[Libguestfs] [PATCH] build: Enable parallel tests.

[Richard W.M. Jones]

Using 'make check' will (with newish automake) run the tests
in parallel.

This has several consequences:

 - The tests run faster overall (measured: 20 mins -> 14 mins)

 - Failure output is written to a file, not displayed, requiring
   changes to autobuilders.

 - Tests must be modified so they do not overwrite each others files.
---
 .gitignore   |  2 ++
 configure.ac | 18 +-----------------
 2 files changed, 3 insertions(+), 17 deletions(-)

diff --git a/.gitignore b/.gitignore
index 1b9ce89..82d6367 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,11 +13,13 @@
 *.jar
 *.la
 *.lo
+*.log
 *.o
 *.orig
 *.patch
 *.rej
 *.swp
+*.trs
 
 bindtests.tmp
 cscope.out
diff --git a/configure.ac b/configure.ac
index 358025f..98b7642 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,23 +31,7 @@ m4_define([libguestfs_release], [13])
 AC_INIT([libguestfs],libguestfs_major.libguestfs_minor.libguestfs_release)
 AC_CONFIG_AUX_DIR([build-aux])
 
-dnl Initialize automake.  automake < 1.12 didn't have serial-tests and
-dnl gives an error if it sees this, but for automake >= 1.13
-dnl serial-tests is required so we have to include it.  Solution is to
-dnl test for the version of automake (by running an external command)
-dnl and provide it if necessary.  Note we have to do this entirely using
-dnl m4 macros since automake queries this macro by running
-dnl 'autoconf --trace'.
-m4_define([serial_tests], [
-    m4_esyscmd([automake --version | head -1 | awk '
-                     {
-                       split ($NF, version, ".");
-                       if (version[1] == 1 && version[2] >= 12)
-                         print "serial-tests";
-                     }'
-    ])
-])
-AM_INIT_AUTOMAKE(foreign serial_tests) dnl NB: Do not [quote] this parameter.
+AM_INIT_AUTOMAKE(foreign) dnl NB: Do not [quote] this parameter.
 
 m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])])
 AM_SILENT_RULES([yes]) # make --enable-silent-rules the default.
-- 
1.9.0