As several current LTS distributions currently ship with CMake
< 3.12.0, add a work-around for CMake Issue 16967.
Otherwise we get:
CMake Error at
/usr/share/cmake-3.7/Modules/CheckCXXSourceCompiles.cmake:64 (try_compile):
Unknown extension ".cxx" for file
/tmp/rtl-sdr/build/CMakeFiles/CMakeTmp/src.cxx
try_compile() works only for enabled languages. Currently these are:
C
New minimum version is CMake 3.7.2.
This patch has been rebased to incorporate changes that happened
since the creation of the original patch.
Original Author: A. Maitland Bottoms <bottoms@debian.org>, 07 Sep 2018
Although we added a detection mechanism for the presence of the Kernel
bug earlier, reading from the incorrectly mapped memory might cause a
bus error on some ARM systems.
With the overall performance benefit being rather minimal for the
data rates of rtl-sdr, disable zero-copy by default.
Since this feature also disconnects running instances
of librtlsdr that claimed the device, it is now disabled
by default and can only be enabled at compile time.
To enable it when building with cmake:
cmake . -DDETACH_KERNEL_DRIVER=ON
To enable it when building with automake:
./configure --enable-driver-detach
Signed-off-by: Steve Markgraf <steve@steve-m.de>
Another possibility is to use the GrPlatform.cmake module.
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
Signed-off-by: Steve Markgraf <steve@steve-m.de>
For cmake call with -DINSTALL_UDEV_RULES=ON for the rules to be
installed during the default install/uninstall stages.
For autotools call "make install-udev-rules" or "make uninstall-udev-
The rules file will be installed to "/etc/udev/rules.d".
