Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

meson fixes:
* bump submodule to 0.55.1
* SDL, pixman and zlib fixes
* firmwarepath fix
* fix firmware builds

meson related:
* move install to Meson
* move NSIS to Meson
* do not make meson use cmake
* add description to options

# gpg: Signature made Tue 01 Sep 2020 17:11:03 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini-gitlab/tags/for-upstream: (26 commits)
  Makefile: Fix in-tree clean/distclean
  Makefile: Add back TAGS/ctags/cscope rules
  meson: add description to options
  build: fix recurse-all target
  meson: use pkg-config method to find dependencies
  configure: do not include ${prefix} in firmwarepath
  meson: add pixman dependency to UI modules
  meson: add pixman dependency to chardev/baum module
  meson: add NSIS building
  meson: use meson mandir instead of qemu_mandir
  meson: pass docdir option
  meson: use meson datadir instead of qemu_datadir
  meson: pass qemu_suffix option
  configure: build docdir like other suffixed directories
  configure: always /-seperate directory from qemu_suffix
  configure: rename confsuffix option
  meson: move zlib detection to meson
  build-sys: remove install target from Makefile
  meson: install $localstatedir/run for qga
  meson: install desktop file
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 14 insertions, 13 deletions

diff --git a/docs/devel/build-system.rst b/docs/devel/build-system.rst
index 58bf392430..0c09fb9a54 100644
--- a/docs/devel/build-system.rst
+++ b/docs/devel/build-system.rst
@@ -66,46 +66,47 @@ following tasks:
    upon completion.
 
 
-Taking the probe for SDL as an example, we have the following pieces
+Taking the probe for SDL2_Image as an example, we have the following pieces
 in configure::
 
   # Initial variable state
-  sdl=auto
+  sdl_image=auto
 
   ..snip..
 
   # Configure flag processing
-  --disable-gnutls) sdl=disabled
+  --disable-sdl-image) sdl_image=disabled
   ;;
-  --enable-gnutls) sdl=enabled
+  --enable-sdl-image) sdl_image=enabled
   ;;
 
   ..snip..
 
   # Help output feature message
-  sdl             SDL UI
+  sdl-image         SDL Image support for icons
 
   ..snip..
 
   # Meson invocation
-  -Dsdl=$sdl
+  -Dsdl_image=$sdl_image
 
 In meson_options.txt::
 
-  option('sdl', type : 'feature', value : 'auto')
+  option('sdl', type : 'feature', value : 'auto',
+         description: 'SDL Image support for icons')
 
 In meson.build::
 
   # Detect dependency
-  sdl = dependency('sdl2',
-                   required: get_option('sdl'),
-                   static: enable_static)
+  sdl_image = dependency('SDL2_image', required: get_option('sdl_image'),
+                         method: 'pkg-config',
+                         static: enable_static)
 
-  # Create config-host.h
-  config_host_data.set('CONFIG_SDL', sdl.found())
+  # Create config-host.h (if applicable)
+  config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
 
   # Summary
-  summary_info += {'SDL support':       sdl.found()}
+  summary_info += {'SDL image support': sdl_image.found()}