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[Qemu-devel] [PATCH] configure: Let SDL support be optional on OpenBSD

From: Philippe Mathieu-Daudé
Subject: [Qemu-devel] [PATCH] configure: Let SDL support be optional on OpenBSD
Date: Tue, 22 Jan 2019 20:05:03 +0100

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 

  ERROR: sdl not found or disabled, can not use sdl audio driver

Since SDL is not a requirement for OpenBSD, let it be optional (we remove
it from $audio_drv_list but it stays available in $audio_possible_drivers).
If no audio backends are available, QEMU falls back to the null driver.

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)

  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 
  SDL support       no
  GEN     config-host.h

Suggested-by: Peter Maydell <address@hidden>
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
See https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg02732.html

 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index de768e2343..98fc4fa84a 100755
--- a/configure
+++ b/configure
@@ -828,7 +828,7 @@ NetBSD)
-  audio_drv_list="sdl"
+  audio_drv_list=""

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