[030/143] contrib/vhost-user-gpu: convert to meson

diff --git a/Makefile b/Makefile
index 80d276a..128bebe 100644
--- a/Makefile
+++ b/Makefile
@@ -179,16 +179,10 @@  $(call set-vpath, $(SRC_PATH))
 
 LIBS+=-lz $(LIBS_TOOLS)
 
-vhost-user-json-y =
 HELPERS-y = $(HELPERS)
 
 HELPERS-$(call land,$(CONFIG_SOFTMMU),$(CONFIG_LINUX)) += qemu-bridge-helper$(EXESUF)
 
-ifeq ($(CONFIG_LINUX)$(CONFIG_VIRGL)$(CONFIG_GBM)$(CONFIG_TOOLS),yyyy)
-HELPERS-y += vhost-user-gpu$(EXESUF)
-vhost-user-json-y += contrib/vhost-user-gpu/50-qemu-gpu.json
-endif
-
 # Sphinx does not allow building manuals into the same directory as
 # the source files, so if we're doing an in-tree QEMU build we must
 # build the manuals into a subdirectory (and then install them from
@@ -295,7 +289,6 @@  dummy := $(call unnest-vars,, \
                 elf2dmp-obj-y \
                 ivshmem-client-obj-y \
                 ivshmem-server-obj-y \
-                vhost-user-gpu-obj-y \
                 qga-vss-dll-obj-y \
                 block-obj-y \
                 block-obj-m \
@@ -309,7 +302,7 @@  dummy := $(call unnest-vars,, \
 
 include $(SRC_PATH)/tests/Makefile.include
 
-all: $(DOCS) $(if $(BUILD_DOCS),sphinxdocs) $(TOOLS) $(HELPERS-y) recurse-all modules $(vhost-user-json-y)
+all: $(DOCS) $(if $(BUILD_DOCS),sphinxdocs) $(TOOLS) $(HELPERS-y) recurse-all modules
 
 qemu-version.h: FORCE
 	$(call quiet-command, \
@@ -515,9 +508,6 @@  ivshmem-server$(EXESUF): $(ivshmem-server-obj-y) $(COMMON_LDADDS)
 	$(call LINK, $^)
 endif
 
-vhost-user-gpu$(EXESUF): $(vhost-user-gpu-obj-y) contrib/libvhost-user/libvhost-user.a $(COMMON_LDADDS)
-	$(call LINK, $^)
-
 module_block.h: $(SRC_PATH)/scripts/modules/module_block.py config-host.mak
 	$(call quiet-command,$(PYTHON) $< $@ \
 	$(addprefix $(SRC_PATH)/,$(patsubst %.mo,%.c,$(block-obj-m))), \
@@ -711,12 +701,6 @@  endif
 ifneq ($(HELPERS-y),)
 	$(call install-prog,$(HELPERS-y),$(DESTDIR)$(libexecdir))
 endif
-ifneq ($(vhost-user-json-y),)
-	$(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/vhost-user/"
-	for x in $(vhost-user-json-y); do \
-		$(INSTALL_DATA) $$x "$(DESTDIR)$(qemu_datadir)/vhost-user/"; \
-	done
-endif
 ifdef CONFIG_TRACE_SYSTEMTAP
 	$(INSTALL_PROG) "scripts/qemu-trace-stap" $(DESTDIR)$(bindir)
 endif
diff --git a/Makefile.objs b/Makefile.objs
index 0922c3ed..2f2d4b2 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -106,6 +106,5 @@  qga-vss-dll-obj-y = qga/
 elf2dmp-obj-y = contrib/elf2dmp/
 ivshmem-client-obj-$(CONFIG_IVSHMEM) = contrib/ivshmem-client/
 ivshmem-server-obj-$(CONFIG_IVSHMEM) = contrib/ivshmem-server/
-vhost-user-gpu-obj-y = contrib/vhost-user-gpu/
 
