[PULL 12/61] build-sys: do not make qemu-ga link with pixman

[Paolo Bonzini]

From: Marc-André Lureau <address@hidden>

Since commit d52c454aadcdae74506f315ebf8b58bb79a05573 ("contrib: add
vhost-user-gpu"), qemu-ga is linking with pixman.

This is because the Make-based build-system use a global namespace for
variables, and we rely on "main.o-libs" for different linking targets.

Note: this kind of variable clashing is hard to fix or prevent
currently.  meson should help, as declarations have a linear
dependency and doesn't rely so much on variables and clever tricks.

Note2: we have a lot of main.c (or other duplicated names!) in
tree. Imho, it would be annoying and a bad workaroud to rename all
those to avoid conflicts like I did here.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1811670

Signed-off-by: Marc-André Lureau <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 contrib/vhost-user-gpu/Makefile.objs                | 6 +++---
 contrib/vhost-user-gpu/{main.c => vhost-user-gpu.c} | 0
 2 files changed, 3 insertions(+), 3 deletions(-)
 rename contrib/vhost-user-gpu/{main.c => vhost-user-gpu.c} (100%)

diff --git a/contrib/vhost-user-gpu/Makefile.objs 
b/contrib/vhost-user-gpu/Makefile.objs
index 6170c91..0929609 100644
--- a/contrib/vhost-user-gpu/Makefile.objs
+++ b/contrib/vhost-user-gpu/Makefile.objs
@@ -1,7 +1,7 @@
-vhost-user-gpu-obj-y = main.o virgl.o vugbm.o
+vhost-user-gpu-obj-y = vhost-user-gpu.o virgl.o vugbm.o
 
-main.o-cflags := $(PIXMAN_CFLAGS) $(GBM_CFLAGS)
-main.o-libs := $(PIXMAN_LIBS)
+vhost-user-gpu.o-cflags := $(PIXMAN_CFLAGS) $(GBM_CFLAGS)
+vhost-user-gpu.o-libs := $(PIXMAN_LIBS)
 
 virgl.o-cflags := $(VIRGL_CFLAGS) $(GBM_CFLAGS)
 virgl.o-libs := $(VIRGL_LIBS)
diff --git a/contrib/vhost-user-gpu/main.c 
b/contrib/vhost-user-gpu/vhost-user-gpu.c
similarity index 100%
rename from contrib/vhost-user-gpu/main.c
rename to contrib/vhost-user-gpu/vhost-user-gpu.c
-- 
1.8.3.1