fails in the testsuite, see
http://launchpadlibrarian.net/19760744/buildlog_ubuntu-jaunty-armel.liboil_0.3.15-1_FAILEDTOBUILD.txt.gz
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_add_f32 in class add_f32 failed check (85.1206 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_add_f64 in class add_f64 failed check (70.3766 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_divide_f32 in class divide_f32 failed check (468.486 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_divide_f64 in class divide_f64 failed check (245.835 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_multiply_f32 in class multiply_f32 failed check (36.9818 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_multiply_f64 in class multiply_f64 failed check (16.9093 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_negative_f32 in class negative_f32 failed check (57.8408 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_scalaradd_f32_ns in class scalaradd_f32_ns failed check (98.4264 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_scalarmultiply_f32_ns in class scalarmultiply_f32_ns failed check (44.3786 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_scalarmultiply_f64_ns in class scalarmultiply_f64_ns failed check (0.333829 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_subtract_f32 in class subtract_f32 failed check (37.7969 > 0.1) || (outside=0)
OIL: ERROR liboiltest.c 405: oil_test_check_impl(): function vfp_subtract_f64 in class subtract_f64 failed check (24.2812 > 0.1) || (outside=0)
the package builds ok on a thecus. lowering optimization options to O1 or O0 doesn't help