automation: special configure flags for musl-based systems

QEMU upstream builds with warnings when libc is musl:

  #warning redirecting incorrect #include <sys/signal.h> to <signal.h>

Disable -Werror by passing --disable-werror to the QEMUU config script
if libc is musl.

hvmloader doesn't build on musl systems today. Disable any guest
firmware build.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Acked-by: Wei Liu <wl@xen.org>

diff --git a/automation/scripts/build b/automation/scripts/build
index 7038e5eb50bfd25ed921585febdc7764ca5f457d..959a26d0842ea0d46ddbcde3f5a10aa6ab53fee8 100755 (executable)
--- a/automation/scripts/build
+++ b/automation/scripts/build
@@ -28,6 +28,14 @@ if [[ "${CC}" == "clang"* ]]; then
     cfgargs+=("--disable-stubdom")
 fi
 
+if ! test -z "$(ldd /bin/ls|grep musl|head -1)"; then
+    # disable --disable-werror for QEMUU when building with MUSL
+    cfgargs+=("--with-extra-qemuu-configure-args=\"--disable-werror\"")
+    # hvmloader doesn't build on MUSL systems
+    cfgargs+=("--disable-seabios")
+    cfgargs+=("--disable-rombios")
+fi
+
 # Qemu requires Python 3.5 or later
 if ! type python3 || python3 -c "import sys; res = sys.version_info < (3, 5); exit(not(res))"; then
     cfgargs+=("--with-system-qemu=/bin/false")