Кръстосаната компилация на CMake е неуспешна по време на етапа на свързване на хоста (целта е Raspberry Pi)

Моето изходно дърво е

cpp
├── bin
├── CMakeLists.txt
├── src
├── headers
├── Makefile
├── TestConfig.h
├── TestConfig.h.in
├── README.txt
├── third_party
├── x_build
└── xtoolchain.cmake

Използвам crosstool-ng.

Редактиране: Допълнителна информация (която може да помогне на други): Използвах препратка към http://xecdesign.com/qemu-emulating-raspberry-pi-the-easy-way/ за зареждане на RPI чрез QEMU (важно преоразмеряване на img файла до 8 GB).

qemu-img resize 2014-01-07-wheezy-raspbian.img +6G
sudo fdisk /dev/mmcblk0
- use "parted" or 'd' options to delete the 2nd partition and then recreate it but with a larger size. (don't worry, the data will remain). 1st partition is vfat.
- reboot to activate the partition changes.
- use "sudo resize2fs /dev/mmclk0p2" (or /dev/sda2 if symlink set in udev rules) to enlarge the root file system.
- use e2fsck -f /dev/mmcblk0p2 to perform a file system check.

Инсталира всички lib<package>-dev и други библиотеки с помощта на apt-get. След това изключете QEMU

mkdir -p /tmp/rasp
sudo mount /home/test/raspberrypi/2014-01-07-wheezy-raspbian.img /tmp/rasp/ -o offset=$((122880*512))
cd $HOME/raspberrypi
sudo cp -ar /tmp/rasp ./rootfs
sudo chown -R $USER:$USER rootfs/home/pi
cd $HOME/raspberrypi/rootfs 

# also small hack around: error "Never use <bits/predefs.h> directly; include <stdc-predef.h> instead."
sudo cp /home/test/raspberrypi/rootfs/usr/include/features.h /home/test/raspberrypi/rootfs/usr/include/features.h-
sudo cp /home/test/local/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sysroot/usr/include/features.h /home/test/raspberrypi/rootfs/usr/include
    sudo umount /tmp/rasp

Също така съм настроил целевата файлова система /home/test/raspberrypi/rootfs (Това съдържа всички библиотеки, необходими за кръстосана компилация, които вече са инсталирани)

Xtoolchain.cmake изглежда по следния начин

# ========================= CROSS COMPILATION INITIALIZATION BEGIN =======================
# this one is important
SET(CMAKE_SYSTEM_NAME Linux)
#this one not so much
SET(CMAKE_SYSTEM_VERSION 1)

# specify the cross compiler
SET(CMAKE_C_COMPILER
$ENV{HOME}/local/x-tools/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc)
SET(CMAKE_CXX_COMPILER
$ENV{HOME}/local/x-tools/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-g++)

# where is the target environment
#SET(CMAKE_FIND_ROOT_PATH
#/home/test/local/x-tools/arm-unknown-linux-gnueabi /home/test/raspberrypi/rootfs)

SET(CMAKE_FIND_ROOT_PATH $ENV{HOME}/raspberrypi/rootfs)


# search for programs in the build host directories
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# for libraries and headers in the target directories
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

#include_directories ("/home/test/local/raspidev/include")
# ========================= CROSS COMPILATION INITIALIZATION END =========================

Частта CMakeLists.txt (това е в допълнение към CMakeLists.txt в родителската директория, както можете да видите от файловата структура) в директорията src изглежда така

cmake_minimum_required(VERSION 2.8)
...
...
...
#Change 1 to 0 to disable logging
add_definitions(-DENABLE_LOG=1)

set(CMAKE_PREFIX_PATH $ENV{HOME}/raspberrypi/rootfs/)
set(CMAKE_LIBRARY_PATH $ENV{HOME}/raspberrypi/rootfs/lib:$ENV{HOME}/raspberrypi/rootfs/usr/lib:$ENV{HOME}/raspberrypi/rootfs/usr/local/lib)
set(CMAKE_MODULE_PATH $ENV{HOME}/raspberrypi/rootfs/usr/share/cmake-2.8/Modules)

#rdynamic is for stack unwinding on crash
set(CMAKE_CXX_FLAGS "-W -O3 -g -Wall -std=c++0x -rdynamic -D_AIBTRACE ${CMAKE_CXX_FLAGS}")

set_target_properties(${TARGET} PROPERTIES COMPILE_FLAGS ${CMAKE_CXX_FLAGS})

include_directories ("${PROJECT_SOURCE_DIR}/headers")
#add_subdirectory (headers)
...
...
...
# ======================== SQLITE3 =================================

pkg_check_modules(SQLITE3 REQUIRED sqlite3)
include_directories(${SQLITE3_INCLUDE_DIRS})
...
...  (...And other libraries)

Правя компилация извън кода в директорията x_build. както следва cmake -DCMAKE_TOOLCHAIN_FILE=/home/test/xcompile/cpp/xtoolchain.cmake ../

Странно, изглежда, че се свързва срещу хост библиотеки, за разлика от целевите библиотеки. make VERBOSE=1 показва това

Извежда грешка на свързване за всички библиотеки (тези библиотеки определено присъстват в целевата система rootfs)

/home/test/local/x-tools/arm-unknown-linux-gnueabi/lib/gcc/arm-unknown-linux-gnueabi/4.7.3/../../../../arm-unknown-linux-gnueabi/bin/ld: cannot find -lgmodule-2.0
/home/test/local/x-tools/arm-unknown-linux-gnueabi/lib/gcc/arm-unknown-linux-gnueabi/4.7.3/../../../../arm-unknown-linux-gnueabi/bin/ld: cannot find -lgthread-2.0
/home/test/local/x-tools/arm-unknown-linux-gnueabi/lib/gcc/arm-unknown-linux-gnueabi/4.7.3/../../../../arm-unknown-linux-gnueabi/bin/ld: cannot find -lxml2
/home/test/local/x-tools/arm-unknown-linux-gnueabi/lib/gcc/arm-unknown-linux-gnueabi/4.7.3/../../../../arm-unknown-linux-gnueabi/bin/ld: cannot find -lglib-2.0
/home/test/local/x-tools/arm-unknown-linux-gnueabi/lib/gcc/arm-unknown-linux-gnueabi/4.7.3/../../../../arm-unknown-linux-gnueabi/bin/ld: cannot find -lsqlite3
/home/test/local/x-tools/arm-unknown-linux-gnueabi/lib/gcc/arm-unknown-linux-gnueabi/4.7.3/../../../../arm-unknown-linux-gnueabi/bin/ld: cannot find -ldbus-1
collect2: error: ld returned 1 exit status

Малко съм изгубен.

Редактиране:

Както е поискано, ето още няколко неща от CMakeLists.txt

set (SOURCES
file1.cc
file2.cc
main.cc
)

# Similarly, why not concise files grouping that will be reused ;)?
set (COMMONS_LIBS
${OpenCV_LIBS} 
pthread
${GLIBMM_LIBRARIES} 
${GTKMM_LIBRARIES} 
#${GSTMM_LIBRARIES}
${GSTREAMER_LIBRARIES}
${SQLITE3_LIBRARIES}
#${DBUS_GLIB_LIBRARY}
${DBUS_LIBRARIES}
${DBUS_GLIB_LIBRARIES}
${OPENSSL_LIBRARIES}
)

add_executable (
${EXE_DAEMON} 
${SOURCES} 
)

target_link_libraries( 
${EXE_DAEMON} 
$COMMONS_LIBS}
)

install (TARGETS 
${EXE_DAEMON} 
DESTINATION bin)