[PATCH] Build: Add --disable-tests configure flag to avoid tests build - v2

[Rodrigo Vivi <rodrigo.vivi@gmail.com>]

Tests are still being built by default. However this request
came from OSVs in order to allow them to include i-g-t in their
distributions by default avoiding adding more and more dependencies
since we are improving and adding more and more tests.

v2: wait for Ben's spacin fixes and adjusted for new space rules.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>

Conflicts:
	configure.ac
---
 Makefile.am  |  6 +++++-
 configure.ac | 11 ++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 5ea0fd8..0dd615b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -21,12 +21,16 @@
 
 ACLOCAL_AMFLAGS = ${ACLOCAL_FLAGS}
 
-SUBDIRS = lib man tools scripts tests benchmarks demos
+SUBDIRS = lib man tools scripts benchmarks demos
 
 if BUILD_SHADER_DEBUGGER
 SUBDIRS += debugger
 endif
 
+if BUILD_TESTS
+SUBDIRS += tests
+endif
+
 test:
 	${MAKE} -C tests test
 
diff --git a/configure.ac b/configure.ac
index 1c56fa4..e66876c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -122,6 +122,16 @@ AM_CONDITIONAL(BUILD_SHADER_DEBUGGER, [test "x$BUILD_SHADER_DEBUGGER" != xno])
 XORG_TESTSET_CFLAG([THREAD_CFLAGS], [-pthread], [-mt])
 AC_SUBST([THREAD_CFLAGS])
 
+AC_ARG_ENABLE(tests,
+	      AS_HELP_STRING([--disable-tests],
+	      [Disable tests build (default: enabled)]),
+	      [BUILD_TESTS=$enableval], [BUILD_TESTS="yes"])
+if test "x$BUILD_TESTS" = xyes; then
+	AC_DEFINE(BUILD_TESTS, 1, [Build tests])
+	AC_CONFIG_FILES([tests/Makefile])
+fi
+AM_CONDITIONAL(BUILD_TESTS, [test "x$BUILD_TESTS" = xyes])
+
 AC_CONFIG_FILES([
 		 Makefile
 		 benchmarks/Makefile
@@ -129,7 +139,6 @@ AC_CONFIG_FILES([
 		 lib/Makefile
 		 man/Makefile
 		 scripts/Makefile
-		 tests/Makefile
 		 tools/Makefile
 		 debugger/Makefile
 		 debugger/system_routine/Makefile
-- 
1.7.11.7