[Buildroot] CMake can't find Boost

[Buildroot] CMake can't find Boost

[Gareth Pye]

Hi,

I've had a lot trouble convincing cmake that boost is available. I'm 
trying to add the UHD drivers to buildroot. We need it to connect up the 
USR B200 to our Odroid C1s.

My uhd.mk looks like:

################################################################################
#
# UHD driver for USRP hardware (ettus research)
#
################################################################################

UHD_VERSION = 003_009_001
UHD_SOURCE = /release_$(UHD_VERSION).tar.gz
UHD_SITE = https://github.com/EttusResearch/uhd/archive
UHD_INSTALL_STAGING = YES
UHD_INSTALL_TARGET = YES

UHD_CONF_OPTS += -DENABLE_EXAMPLES=OFF
UHD_CONF_OPTS += -DENABLE_USB=ON
UHD_CONF_OPTS += -DENABLE_MANUAL=OFF
UHD_CONF_OPTS += -DENABLE_DOXYGEN=OFF
UHD_CONF_OPTS += -DENABLE_UTILS=OFF
UHD_CONF_OPTS += -DENABLE_TESTS=OFF

UHD_CONF_OPTS += 
-Dtarget_link_libraries=/data/Build/buildroot/output/target/usr/lib/

UHD_CONF_OPTS += -DBoost_INCLUDE_DIR=../../../../output/build/boost-1.60.0
UHD_CONF_OPTS += 
-DBoost_LIBRARY_DIR=../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
UHD_CONF_OPTS += -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=BOTH

UHD_DEPENDENCIES = libglib2 host-pkgconf python-mako libusb boost
UHD_SUBDIR = host
UHD_SUPPORTS_IN_SOURCE_BUILD = NO

define UHD_PRE_CONFIGURE_FIXUP
           cp -r output/target/usr/lib/python2.7/site-packages/mako 
output/host/usr/lib/python2.7/site-packages/
endef
UHD_PRE_CONFIGURE_HOOKS += UHD_PRE_CONFIGURE_FIXUP

$(eval $(cmake-package))

And an attempt at building it looks like (full paste at: 
http://pastebin.com/eQmf0YW8):

<snip>
-- Could NOT find Boost
CMake Warning (dev) at CMakeLists.txt:221 (LINK_DIRECTORIES):
   This command specifies the relative path

../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib

   as a link directory.

   Policy CMP0015 is not set: link_directories() treats paths relative 
to the
   source dir.  Run "cmake --help-policy CMP0015" for policy details.  
Use the
   cmake_policy command to set the policy and suppress this warning.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Boost include directories: ../../../../output/build/boost-1.60.0
-- Boost library directories: 
../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
-- Boost libraries:
-- Looking for log2
-- Looking for log2 - found
<snip>


The uhd.mk file is similar to what worked several months ago, but it 
appears I didn't event commit to my local repository correctly as trying 
to make that doesn't work either.

Should a cmake project using boost 'just work' & I should be complaining 
to the UHD guys or is there something I should be tweaking in buildroot?

[Buildroot] CMake can't find Boost

[gwenhael.goavec]

Hi,

On Thu, 28 Apr 2016 16:16:05 +1000
Gareth Pye <garethp@gpsatsys.com.au> wrote:

