1). Get source code from XFree86 repository ()
XFree86-4.8.0-src-1.tgz
XFree86-4.8.0-src-2.tgz
XFree86-4.8.0-src-3.tgz
XFree86-4.8.0-src-4.tgz
XFree86-4.8.0-src-5.tgz
XFree86-4.8.0-src-6.tgz
XFree86-4.8.0-src-7.tgz
2).Setup building system
Cross tools like gcc, binutility.
Export your cross tools directory by the command
export CROSSTOOLS=/opt/crosstools/arm
PATH=$PATH:$(CROSSTOOLS)/bin
3).Configure Tinyx with XFree86
Extract files from src tgz
tar xfz XFree86-4.8.0-src-1.tgz
tar xfz XFree86-4.8.0-src-2.tgz
tar xfz XFree86-4.8.0-src-3.tgz
.
.
tar xfz XFree86-4.8.0-src-7.tgz
Two configuration files of tinyx with XFree86
config/cf/host.def tinyx settings
config/cf/cross.def cross tools settings
The host.def configuration file
#undef CrossCompiling
#define CrossCompiling YES
#define BuildServer YES
#define BuiltinRGB YES
#define BuildServerOnly NO
#define BuildClients !BuildServerOnly
#define BuildLibraries YES
#define HasSharedLibraries YES
#define TinyXServer YES
#define XfbdevServer YES
#define BuildBuiltinFonts YES
#define BuildFonts YES /* 各种点阵和矢量字库需要定制 */
#define XF86CardDrivers fbdev
#define XInputDriver mouse keyboard
The cross.def configuration file
#undef i386Architecture
#define Arm32Architecture
#undef OptimizedCDebugFlags
#define OptimizedCDebugFlags -O2
#define ServerCDebugFlags -O2
#undef StandardDefines
#define StandardDefines -Dlinux -D__arm__ -D_POSIX_SOURCE \
-D_BSD_SOURCE -D_GNU_SOURCE -DX_LOCALE
#undef StdIncDir
#define StdIncDir /opt/crosstools/arm/eldk/armVFP/usr/include /* C 库头文件目录 */
#define PostIncDir
/opt/crosstools/arm/eldk/armVFP/usr/lib/gcc/arm-linux-gnueabi/4.2.2/include
#define CppCmd arm-linux-cpp /* 各种编译器 */
#define CplusplusCmd arm-linux-g++
#define HostCcCmd gcc -m32 -O2
#include <cross.rules>
4). Build XFree86
cd xc
make World /* 若有类似 "Unsupported size of `int' type!" 的错误，查看系统 limits.h 包含关系；出现编译错误，一定是编译环境出问题 */
make install /* 会生成 bin ， lib ， include 相关目标对象 */
5).Startup Tinyx
Xfbdev ? /* help */
Xfbdev :0 -nolisten tcp -mouse /dev/input/mice,5 -br >/dev/null 2>&1
xinit /usr/bin/xclock -geometry 80x66+0+0 -- /usr/bin/Xfbdev :0 -br -nolisten tcp