在编译前我已经做好了D-bus1.8.10，glib2.28.6，bluez-libs-3.36，bluez-utils-3.36的编译，并且已经设置好了环境，如果遇到明明已经成功了编译，却找不到编译后的库文件，可以参考http://blog.csdn.net/wang_shuai_ww/article/details/41720841。

我这里在完成上面说的之后，编译bluez-5.25遇到的问题如下：

首先是找不到libudev。

这个错误使用命令sudo apt-get install libudev-dev。如果使用的是Ubuntu的官方源，可能会报错，具体的解决方法，参考http://blog.csdn.net/wang_shuai_ww/article/details/41720605。

安装完之后，再次配置出现error: libical is required的错误，找不到 libical 。

解决方法同上sudo apt-get install libical-dev，如果参考http://blog.csdn.net/wang_shuai_ww/article/details/41720605已经修改了源，那么这一步是没有问题的。

然后又报错error: readline header files are required，这个可以参考http://blog.chinaunix.net/uid-20196318-id-3930371.html或者http://ubuntuforums.org/showthread.php?t=1670531，实际上使用sudo apt-get install libreadline-dev命令即可。如果使用的arm编译器没有改头文件，即使安装了，可能仍然解决不了，这时只需要把宿主机的/usr/includereadline整个目录拷贝到自己的arm-linux的编译器的usr/include目录下即可。不同的arm编译器可能路径不同，我这里的路径是/usr/local/arm/arm-cortex_a9-eabi-4.7/arm-cortex_a9-linux-gnueabi/sysroot/usr/include/。

然后还有错误checking systemd system unit dir... configure: error: systemd system unit directory is required，错误真多，烦死人。

该错误可以参考http://askubuntu.com/questions/343663/ubuntu-13-04-and-bluez-5-8-configure-error-systemd-system-unit-directory-is-re，具体的就是加上编译选项--sysconfdir=/etc --localstatedir=/var --enable-experimental --with-systemdsystemunitdir=/lib/systemd/system --with-systemduserunitdir=/usr/lib/systemd

重新配置，终于大功告成。

附上配置的整个流程：

checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-strip... no
checking for strip... strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking how to create a pax tar archive... gnutar
checking for style of include used by make... GNU
checking for arm-gcc... arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include accepts -g... yes
checking for arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include option to accept ISO C89... none needed
checking dependency style of arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include... gcc3
checking how to run the C preprocessor... arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking minix/config.h usability... no
checking minix/config.h presence... no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... yes
checking whether make supports nested variables... (cached) yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for arm-pkg-config... no
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for C/C++ restrict keyword... __restrict
checking for arm-gcc... (cached) arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include
checking whether we are using the GNU C compiler... (cached) yes
checking whether arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include accepts -g... (cached) yes
checking for arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include option to accept ISO C89... (cached) none needed
checking dependency style of arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include... (cached) gcc3
checking whether arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include and cc understand -c and -o together... yes
checking whether arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include accepts -fPIE... yes
checking build system type... arm-cortex_a9-linux-gnueabi
checking host system type... arm-unknown-none
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for fgrep... /bin/grep -F
checking for ld used by arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include... /usr/local/arm/arm-cortex_a9-eabi-4.7/arm-cortex_a9-linux-gnueabi/bin/ld
checking if the linker (/usr/local/arm/arm-cortex_a9-eabi-4.7/arm-cortex_a9-linux-gnueabi/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... no
checking for arm-dumpbin... no
checking for arm-link... no
checking for dumpbin... no
checking for link... link -dump
checking the name lister (nm) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert arm-cortex_a9-linux-gnueabi file names to arm-unknown-none format... func_convert_file_noop
checking how to convert arm-cortex_a9-linux-gnueabi file names to toolchain format... func_convert_file_noop
checking for /usr/local/arm/arm-cortex_a9-eabi-4.7/arm-cortex_a9-linux-gnueabi/bin/ld option to reload object files... -r
checking for arm-objdump... no
checking for objdump... objdump
checking how to recognize dependent libraries... unknown
checking for arm-dlltool... no
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for arm-ar... no
checking for ar... ar
checking for archiver @FILE support... @
checking for arm-strip... strip
checking for arm-ranlib... no
checking for ranlib... ranlib
checking command to parse nm output from arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include object... ok
checking for sysroot... no
checking for arm-mt... no
checking for mt... mt
checking if mt is a manifest tool... no
checking for dlfcn.h... yes
checking for objdir... .libs
checking if arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include supports -fno-rtti -fno-exceptions... no
checking for arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include option to produce PIC... -fPIC -DPIC
checking if arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include PIC flag -fPIC -DPIC works... yes
checking if arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include static flag -static works... yes
checking if arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include supports -c -o file.o... yes
checking if arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include supports -c -o file.o... (cached) yes
checking whether the arm-cortex_a9-linux-gnueabi-gcc -L/wsh_space/my_install/usr/lib/lib -I/wsh_space/my_install/usr/lib/include linker (/usr/local/arm/arm-cortex_a9-eabi-4.7/arm-cortex_a9-linux-gnueabi/bin/ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... no
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... no
checking whether to build shared libraries... no
checking whether to build static libraries... yes
checking for signalfd... yes
checking for clock_gettime in -lrt... yes
checking for pthread_create in -lpthread... yes
checking for dlopen in -ldl... yes
checking for GLIB... yes
checking for DBUS... yes
checking D-Bus configuration directory... /wsh_space/my_install/usr/lib/etc
checking D-Bus system bus services dir... /wsh_space/my_install/usr/lib/share/dbus-1/system-services
checking D-Bus session bus services dir... /wsh_space/my_install/usr/lib/share/dbus-1/services
checking for UDEV... yes
checking for udev_hwdb_new in -ludev... no
checking udev directory... /lib/udev
checking for ICAL... yes
checking readline/readline.h usability... yes
checking readline/readline.h presence... yes
checking for readline/readline.h... yes
configure: creating ./config.status
config.status: creating Makefile
config.status: creating src/bluetoothd.8
config.status: creating lib/bluez.pc
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing depfiles commands
config.status: executing libtool commands

编译bluez-5.25 遇到的错误及解决方法