mesa fails during staging, but builds fine

[mistergibson@…]

port install mesa -d ---> Computing dependencies for mesa ---> Staging mesa into destroot Error: Target org.macports.destroot returned: shell command " cd "/opt/var/macports/build/_opt_var_macports_sources_rsync.macports.org_release_ports_x11_mesa/work/Mesa-7.8.1" && /usr/bin/make install INSTALL_DIR=/opt DESTDIR=/opt/var/macports/build/_opt_var_macports_sources_rsync.macports.org_release_ports_x11_mesa/work/destroot " returned error 2 Command output: make[3]: Nothing to be done for `install'. make -C ../../../src/mesa install-libgl

(cd shader/slang/library && make)

exit 1 ;

make[4]: Nothing to be done for `default'. gcc -c -I../../include -I../../src/mesa -I../../src/gallium/include -I../../src/gallium/auxiliary -ggdb3 -Os -Wall -Wmissing-prototypes -std=c99 -ffast-math -fno-strict-aliasing -fno-common -I/opt/include -I/opt/include -fPIC -D_DARWIN_C_SOURCE -DPTHREADS -D_GNU_SOURCE -DGLX_ALIAS_UNSUPPORTED -DGLX_DIRECT_RENDERING -DGLX_USE_APPLEGL state_tracker/st_atom_constbuf.c -o state_tracker/st_atom_constbuf.o In file included from ../../src/gallium/auxiliary/util/u_inlines.h:36,

from state_tracker/st_atom_constbuf.c:40:

../../src/gallium/auxiliary/util/u_atomic.h:35:2: error: #error "Unsupported platform" ../../src/gallium/auxiliary/util/u_atomic.h:300:2: error: #error "No pipe_atomic implementation selected" In file included from state_tracker/st_atom_constbuf.c:40: ../../src/gallium/auxiliary/util/u_inlines.h: In function 'pipe_reference_init': ../../src/gallium/auxiliary/util/u_inlines.h:52: warning: implicit declaration of function 'p_atomic_set' ../../src/gallium/auxiliary/util/u_inlines.h: In function 'pipe_is_referenced': ../../src/gallium/auxiliary/util/u_inlines.h:58: warning: implicit declaration of function 'p_atomic_read' ../../src/gallium/auxiliary/util/u_inlines.h: In function 'pipe_reference': ../../src/gallium/auxiliary/util/u_inlines.h:76: warning: implicit declaration of function 'p_atomic_inc' ../../src/gallium/auxiliary/util/u_inlines.h:81: warning: implicit declaration of function 'p_atomic_dec_zero' make[3]: * [state_tracker/st_atom_constbuf.o] Error 1 make[2]: * [install_libraries] Error 2 make[1]: * [install] Error 1 make: * [install] Error 1

Error: Status 1 encountered during processing.