infra - add 'all' option for savers.

ex) meson . build -Dsavers="all", ...

meson.build

@@ -13,6 +13,7 @@ add_project_arguments('-DEXAMPLE_DIR="@0@/src/examples/images"'.format(src_dir),
 
 config_h.set_quoted('THORVG_VERSION_STRING', meson.project_version())
 
+#Engines
 if get_option('engines').contains('sw') == true
     config_h.set10('THORVG_SW_RASTER_SUPPORT', true)
 endif
@@ -21,6 +22,7 @@ if get_option('engines').contains('gl') == true
     config_h.set10('THORVG_GL_RASTER_SUPPORT', true)
 endif
 
+#Loaders
 all_loaders = false
 
 if get_option('loaders').contains('all') == true
@@ -43,10 +45,18 @@ if all_loaders or get_option('loaders').contains('jpg') == true
     config_h.set10('THORVG_JPG_LOADER_SUPPORT', true)
 endif
 
-if get_option('savers').contains('tvg') == true
+#Savers
+all_savers = false
+
+if get_option('savers').contains('all') == true
+    all_savers = true
+endif
+
+if all_savers or get_option('savers').contains('tvg') == true
     config_h.set10('THORVG_TVG_SAVER_SUPPORT', true)
 endif
 
+#Vectorization
 simd_type = 'none'
 
 if get_option('vector') == true
@@ -59,15 +69,17 @@ if get_option('vector') == true
   endif
 endif
 
+#Bindings
 if get_option('bindings').contains('capi') == true
     config_h.set10('THORVG_CAPI_BINDING_SUPPORT', true)
 endif
 
+#Log
 if get_option('log') == true
     config_h.set10('THORVG_LOG_ENABLED', true)
 endif
 
-
+#Tools
 all_tools = false
 
 if get_option('tools').contains('all') == true
@@ -121,7 +133,7 @@ Summary:
         all_loaders or get_option('loaders').contains('svg'),
         all_loaders or get_option('loaders').contains('png'),
         all_loaders or get_option('loaders').contains('jpg'),
-        get_option('savers').contains('tvg'),
+        all_savers or get_option('savers').contains('tvg'),
         get_option('bindings').contains('capi'),
         get_option('log'),
         get_option('tests'),

meson_options.txt

@@ -12,7 +12,7 @@ option('loaders',
 
 option('savers',
    type: 'array',
-   choices: ['', 'tvg'],
+   choices: ['', 'tvg', 'all'],
    value: [''],
    description: 'Enable File Savers in thorvg')
 

src/savers/meson.build

@@ -1,6 +1,6 @@
 subsaver_dep = []
 
-if get_option('savers').contains('tvg') == true
+if all_savers or get_option('savers').contains('tvg') == true
     subdir('tvg')
 endif