[PATCH] Use output synchronization for make for clearer output

[Sam James <sam@gentoo.org>]

Pass --output-sync=line to make to avoid noise when multiple jobs
(especially configures) are running in parallel.

Gentoo and opensuse are both using this for building gcc/gdb/binutils
because it makes logs much more legible.
---
 builder/master.cfg | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/builder/master.cfg b/builder/master.cfg
index 8789dd5..d144008 100644
--- a/builder/master.cfg
+++ b/builder/master.cfg
@@ -963,26 +963,26 @@ getversion_step = steps.SetPropertyFromCommand(
         command='grep PACKAGE_VERSION config.h | cut -f2 -d\\"',
         property="package_version")
 make_step = steps.Compile(
-        command=["make", util.Interpolate('-j%(prop:ncpus)s')],
+        command=["make", "--output-sync=line", util.Interpolate('-j%(prop:ncpus)s')],
         name="make",
         haltOnFailure=True)
 make_check_step = steps.Test(
-        command=["make", "check", util.Interpolate('-j%(prop:ncpus)s')],
+        command=["make", "--output-sync=line", "check", util.Interpolate('-j%(prop:ncpus)s')],
         name="make check", haltOnFailure=False, flunkOnFailure=True)
 # Same as make_check_step but with tests/test-suite.log recorded
 make_check_test_suite_step = steps.Test(
-        command=["make", "check", util.Interpolate('-j%(prop:ncpus)s')],
+        command=["make", "--output-sync=line", "check", util.Interpolate('-j%(prop:ncpus)s')],
         name="make check", haltOnFailure=False, flunkOnFailure=True,
         logfiles={"test-suite.log": "tests/test-suite.log"})
 make_distcheck_step = steps.Test(
-        command=["make", "distcheck",
+        command=["make", "--output-sync=line", "distcheck",
                  util.Interpolate('-j%(prop:ncpus)s')],
         name="make distcheck", haltOnFailure=False, flunkOnFailure=True,
         timeout=3600)
 # Same as make_distcheck_step but with tests/test-suite-log from _build
 # Needs package_version and package_name properties set
 make_distcheck_test_suite_step = steps.Test(
-        command=["make", "distcheck",
+        command=["make", "--output-sync=line", "distcheck",
                  util.Interpolate('-j%(prop:ncpus)s')],
         name="make distcheck", haltOnFailure=False, flunkOnFailure=True,
         timeout=3600,
-- 
2.39.0