[PATCH] meson: add tests option

[Romain Naour]

tests/fp/fp-bench.c use fenv.h that is not always provided
by the libc (uClibc).

To workaround this issue, add an new meson option to
disable tests while building Qemu.

Fixes:
http://autobuild.buildroot.net/results/53f5d8baa994d599b9da013ee643b82353366ec3/build-end.log

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 configure         | 7 +++++++
 meson.build       | 6 +++++-
 meson_options.txt | 3 +++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index a79b3746d4..cd114f4b9e 100755
--- a/configure
+++ b/configure
@@ -464,6 +464,7 @@ gettext="auto"
 fuse="auto"
 fuse_lseek="auto"
 multiprocess="no"
+tests="auto"
 
 malloc_trim="auto"
 
@@ -1562,6 +1563,10 @@ for opt do
   ;;
   --disable-multiprocess) multiprocess="no"
   ;;
+  --disable-tests) tests="disabled"
+  ;;
+  --enable-tests) tests="enabled"
+  ;;
   *)
       echo "ERROR: unknown option $opt"
       echo "Try '$0 --help' for more information"
@@ -1915,6 +1920,7 @@ disabled with --disable-FEATURE, default is enabled if 
available
   fuse            FUSE block device export
   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
   multiprocess    Multiprocess QEMU support
+  tests           build tests
 
 NOTE: The object files are built at the place where configure is launched
 EOF
@@ -6428,6 +6434,7 @@ NINJA=$ninja $meson setup \
         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek 
-Dguest_agent_msi=$guest_agent_msi \
         $(if test "$default_features" = no; then echo 
"-Dauto_features=disabled"; fi) \
        -Dtcg_interpreter=$tcg_interpreter \
+        -Dtests=$tests \
         $cross_arg \
         "$PWD" "$source_path"
 
diff --git a/meson.build b/meson.build
index 05a67c20d9..2d7cbc0fbd 100644
--- a/meson.build
+++ b/meson.build
@@ -2341,7 +2341,11 @@ subdir('scripts')
 subdir('tools')
 subdir('pc-bios')
 subdir('docs')
-subdir('tests')
+
+if get_option('tests').enabled()
+  subdir('tests')
+endif
+
 if gtk.found()
   subdir('po')
 endif
diff --git a/meson_options.txt b/meson_options.txt
index 675a9c500a..be30ad5450 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -114,6 +114,9 @@ option('virtfs', type: 'feature', value: 'auto',
 option('virtiofsd', type: 'feature', value: 'auto',
        description: 'build virtiofs daemon (virtiofsd)')
 
+option('tests', type : 'feature', value : 'auto',
+       description: 'Tests build support')
+
 option('capstone', type: 'combo', value: 'auto',
        choices: ['disabled', 'enabled', 'auto', 'system', 'internal'],
        description: 'Whether and how to find the capstone library')
-- 
2.29.2