[PATCH 06/27] configure, meson: move libnuma detection to meson

[Paolo Bonzini]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure                     | 31 -------------------------------
 meson.build                   | 25 ++++++++++++++++++++-----
 meson_options.txt             |  2 ++
 scripts/meson-buildoptions.sh |  3 +++
 4 files changed, 25 insertions(+), 36 deletions(-)

diff --git a/configure b/configure
index cdaab251c8..afb6e8744a 100755
--- a/configure
+++ b/configure
@@ -332,7 +332,6 @@ debug_stack_usage="no"
 tls_priority="NORMAL"
 tpm="$default_feature"
 live_block_migration=${default_feature:-yes}
-numa="$default_feature"
 replication=${default_feature:-yes}
 bochs=${default_feature:-yes}
 cloop=${default_feature:-yes}
@@ -1048,10 +1047,6 @@ for opt do
   ;;
   --enable-live-block-migration) live_block_migration="yes"
   ;;
-  --disable-numa) numa="no"
-  ;;
-  --enable-numa) numa="yes"
-  ;;
   --disable-replication) replication="no"
   ;;
   --enable-replication) replication="yes"
@@ -1398,7 +1393,6 @@ cat << EOF
   live-block-migration   Block migration in the main migration stream
   coroutine-pool  coroutine freelist (better performance)
   tpm             TPM support
-  numa            libnuma support
   replication     replication support
   opengl          opengl support
   qom-cast-debug  cast debugging support
@@ -2476,26 +2470,6 @@ EOF
   fi
 fi
 
-##########################################
-# libnuma probe
-
-if test "$numa" != "no" ; then
-  cat > $TMPC << EOF
-#include <numa.h>
-int main(void) { return numa_available(); }
-EOF
-
-  if compile_prog "" "-lnuma" ; then
-    numa=yes
-    numa_libs="-lnuma"
-  else
-    if test "$numa" = "yes" ; then
-      feature_not_found "numa" "install numactl devel"
-    fi
-    numa=no
-  fi
-fi
-
 # check for usbfs
 have_usbfs=no
 if test "$linux_user" = "yes"; then
@@ -3463,11 +3437,6 @@ if test "$default_targets" = "yes"; then
   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
 fi
 
-if test "$numa" = "yes"; then
-  echo "CONFIG_NUMA=y" >> $config_host_mak
-  echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
-fi
-
 if test "$ccache_cpp2" = "yes"; then
   echo "export CCACHE_CPP2=y" >> $config_host_mak
 fi
diff --git a/meson.build b/meson.build
index 1d4ba12f52..cfb02f31ca 100644
--- a/meson.build
+++ b/meson.build
@@ -1164,14 +1164,28 @@ if lzo.found() and not cc.links('''
   endif
 endif
 
+numa = not_found
+if not get_option('numa').auto() or have_system or have_tools
+  numa = cc.find_library('numa', has_headers: ['numa.h'],
+                              required: get_option('numa'),
+                              kwargs: static_kwargs)
+endif
+if numa.found() and not cc.links('''
+   #include <numa.h>
+   int main(void) { return numa_available(); }
+   ''', dependencies: numa)
+  numa = not_found
+  if get_option('numa').enabled()
+    error('could not link numa')
+  else
+    warning('could not link numa, disabling')
+  endif
+endif
+
 rdma = not_found
 if 'CONFIG_RDMA' in config_host
   rdma = declare_dependency(link_args: config_host['RDMA_LIBS'].split())
 endif
-numa = not_found
-if 'CONFIG_NUMA' in config_host
-  numa = declare_dependency(link_args: config_host['NUMA_LIBS'].split())
-endif
 xen = not_found
 if 'CONFIG_XEN_BACKEND' in config_host
   xen = declare_dependency(compile_args: config_host['XEN_CFLAGS'].split(),
@@ -1472,6 +1486,7 @@ config_host_data.set('CONFIG_LIBSSH', libssh.found())
 config_host_data.set('CONFIG_LINUX_AIO', libaio.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_NUMA', numa.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())
@@ -3552,7 +3567,7 @@ summary_info += {'snappy support':    snappy}
 summary_info += {'bzip2 support':     libbzip2}
 summary_info += {'lzfse support':     liblzfse}
 summary_info += {'zstd support':      zstd}
-summary_info += {'NUMA host support': config_host.has_key('CONFIG_NUMA')}
+summary_info += {'NUMA host support': numa}
 summary_info += {'capstone':          capstone_opt == 'internal' ? 
capstone_opt : capstone}
 summary_info += {'libpmem support':   libpmem}
 summary_info += {'libdaxctl support': libdaxctl}
diff --git a/meson_options.txt b/meson_options.txt
index 6efad01528..bb443023b5 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -103,6 +103,8 @@ option('libnfs', type : 'feature', value : 'auto',
        description: 'libnfs block device driver')
 option('mpath', type : 'feature', value : 'auto',
        description: 'Multipath persistent reservation passthrough')
+option('numa', type : 'feature', value : 'auto',
+       description: 'libnuma support')
 option('iconv', type : 'feature', value : 'auto',
        description: 'Font glyph conversion support')
 option('curses', type : 'feature', value : 'auto',
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh
index c558fe6761..855c8df754 100644
--- a/scripts/meson-buildoptions.sh
+++ b/scripts/meson-buildoptions.sh
@@ -72,6 +72,7 @@ meson_options_help() {
   printf "%s\n" '  multiprocess    Out of process device emulation support'
   printf "%s\n" '  netmap          netmap network backend support'
   printf "%s\n" '  nettle          nettle cryptography support'
+  printf "%s\n" '  numa            libnuma support'
   printf "%s\n" '  nvmm            NVMM acceleration support'
   printf "%s\n" '  oss             OSS sound support'
   printf "%s\n" '  pa              PulseAudio sound support'
@@ -221,6 +222,8 @@ _meson_option_parse() {
     --disable-netmap) printf "%s" -Dnetmap=disabled ;;
     --enable-nettle) printf "%s" -Dnettle=enabled ;;
     --disable-nettle) printf "%s" -Dnettle=disabled ;;
+    --enable-numa) printf "%s" -Dnuma=enabled ;;
+    --disable-numa) printf "%s" -Dnuma=disabled ;;
     --enable-nvmm) printf "%s" -Dnvmm=enabled ;;
     --disable-nvmm) printf "%s" -Dnvmm=disabled ;;
     --enable-oss) printf "%s" -Doss=enabled ;;
-- 
2.34.1