[Qemu-devel] [PATCH v1 01/24] configure: add test for docker availability

["Alex Bennée" <alex.bennee@linaro.org>]

This tests for a working docker installation without sudo and sets up
config-host.mak accordingly. This will be useful from cross compiling
things in the future.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 configure | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/configure b/configure
index 4d0e92c96c..b402befe94 100755
--- a/configure
+++ b/configure
@@ -451,6 +451,7 @@ jemalloc="no"
 replication="yes"
 vxhs=""
 libxml2=""
+docker="no"
 
 supported_cpu="no"
 supported_os="no"
@@ -5396,6 +5397,23 @@ EOF
   fi
 fi
 
+##########################################
+# Docker and cross-compiler support
+#
+# This is specifically for building test
+# cases for foreign architectures, not
+# cross-compiling QEMU itself.
+
+if has "docker"; then
+    if docker images  >/dev/null 2>&1 ; then
+        docker="yes"
+    else
+        # docker may be available but using sudo
+        # so we won't use it for cross-building
+        docker="maybe"
+    fi
+fi
+
 ##########################################
 # End of CC checks
 # After here, no more $cc or $ld runs
@@ -5857,6 +5875,7 @@ echo "avx2 optimization $avx2_opt"
 echo "replication support $replication"
 echo "VxHS block device $vxhs"
 echo "capstone          $capstone"
+echo "docker            $docker"
 
 if test "$sdl_too_old" = "yes"; then
 echo "-> Your SDL version is too old - please upgrade to have SDL support"
@@ -6680,6 +6699,10 @@ if test "$gcov" = "yes" ; then
   echo "GCOV=$gcov_tool" >> $config_host_mak
 fi
 
+if test "$docker" = "yes"; then
+    echo "HAVE_USER_DOCKER=y" >> $config_host_mak
+fi
+
 # use included Linux headers
 if test "$linux" = "yes" ; then
   mkdir -p linux-headers
-- 
2.16.2