With USE="-openmp" I get: /var/tmp/portage/media-gfx/blender-2.70a-r1/work/blender-v2.70a/source/blender/editors/sculpt_paint/paint_cursor.c: In function ‘load_tex’: /var/tmp/portage/media-gfx/blender-2.70a-r1/work/blender-v2.70a/source/blender/editors/sculpt_paint/paint_cursor.c:252:7: error: implicit declaration of function ‘omp_get_thr ead_num’ [-Werror=implicit-function-declaration] paint_get_tex_pixel_col(mtex, x, y, rgba, pool, omp_get_thread_num()); ^ Reproducible: Always
*** This bug has been marked as a duplicate of bug 507738 ***