Some rare headers like ipc/shm and pthread_np cause
machine/param.h to be included which defines a macro called ALIGN.
Signed-off-by: Matt Turner <mattst88@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3559>
#ifdef HAVE_SYS_SHM_H
#include <sys/ipc.h>
#include <sys/shm.h>
+#ifdef __FreeBSD__
+/* sys/ipc.h -> sys/_types.h -> machine/param.h
+ * - defines ALIGN which clashes with our ALIGN
+ */
+#undef ALIGN
+#endif
#endif
#include "pipe/p_compiler.h"
#endif
#ifdef __FreeBSD__
+/* pthread_np.h -> sys/param.h -> machine/param.h
+ * - defines ALIGN which clashes with our ALIGN
+ */
+#undef ALIGN
#define cpu_set_t cpuset_t
#endif