> Hi,
> 
> I've had a lot trouble convincing cmake that boost is available. I'm 
> trying to add the UHD drivers to buildroot. We need it to connect up
> the USR B200 to our Odroid C1s.
> 
> My uhd.mk looks like:
> 
> ################################################################################
> #
> # UHD driver for USRP hardware (ettus research)
> #
> ################################################################################
> 
> UHD_VERSION = 003_009_001
> UHD_SOURCE = /release_$(UHD_VERSION).tar.gz
> UHD_SITE = https://github.com/EttusResearch/uhd/archive
> UHD_INSTALL_STAGING = YES
> UHD_INSTALL_TARGET = YES
> 
> UHD_CONF_OPTS += -DENABLE_EXAMPLES=OFF
> UHD_CONF_OPTS += -DENABLE_USB=ON
> UHD_CONF_OPTS += -DENABLE_MANUAL=OFF
> UHD_CONF_OPTS += -DENABLE_DOXYGEN=OFF
> UHD_CONF_OPTS += -DENABLE_UTILS=OFF
> UHD_CONF_OPTS += -DENABLE_TESTS=OFF
> 
> UHD_CONF_OPTS += 
> -Dtarget_link_libraries=/data/Build/buildroot/output/target/usr/lib/
> 
> UHD_CONF_OPTS +=
> -DBoost_INCLUDE_DIR=../../../../output/build/boost-1.60.0
> UHD_CONF_OPTS +=
> -DBoost_LIBRARY_DIR=../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
> UHD_CONF_OPTS += -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=BOTH
> 
> UHD_DEPENDENCIES = libglib2 host-pkgconf python-mako libusb boost
> UHD_SUBDIR = host
> UHD_SUPPORTS_IN_SOURCE_BUILD = NO
> 
> define UHD_PRE_CONFIGURE_FIXUP
>            cp -r output/target/usr/lib/python2.7/site-packages/mako 
> output/host/usr/lib/python2.7/site-packages/
> endef
> UHD_PRE_CONFIGURE_HOOKS += UHD_PRE_CONFIGURE_FIXUP
It's not a good thing to hard code everything. UHD is able to
work not only on ARM. But it not the current subject.
> 
> $(eval $(cmake-package))
> 
> And an attempt at building it looks like (full paste at: 
> http://pastebin.com/eQmf0YW8):
> 
> <snip>
> -- Could NOT find Boost
I think you must check if all needs boot's modules are available.
For example host/CMakeLists.txt checks for these boost's modules :
date_time, filesystem, program_options, regex, system, thread,
unit_test_framework, serialization.


> CMake Warning (dev) at CMakeLists.txt:221 (LINK_DIRECTORIES):
>    This command specifies the relative path
> 
> ../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
> 
>    as a link directory.
> 
>    Policy CMP0015 is not set: link_directories() treats paths
> relative to the
>    source dir.  Run "cmake --help-policy CMP0015" for policy
> details. Use the
>    cmake_policy command to set the policy and suppress this warning.
> This warning is for project developers.  Use -Wno-dev to suppress it.
> 
> -- Boost include directories: ../../../../output/build/boost-1.60.0
> -- Boost library directories: 
> ../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
> -- Boost libraries:
> -- Looking for log2
> -- Looking for log2 - found
> <snip>
> 
> 
> The uhd.mk file is similar to what worked several months ago, but it 
> appears I didn't event commit to my local repository correctly as
> trying to make that doesn't work either.
> 
> Should a cmake project using boost 'just work' & I should be
> complaining to the UHD guys or is there something I should be
> tweaking in buildroot?
> 
In my experience boost works with cmake. It's used successfully to
build, for example, gnuradio and gr-osmosdr.

Regard.
Gwen

[Buildroot] CMake can't find Boost

[Samuel Martin]

Hi,

On Thu, Apr 28, 2016 at 9:18 AM, gwenhael.goavec <gwenj@trabucayre.com> wrote:
> Hi,
>
> On Thu, 28 Apr 2016 16:16:05 +1000
> Gareth Pye <garethp@gpsatsys.com.au> wrote:
>
>> Hi,
>>
>> I've had a lot trouble convincing cmake that boost is available. I'm
>> trying to add the UHD drivers to buildroot. We need it to connect up
>> the USR B200 to our Odroid C1s.
>>
>> My uhd.mk looks like:
>>
>> ################################################################################
>> #
>> # UHD driver for USRP hardware (ettus research)
>> #
>> ################################################################################
>>
>> UHD_VERSION = 003_009_001
>> UHD_SOURCE = /release_$(UHD_VERSION).tar.gz
>> UHD_SITE = https://github.com/EttusResearch/uhd/archive
>> UHD_INSTALL_STAGING = YES
>> UHD_INSTALL_TARGET = YES
>>
>> UHD_CONF_OPTS += -DENABLE_EXAMPLES=OFF
>> UHD_CONF_OPTS += -DENABLE_USB=ON
>> UHD_CONF_OPTS += -DENABLE_MANUAL=OFF
>> UHD_CONF_OPTS += -DENABLE_DOXYGEN=OFF
>> UHD_CONF_OPTS += -DENABLE_UTILS=OFF
>> UHD_CONF_OPTS += -DENABLE_TESTS=OFF
>>
>> UHD_CONF_OPTS +=
>> -Dtarget_link_libraries=/data/Build/buildroot/output/target/usr/lib/
target_link_libraries is a CMake  builtin function [1], so AFAIK it
cannot be override like this.
Anyway, this is not needed; the cmake-package infrastructure [2] (via
CMAKE_TOOLCHAIN_FILE) should take care of setting this kind of stuff
for you.

