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cmake: use NO_MODULE for Eigen3

This commit is contained in:
Richard Berger 2018-09-10 00:35:55 -04:00
parent 3b073de357
commit 46b87518b8
1 changed files with 2 additions and 8 deletions
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10
cmake/CMakeLists.txt
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@ -538,13 +538,6 @@ if(PKG_USER-NETCDF)
endif()
if(PKG_USER-SMD)
# hack alert!
# something defines the Eigen3_DIR variable, but it has no effect
# yet shows up in the TUI/GUI display as "not found".
# and due to not being marked as advanced, it can mislead people
# as the EIGEN3_INCLUDE_DIR variable which does have an effect
# is marked as advanced. Tested on Fedora28 with Eigen3-3.3.5 rpm.
mark_as_advanced(Eigen3_DIR)
option(DOWNLOAD_EIGEN3 "Download Eigen3 (instead of using the system's one)" OFF)
if(DOWNLOAD_EIGEN3)
include(ExternalProject)
@ -557,7 +550,8 @@ if(PKG_USER-SMD)
set(EIGEN3_INCLUDE_DIR ${SOURCE_DIR})
list(APPEND LAMMPS_DEPS Eigen3_build)
else()
find_package(Eigen3)
find_package(Eigen3 NO_MODULE)
mark_as_advanced(Eigen3_DIR)
if(NOT EIGEN3_FOUND)
message(FATAL_ERROR "Eigen3 not found, help CMake to find it by setting EIGEN3_INCLUDE_DIR, or set DOWNLOAD_EIGEN3=ON to download it")
endif()