Compile of git fails.
Folowed this howto: http://turqee.tumblr.com/post/230394871/dri2-for-radeon-r600-700-chipsets-on-ubuntu-9-10

mturquette@quantum:~/src/mesa$ ./autogen.sh 
mturquette@quantum:~/src/mesa$ ./configure --prefix=/opt/xorg --with-dri-drivers=radeon,r600 --disable-gallium
mturquette@quantum:~/src/mesa$ make -j16
mturquette@quantum:~/src/mesa$ sudo make install

gcc -c -I. -I../../../../../src/mesa/drivers/dri/common -Iserver -I../../../../../include -I../../../../../src/mesa -I../../../../../src/egl/main -I../../../../../src/egl/drivers/dri -I/usr/include/drm    -g -O2 -Wall -Wmissing-prototypes -std=c99 -ffast-math -fno-strict-aliasing  -fPIC  -DUSE_X86_64_ASM -D_GNU_SOURCE -DPTHREADS -DHAVE_POSIX_MEMALIGN -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS -DHAVE_LIBDRM_RADEON=1 -I/usr/include/drm   -DRADEON_R100 -Wall radeon_sanity.c -o radeon_sanity.o
gcc -c -I. -I../../../../../src/mesa/drivers/dri/common -Iserver -I../../../../../include -I../../../../../src/mesa -I../../../../../src/egl/main -I../../../../../src/egl/drivers/dri -I/usr/include/drm    -g -O2 -Wall -Wmissing-prototypes -std=c99 -ffast-math -fno-strict-aliasing  -fPIC  -DUSE_X86_64_ASM -D_GNU_SOURCE -DPTHREADS -DHAVE_POSIX_MEMALIGN -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS -DHAVE_LIBDRM_RADEON=1 -I/usr/include/drm   -DRADEON_R100 -Wall radeon_bo_legacy.c -o radeon_bo_legacy.o
radeon_bo_legacy.c:54:27: error: radeon_bo_int.h: No such file or directory
radeon_bo_legacy.c:66: error: field ‘base’ has incomplete type
radeon_bo_legacy.c: In function ‘legacy_is_pending’:
radeon_bo_legacy.c:198: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:213: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘legacy_wait_pending’:
radeon_bo_legacy.c:229: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘bo_dma_alloc’:
radeon_bo_legacy.c:334: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:347: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:358: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘bo_dma_free’:
radeon_bo_legacy.c:366: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘bo_unref’:
radeon_bo_legacy.c:490: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘bo_map’:
radeon_bo_legacy.c:505: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:512: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:528: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘bo_unmap’:
radeon_bo_legacy.c:546: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘bo_is_busy’:
radeon_bo_legacy.c:554: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: At top level:
radeon_bo_legacy.c:572: warning: initialization from incompatible pointer type
radeon_bo_legacy.c:573: warning: initialization from incompatible pointer type
radeon_bo_legacy.c:574: warning: initialization from incompatible pointer type
radeon_bo_legacy.c:575: warning: initialization from incompatible pointer type
radeon_bo_legacy.c:577: warning: initialization from incompatible pointer type
radeon_bo_legacy.c:581: warning: initialization from incompatible pointer type
radeon_bo_legacy.c: In function ‘bo_vram_validate’:
radeon_bo_legacy.c:587: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:596: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:636: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:642: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:644: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:668: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:669: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:673: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:681: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘radeon_bo_legacy_validate’:
radeon_bo_legacy.c:710: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:717: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:720: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:726: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:730: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:746: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘radeon_bo_legacy_pending’:
radeon_bo_legacy.c:755: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c: In function ‘radeon_bo_legacy_relocs_size’:
radeon_bo_legacy.c:908: error: dereferencing pointer to incomplete type
radeon_bo_legacy.c:911: error: dereferencing pointer to incomplete type
gmake[6]: *** [radeon_bo_legacy.o] Error 1
gmake[6]: *** Waiting for unfinished jobs....
gmake[6]: Leaving directory `/usr/src/mesa/src/mesa/drivers/dri/radeon'
gmake[5]: *** [lib] Error 2
gmake[5]: Leaving directory `/usr/src/mesa/src/mesa/drivers/dri/radeon'
gmake[4]: *** [subdirs] Error 1
gmake[4]: Leaving directory `/usr/src/mesa/src/mesa/drivers/dri'
gmake[3]: *** [default] Error 1
gmake[3]: Leaving directory `/usr/src/mesa/src/mesa/drivers'
gmake[2]: *** [driver_subdirs] Error 2
gmake[2]: Leaving directory `/usr/src/mesa/src/mesa'
make[1]: *** [subdirs] Error 1
make[1]: Leaving directory `/usr/src/mesa/src'
make: *** [default] Error 1

So where is that header file?