acinclude.m4: Fix "sparse", via detection of GNU make "if" directive.
authorBen Pfaff <blp@nicira.com>
Mon, 19 May 2014 14:52:21 +0000 (07:52 -0700)
committerBen Pfaff <blp@nicira.com>
Mon, 19 May 2014 14:53:01 +0000 (07:53 -0700)
commitd49acbfa5c7ac929944e537915f39a54f5cc56c5
treeddc4470d805bb10bcca54b1cb736602186555f99
parent69d60aea7969b0ba4b6c55c01c376a2047259fc3
acinclude.m4: Fix "sparse", via detection of GNU make "if" directive.

Make treats tabs very differently from spaces at the beginning of a line,
so this test must use a tab instead of a space.  This partially reverts
commit a0903134d2d60 (acinclude.m4: Expand tabs).

Without this commit, the build system never enables checking with sparse
because it never detects that GNU make "if" works.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
acinclude.m4