Currently if we try to build QEMU on OpenBSD with SDL disabled, we get:
$ ./configure --cc=x86_64-unknown-openbsd6.1-gcc-4.9.4 --python=python2.7
--disable-sdl
ERROR: sdl not found or disabled, can not use sdl audio driver
Since SDL is not a requirement for OpenBSD, let it be optional.
If it is not found, or the user explicitly disable it, remove it
from the audio_drv_list.
If no audio backends are available, QEMU will fall back to the
null driver.
Instead of displaying nothing when audio_drv_list ends up empty,
display "none".
This does not change the default behavior:
$ ./configure --cc=x86_64-unknown-openbsd6.1-gcc-4.9.4 --python=python2.7
SDL support yes (1.2.15)
Audio drivers sdl
WARNING: Use of SDL 1.2 is deprecated and will be removed in
WARNING: future releases. Please switch to using SDL 2.0
GEN config-host.h
...
but allows to build without SDL:
$ ./configure --cc=x86_64-unknown-openbsd6.1-gcc-4.9.4 --python=python2.7
--disable-sdl
WARN: sdl not found or disabled, can not use sdl audio driver
SDL support no
Audio drivers none
GEN config-host.h
...
Suggested-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
configure | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/configure b/configure
index d50defceb7..fa444e9921 100755
--- a/configure
+++ b/configure
@@ -3379,7 +3379,8 @@ for drv in $audio_drv_list; do
sdl)
if test "$sdl" = "no"; then
- error_exit "sdl not found or disabled, can not use sdl audio driver"
+ echo "WARN: sdl not found or disabled, can not use sdl audio driver"
+ audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/sdl *//g')
fi
;;
@@ -3408,6 +3409,9 @@ for drv in $audio_drv_list; do
;;
esac
done
+if test -z "$audio_drv_list"; then
+ audio_drv_list="none"
+fi
##########################################
# BrlAPI probe
--
2.20.1