>>
>> UHD_CONF_OPTS +=
>> -DBoost_INCLUDE_DIR=../../../../output/build/boost-1.60.0
This is not needed, CMake comes with a FindBoost.cmake module, which
should work as expected [3] (as mention by Gwen).
Also, pointing to the build directory is usually a bad practice; there
is absolutely no warranty that the layout where the headers and libs
are matches the installation layout.

>> UHD_CONF_OPTS +=
>> -DBoost_LIBRARY_DIR=../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
>> UHD_CONF_OPTS += -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=BOTH
As said before the infra takes care of this.

>>
>> UHD_DEPENDENCIES = libglib2 host-pkgconf python-mako libusb boost
>> UHD_SUBDIR = host
>> UHD_SUPPORTS_IN_SOURCE_BUILD = NO
>>
>> define UHD_PRE_CONFIGURE_FIXUP
>>            cp -r output/target/usr/lib/python2.7/site-packages/mako
>> output/host/usr/lib/python2.7/site-packages/
>> endef
hmm! This fixup looks dubious!
If python-mako is needed, then you should wonder:
- is it needed only for the target (e.g. only at runtime)?
- is it needed at buildtime (i.e. by the UHD build-system itself)?
then host-python-mako must be added to the dependency list.


>> UHD_PRE_CONFIGURE_HOOKS += UHD_PRE_CONFIGURE_FIXUP
> It's not a good thing to hard code everything. UHD is able to
> work not only on ARM. But it not the current subject.
>>
>> $(eval $(cmake-package))
>>
>> And an attempt at building it looks like (full paste at:
>> http://pastebin.com/eQmf0YW8):
>>
>> <snip>
>> -- Could NOT find Boost
> I think you must check if all needs boot's modules are available.
> For example host/CMakeLists.txt checks for these boost's modules :
> date_time, filesystem, program_options, regex, system, thread,
> unit_test_framework, serialization.

As already said, make sure boost components listed in [4] are selected
in the Config.in file.

>
>
>> CMake Warning (dev) at CMakeLists.txt:221 (LINK_DIRECTORIES):
>>    This command specifies the relative path
>>
>> ../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
>>https://cmake.org/cmake/help/v3.5/module/FindBoost.html
>>    as a link directory.
>>
>>    Policy CMP0015 is not set: link_directories() treats paths
>> relative to the
>>    source dir.  Run "cmake --help-policy CMP0015" for policy
>> details. Use the
>>    cmake_policy command to set the policy and suppress this warning.
>> This warning is for project developers.  Use -Wno-dev to suppress it.
>>
>> -- Boost include directories: ../../../../output/build/boost-1.60.0
>> -- Boost library directories:
>> ../../../../output/host/usr/arm-buildroot-linux-gnueabihf/sysroot/usr/lib
>> -- Boost libraries:
>> -- Looking for log2
>> -- Looking for log2 - found
>> <snip>
>>
>>
>> The uhd.mk file is similar to what worked several months ago, but it
>> appears I didn't event commit to my local repository correctly as
>> trying to make that doesn't work either.
>>
>> Should a cmake project using boost 'just work' & I should be
>> complaining to the UHD guys or is there something I should be
>> tweaking in buildroot?
So far, boost with cmake projects just work.
Hint: check all required boost components are selected in your config.

>>
> In my experience boost works with cmake. It's used successfully to
> build, for example, gnuradio and gr-osmosdr.
>
> Regard.
> Gwen
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

[1] https://cmake.org/cmake/help/v3.5/command/target_link_libraries.html
[2] http://nightly.buildroot.org/#_infrastructure_for_cmake_based_packages
[3] https://cmake.org/cmake/help/v3.5/module/FindBoost.html
[4] https://github.com/EttusResearch/uhd/blob/master/host/CMakeLists.txt#L235


Regards,

-- 
Samuel