Similar to the kernel, require all variables to be declared before statements. Signed-off-by: Dan Williams <dan.j.williams(a)intel.com&gt; --- configure.ac | 1 + 1 file changed, 1 insertion(+) diff --git a/configure.ac b/configure.ac index 6dbfcee88f7d..da56c413bffd 100644 --- a/configure.ac +++ b/configure.ac @@ -148,6 +148,7 @@ my_CFLAGS="\ -Wstrict-prototypes \ -Wtype-limits \ -Wmaybe-uninitialized \ +-Wdeclaration-after-statement \ -Wunused-result \ -D_FORTIFY_SOURCE=2 "