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>
[ovs_cv_gnu_make_if],
[cat <<'EOF' > conftest.mk
conftest.out:
- echo $(if x,y,z) > conftest.out
+ echo $(if x,y,z) > conftest.out
.PHONY: all
EOF
rm -f conftest.out