今日编译mipsel-linux的DirectFb碰壁及解决

今日无事，尝试编译DirectFb，使用的工具是君正的交叉编译工具，http://www.ingenic.cn/product.aspx?ID=62

使用库有：

jpeg-6b

freetype-2.5.0.1

DirectFB-1.7.0

步骤如下：

export PREFIX=/opt/mipsel

export LD_LIBRARY_PATH=$PREFIX/lib

export PKG_CONFIG_PATH=$LD_LIBRARY_PATH/pkgconfig

export ARCH=mips

export CROSS_COMPILE=/opt/mipseltools-gcc412-glibc261/bin/mipsel-linux-

export CC=${CROSS_COMPILE}gcc 

export CXX=${CROSS_COMPILE}g++ 

export AR=${CROSS_COMPILE}ar

export RANLIB=${CROSS_COMPILE}ranlib 

export NM=${CROSS_COMPILE}nm 

export AS=${CROSS_COMPILE}as

export LD=${CROSS_COMPILE}ld

cd jpeg-6b

./configure --prefix=$PREFIX --build=i686 --target=mips-linux --host=mips-linux

make

make install

cd freetype-2.5.0.1

./configure --prefix=$PREFIX --build=i686 --target=mips-linux --host=mips-linux

make

make install

这两步之有个小问题，make install 时提示有些目录不存在，比如/opt/man，手动创建再make install 一些就可以了。

cd DirectFB-1.7.0

./configure --prefix=$PREFIX --build=i686 --target=mips-linux --host=mips-linux --disable-x11 --with-gfxdrivers=none --enable-png=no "CFLAGS=-I/opt/mipsel/include"

make

问题来了

make[4]: Entering directory `/opt/directfb/DirectFB-1.7.0/lib/direct'

  CXX    String.lo

String.h:124: error: format string argument not a string type

String.h:129: error: format string argument not a string type

make[4]: *** [String.lo] 错误 1

make[4]: Leaving directory `/opt/directfb/DirectFB-1.7.0/lib/direct'

make[3]: *** [all-recursive] 错误 1

make[3]: Leaving directory `/opt/directfb/DirectFB-1.7.0/lib/direct'

make[2]: *** [all-recursive] 错误 1

make[2]: Leaving directory ``/opt/directfb/DirectFB-1.7.0/lib'

make[1]: *** [all-recursive] 错误 1

make[1]: Leaving directory `/opt/directfb/DirectFB-1.7.0'

make: *** [all] 错误 2

/opt/directfb/是我存放源码的目录。

打开/opt/directfb/DirectFB-1.7.0/lib/direct/目录下String.h，找到124行到129行，内容如下：

     PrintF( const _CharT *format, ... )          D_FORMAT_PRINTF(2);

     StringBase &

     PrintF( const _CharT *format, va_list args, size_t stack_buffer = 300 );

     static StringBase F( const _CharT *format, ... ) D_FORMAT_PRINTF(1);

由于提示的错误是format string argument not a string type，说明参数format的类型必须是字符串类型（带点经验的猜测），所以修改如下：

     PrintF( const char *format, ... )          D_FORMAT_PRINTF(2);

     StringBase &

     PrintF( const char *format, va_list args, size_t stack_buffer = 300 );

     static StringBase F( const char *format, ... ) D_FORMAT_PRINTF(1);

搞定

make

通过

make install

搞定

还没实际在板上跑。