Merge branch 'dd/sparse-glibc-workaround'

Squelch false-positive from sparse.

* dd/sparse-glibc-workaround:
  sparse: ignore warning from new glibc headers

Author: gitster

Makefile

@@ -1412,7 +1412,7 @@ ARFLAGS = rcs
 PTHREAD_CFLAGS =
 
 # For the 'sparse' target
-SPARSE_FLAGS ?= -std=gnu99
+SPARSE_FLAGS ?= -std=gnu99 -D__STDC_NO_VLA__
 SP_EXTRA_FLAGS =
 
 # For informing GIT-BUILD-OPTIONS of the SANITIZE=leak,address targets