[PATCH] meson: fix missing preprocessor symbols

[Paolo Bonzini]

While most libraries do not need a CONFIG_* symbol because the
"when:" clauses are enough, some do.  Add them back or stop
using them if possible.

In the case of libpmem, the statement to add the CONFIG_* symbol
was still in configure, but could not be triggered because it
checked for "no" instead of "disabled" (and it would be wrong anyway
since the test for the library has not been done yet).

Reported-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Fixes: 587d59d6cc ("configure, meson: convert virgl detection to meson", 
2021-07-06)
Fixes: 83ef16821a ("configure, meson: convert libdaxctl detection to meson", 
2021-07-06)
Fixes: e36e8c70f6 ("configure, meson: convert libpmem detection to meson", 
2021-07-06)
Fixes: 53c22b68e3 ("configure, meson: convert liburing detection to meson", 
2021-07-06)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure                          | 6 ------
 contrib/vhost-user-gpu/meson.build | 2 +-
 meson.build                        | 4 ++++
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/configure b/configure
index a172c83e15..a04b1e075c 100755
--- a/configure
+++ b/configure
@@ -4818,12 +4818,6 @@ elif test "$pthread_setname_np_wo_tid" = "yes" ; then
   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
 fi
 
-if test "$libpmem" = "yes" ; then
-  echo "CONFIG_LIBPMEM=y" >> $config_host_mak
-  echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
-  echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
-fi
-
 if test "$bochs" = "yes" ; then
   echo "CONFIG_BOCHS=y" >> $config_host_mak
 fi
diff --git a/contrib/vhost-user-gpu/meson.build 
b/contrib/vhost-user-gpu/meson.build
index 0ce1515a10..4cb52a91d7 100644
--- a/contrib/vhost-user-gpu/meson.build
+++ b/contrib/vhost-user-gpu/meson.build
@@ -1,4 +1,4 @@
-if 'CONFIG_TOOLS' in config_host and 'CONFIG_VIRGL' in config_host \
+if 'CONFIG_TOOLS' in config_host and virgl.found() \
     and 'CONFIG_GBM' in config_host and 'CONFIG_LINUX' in config_host \
     and pixman.found()
   executable('vhost-user-gpu', files('vhost-user-gpu.c', 'virgl.c', 'vugbm.c'),
diff --git a/meson.build b/meson.build
index 7e12de01be..9cd966a86b 100644
--- a/meson.build
+++ b/meson.build
@@ -1223,8 +1223,11 @@ config_host_data.set('CONFIG_VTE', vte.found())
 config_host_data.set('CONFIG_LIBATTR', have_old_libattr)
 config_host_data.set('CONFIG_LIBCAP_NG', libcap_ng.found())
 config_host_data.set('CONFIG_EBPF', libbpf.found())
+config_host_data.set('CONFIG_LIBDAXCTL', libdaxctl.found())
 config_host_data.set('CONFIG_LIBISCSI', libiscsi.found())
 config_host_data.set('CONFIG_LIBNFS', libnfs.found())
+config_host_data.set('CONFIG_LINUX_IO_URING', linux_io_uring.found())
+config_host_data.set('CONFIG_LIBPMEM', libpmem.found())
 config_host_data.set('CONFIG_RBD', rbd.found())
 config_host_data.set('CONFIG_SDL', sdl.found())
 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
@@ -1237,6 +1240,7 @@ config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
 config_host_data.set('CONFIG_VNC_PNG', png.found())
 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
+config_host_data.set('CONFIG_VTE', vte.found())
 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
 config_host_data.set('CONFIG_KEYUTILS', keyutils.found())
 config_host_data.set('CONFIG_GETTID', has_gettid)
-- 
2.31.1