[Buildroot] [git commit] package/nut: don't build in parallel

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=1d8de10c5fb36619708898a529977058886f31d1
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

The conditions are not trivial to reproduce, but it can happen that the
headers are not fully regenerated by the time they are included.

This only happens when a python and/or perl interpreter are available,
with a high number of jobs and a high load.

Fixes:
    http://autobuild.buildroot.org/results/523/5231ff39a0839ec5e1962662004214d4b0773068/
    http://autobuild.buildroot.org/results/5a7/5a75d44c028e77b58f0fd9ab794952f2b477dd84/

Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Cc: Peter Korsgaard <peter at korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
 package/nut/nut.mk | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package/nut/nut.mk b/package/nut/nut.mk
index 332ccf9..4ea9947 100644
--- a/package/nut/nut.mk
+++ b/package/nut/nut.mk
@@ -14,6 +14,9 @@ NUT_DEPENDENCIES = host-pkgconf
 # Our patch changes m4 macros, so we need to autoreconf
 NUT_AUTORECONF = YES
 
+# Race condition in tools generation
+NUT_MAKE = $(MAKE1)
+
 # Put the PID files in a read-write place (/var/run is a tmpfs)
 # since the default location (/var/state/ups) maybe readonly.
 NUT_CONF_OPTS = \