hi all
  i had download the Mesa 7.0.2 from sourceforge
First step i unpacked
packages to Mesa-7.0.2

Second step
cd to Mesa-7.0.2
then run make linux-x86-64
there are lots of warnings and last the error come out
i paste the error lines below hope anyone know whats wrong with it and how to solve it

gcc -c -I../../include -I../../src/mesa -I../../src/mesa/main -I../../src/mesa/glapi -I../../src/mesa/math -I../../src/mesa/tnl -I../../src/mesa/shader -I../../src/mesa/shader/grammar -I../../src/mesa/shader/slang -I../../src/mesa/swrast -I../../src/mesa/swrast_setup -Wall -Wmissing-prototypes -O3 -g -fPIC -m64 -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE -DPTHREADS -DUSE_XSHM -DHAVE_POSIX_MEMALIGN -DUSE_X86_64_ASM -I/usr/X11R6/include -std=c99 -ffast-math  -fno-strict-aliasing drivers/x11/xm_tri.c -o drivers/x11/xm_tri.o
mklib: Making Linux shared library:  libGL.so.1.5.070002
/usr/bin/ld: cannot find -lXext
collect2: ld returned 1 exit status
mklib: Installing libGL.so.1.5.070002 libGL.so.1 libGL.so in ../../lib64
mv: cannot stat `libGL.so.1.5.070002': No such file or directory
make[4]: *** [../../lib64/libGL.so] Error 1
make[4]: Leaving directory `/home/initx/Mesa-7.0.2/src/mesa'
make[3]: *** [default] Error 2
make[3]: Leaving directory `/home/initx/Mesa-7.0.2/src/mesa'
make[2]: *** [subdirs] Error 1
make[2]: Leaving directory `/home/initx/Mesa-7.0.2/src'
make[1]: *** [default] Error 1
make[1]: Leaving directory `/home/initx/Mesa-7.0.2'
make: *** [linux-x86-64] Error 2

thank you all

best regards