This flag is already in use, see https://salsa.debian.org/science-team/gmsh/-/
blob/master/debian/rules#L34
Hello everyone,
the ENABLE_SYSTEM_CONTRIB=1 seems not to be sufficient.
The build log shows this line:
-- Found Eigen
With this include given to c++:
-I/home/benutzer/source/libgmsh4/try2/gmsh-4.7.1+ds1/contrib/eigen
But in CMakeLists.txt we find these lines:
if(ENABLE_SYSTEM_CONTRIB)
find_path(EIGEN_INC "Eigen/Dense" HINTS eigen3)
if(EIGEN_INC)
include_directories(${EIGEN_INC})
set_config_option(HAVE_EIGEN "Eigen[system]")
endif()
endif()
if(NOT HAVE_EIGEN)
include_directories(contrib/eigen)
set_config_option(HAVE_EIGEN "Eigen")
endif()
Therefore it seems if it is not found in the system
and therefore it falls back to contrib.
Adding following to debian/rules:
-DEIGEN_INC:STRING="/usr/include/eigen3"
Would show this with an attempt to dpkg-buildpackage:
-- Found Eigen[system]
With this include given to c++:
-I/usr/include/eigen3
If its not desired to give the path directly maybe somehow retrieved by:
$ pkg-config --cflags eigen3
-I/usr/include/eigen3
But I built a package with that change, but the error remained.
So I rebuilt also dolfinx and saw that it gives to c++ this parameter:
"-DEIGEN_MAX_ALIGN_BYTES=32"
This define might change EIGEN_DEFAULT_ALIGN_BYTES,
and this controls how allocation is done inside
aligned_malloc/aligned_free.
Shouldn't either both have to override the default here
or both stay to the default?
Kind regards,
Bernhard
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