 ######################################################################
diff --git a/contrib/vhost-user-gpu/Makefile.objs b/contrib/vhost-user-gpu/Makefile.objs
deleted file mode 100644
index 0929609..0000000
--- a/contrib/vhost-user-gpu/Makefile.objs
+++ /dev/null
@@ -1,10 +0,0 @@ 
-vhost-user-gpu-obj-y = vhost-user-gpu.o virgl.o vugbm.o
-
-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)
-
-vugbm.o-cflags := $(GBM_CFLAGS)
-vugbm.o-libs := $(GBM_LIBS)
diff --git a/contrib/vhost-user-gpu/meson.build b/contrib/vhost-user-gpu/meson.build
new file mode 100644
index 0000000..b4b4dc3
--- /dev/null
+++ b/contrib/vhost-user-gpu/meson.build
@@ -0,0 +1,11 @@ 
+if 'CONFIG_TOOLS' in config_host and 'CONFIG_VIRGL' in config_host \
+    and 'CONFIG_GBM' in config_host and 'CONFIG_LINUX' in config_host
+  executable('vhost-user-gpu', files('vhost-user-gpu.c', 'virgl.c', 'vugbm.c'),
+             link_with: libvhost_user,
+             dependencies: [qemuutil, pixman, gbm, virgl])
+
+  configure_file(input: '50-qemu-gpu.json.in',
+                 output: '50-qemu-gpu.json',
+                 configuration: config_host,
+                 install_dir: config_host['qemu_datadir'] / 'vhost-user')
+endif
diff --git a/meson.build b/meson.build
index 924fbed..894584a 100644
--- a/meson.build
+++ b/meson.build
@@ -79,6 +79,8 @@  if 'CONFIG_GNUTLS' in config_host
   gnutls = declare_dependency(compile_args: config_host['GNUTLS_CFLAGS'].split(),
                               link_args: config_host['GNUTLS_LIBS'].split())
 endif
+pixman = declare_dependency(compile_args: config_host['PIXMAN_CFLAGS'].split(),
+                            link_args: config_host['PIXMAN_LIBS'].split())
 seccomp = not_found
 if 'CONFIG_SECCOMP' in config_host
   seccomp = declare_dependency(compile_args: config_host['SECCOMP_CFLAGS'].split(),
@@ -93,6 +95,16 @@  if 'CONFIG_LIBISCSI' in config_host
   libiscsi = declare_dependency(compile_args: config_host['LIBISCSI_CFLAGS'].split(),
                                 link_args: config_host['LIBISCSI_LIBS'].split())
 endif
+gbm = not_found
+if 'CONFIG_GBM' in config_host
+  gbm = declare_dependency(compile_args: config_host['GBM_CFLAGS'].split(),
+                           link_args: config_host['GBM_LIBS'].split())
+endif
+virgl = not_found
+if 'CONFIG_VIRGL' in config_host
+  virgl = declare_dependency(compile_args: config_host['VIRGL_CFLAGS'].split(),
+                             link_args: config_host['VIRGL_LIBS'].split())
+endif
 
 target_dirs = config_host['TARGET_DIRS'].split()
 have_user = false
@@ -245,6 +257,9 @@  if have_tools
   if 'CONFIG_VHOST_USER' in config_host
     subdir('contrib/libvhost-user')
     subdir('contrib/vhost-user-blk')
+    if 'CONFIG_LINUX' in config_host
+      subdir('contrib/vhost-user-gpu')
+    endif
     subdir('contrib/vhost-user-input')
     subdir('contrib/vhost-user-scsi')
   endif
diff --git a/rules.mak b/rules.mak
index 7aefd37..1aa6394 100644
--- a/rules.mak
+++ b/rules.mak
@@ -402,13 +402,6 @@  TEXI2MAN = $(call quiet-command, \
 %.8:
 	$(call TEXI2MAN)
 
-GEN_SUBST = $(call quiet-command, \
-	sed -e "s!@libexecdir@!$(libexecdir)!g" < $< > $@, \
-	"GEN","$@")
-
-%.json: %.json.in
-	$(call GEN_SUBST)
-
 # Support for building multiple output files by atomically executing
 # a single rule which depends on several input files (so the rule
 # will be executed exactly once, not once per output file, and