEX_LIBRARY) (found version "8.5")
CMake Error: The following variables are used in this project, but they are set
to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake
files:
Matlab_MEX_LIBRARY
linked by target "easy_example" in directory
D:/SourceCode/Matlab/easy_example
-- Configuring incomplete, errors occurred!
Steps to Reproduce:
Try to run
find_package(MATLAB REQUIRED)
and then use
matlab_add_mex(
...
)
with a 64-bit Matlab Version.
Additional Information:
Digging a little into the FindMatlab.cmake script, and outputted the directories
where it searches for the directories (l.1342).
message(STATUS "The include dir ${MATLAB_INCLUDE_DIR_TO_LOOK}")
message(STATUS "The library dir ${_matlab_lib_dir_for_search}")
This gives me the following Output
-- The include dir C:/LegacyApp/Matlab15a/R2015a_64bit/extern/include
-- The library dir
C:/LegacyApp/Matlab15a/R2015a_64bit/extern/lib/win32/microsoft
However, as my Matlab Version is 64bit, it library dir should be
C:/LegacyApp/Matlab15a/R2015a_64bit/extern/lib/win64/microsoft
This can be traced back to line 1276, where I added another message Output:
if(_matlab_64Build)
set(_matlab_current_suffix ${_matlab_bin_suffix_64bits})
message(STATUS "64bit Matlab")
else()
set(_matlab_current_suffix ${_matlab_bin_suffix_32bits})
message(STATUS "32bit Matlab")
endif()
CMake falsely detects a 32bit Matlab Version
-- 32bit Matlab
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Issue History
Date Modified Username Field Change
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2015-10-13 07:32 Kerstin Keller New Issue
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