Fix Landlock Make so it can read pattern rule vars

It turned out that specifying all SRCS and INCS as dependencies on the
pattern rules for all headers, caused `make` memory usage to skyrocket
from 40mb ot 160mb. This change also reduces the build graph another 4%.

tool/build/blinkenlights.c

@@ -30,6 +30,7 @@
 #include "libc/calls/termios.h"
 #include "libc/calls/ucontext.h"
 #include "libc/dce.h"
+#include "libc/errno.h"
 #include "libc/fmt/bing.internal.h"
 #include "libc/fmt/conv.h"
 #include "libc/fmt/fmt.h"

tool/build/fixupobj.c

@@ -16,7 +16,6 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/safemacros.internal.h"
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/stat.h"
 #include "libc/dce.h"
@@ -25,7 +24,9 @@
 #include "libc/elf/struct/rela.h"
 #include "libc/elf/struct/shdr.h"
 #include "libc/elf/struct/sym.h"
+#include "libc/errno.h"
 #include "libc/fmt/itoa.h"
+#include "libc/intrin/safemacros.internal.h"
 #include "libc/log/check.h"
 #include "libc/log/log.h"
 #include "libc/runtime/runtime.h"

tool/build/lib/syscall.c

@@ -76,6 +76,7 @@
 #include "libc/sysv/consts/w.h"
 #include "libc/sysv/errfuns.h"
 #include "libc/time/struct/timezone.h"
+#include "libc/time/struct/utimbuf.h"
 #include "libc/time/time.h"
 #include "libc/x/x.h"
 #include "third_party/mbedtls/endian.h"