tar.gz              cd freetype-2.3.7/              PKG_CONFIG_PATH=/opt/lib/ pkgconfig CC=arm-none-linux-gnueabi-gcc \              CFLAGS=-I/opt/include LDFLAGS=-L/opt/lib ./configure --host=arm-none-linux-gnueabi  \              --prefix=/opt --with-gnu-ld             make && make install              cd .. && rm -rf freetype*         (5) directfb 编译:  2. 配置根文件系统      (1) 复制库文件(可根据需要选择，比如帮助文件之类的可以不要, 还可以strip，减少库的占用空间)            cp -avrf /opt/*  /mnt/armfs/opt/      (2) 复制字体文件           cp -avf /usr/share/fonts/truetype/wqy/ wqy-zenhei.ttc  /mnt/armfs/opt/share/directfb- 1.2.8/  3. 编译可应用程序 (参考directfb的文本显示例子)      程序代码(我用的是linux系统， 所以源代码中输入的中文应该是utf8的)： /**  * text.c  *  * Drawing text  */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <directfb.h> /*  * (Globals)  */ static IDirectFB *dfb = NULL; static IDirectFBSurface *primary = NULL; static int screen_width  = 0; static int screen_height = 0; #define DFBCHECK(x...)                                          \   {                                                             \     DFBResult err = x;                                          \                                                                  \     if (err != DFB_OK)                                          \       {                                                         \         fprintf( stderr, "%s <%d>:\n\t", __FILE__, __LINE__ ); \         DirectFBErrorFatal( #x, err );                         \       }                                                         \   } /*  * The font we will use to draw the text.  */ static IDirectFBFont *font = NULL; /*  * The string we will draw. Strings in DirectFB have to UTF-8 encoded.  * For ASCII characters this does not make any difference.  */ static char *text = "DirectFB rulez!我是中国人"; #define DATADIR "/opt/share/directfb-1.2.8" int main (int argc, char **argv) {   int i, width;   /*    * A structure describing font properties.    */   DFBFontDescription font_dsc;   /*    * (Locals)    */   DFBSurfaceDescription dsc;   /*    * (Initialize)    */   DFBCHECK (DirectFBInit (&argc, &argv));   DFBCHECK (DirectFBCreate (&dfb));   DFBCHECK (dfb->SetCooperativeLevel (dfb, DFSCL_FULLSCREEN));   dsc.flags = DSDESC_CAPS;   dsc.caps  = DSCAPS_PRIMARY | DSCAPS_FLIPPING;   DFBCHECK (dfb->CreateSurface( dfb, &dsc, &primary ));   DFBCHECK (primary->GetSize (primary, &screen_width, &screen_height));   /*    * First we need to create a font interface by passing a filename    * and a font description to specify the desired font size. DirectFB will    * find (or not) a suitable font loader.    */   font_dsc.flags = DFDESC_HEIGHT;   font_dsc.height = 48;   DFBCHECK (dfb->CreateFont (dfb, DATADIR"/wqy-zenhei.ttc", &font_dsc, &font));     /*    * Set the font to the surface we want to draw to.    */   DFBCHECK (primary->SetFont (primary, font));     /*    * Determine the size of our string when drawn using the loaded font.    * Since we are interested in the full string, we pass -1 as string length.    */   DFBCHECK (font->GetStringWidth (font, text, -1, &width));   /*    * We want to let the text slide in on the right and slide out on the left.    */   for (i = screen_width; i > -width; i--)     {       /*        * Clear the screen.             */       DFBCHECK (primary->SetColor (primary, 0x0, 0x0, 0x0, 0xFF));       DFBCHECK (primary->FillRectangle (primary, 0, 0, screen_width, screen_height));       /*        * Set the color that will be used to draw the text.        */       DFBCHECK (primary->SetColor (primary, 0x80, 0x0, 0x20, 0xFF));       /*        * Draw the text left aligned with "i" as the X coordinate.        */       DFBCHECK (primary->DrawString (primary, text, -1, i, screen_height / 2, DSTF_LEFT));       /*        * Flip the front and back buffer, but wait for the vertical retrace to avoid tearing.        */       DFBCHECK (primary->Flip (primary, NULL, DSFLIP_WAITFORSYNC));     }   /*    * Release the font.    */   font->Release (font);   /*    * (Release)    */   primary->Release (primary);   dfb->Release (dfb);     return 23; }