Fixup ninja build more.

BUILD

@@ -17,3 +17,10 @@ Include('windows')
 Include('web')
 Include('pico-ice')
 Include('esp32')
+
+Default('win32')
+Default('win64')
+Default('unix')
+Default('html')
+Default('esp')
+Default('pico')

esp32/BUILD

@@ -12,38 +12,49 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+ESP32_FILES = []
+
 # Main .ino file.
 Mkdir('esp32/ESP32forth')
+ESP32_FILES += [
   Importation('esp32/ESP32forth/README.txt',
-            '$src/esp32/README.txt')
+              '$src/esp32/README.txt'),
-Importation('gen/esp32_boot.h', '$src/esp32/esp32_boot.fs', name='boot')
   Importation('esp32/ESP32forth/ESP32forth.ino',
               '$src/esp32/ESP32forth.ino',
-            implicit=['gen/esp32_boot.h'], keep=True)
+              implicit=['gen/esp32_boot.h'], keep=True),
+]
+Importation('gen/esp32_boot.h', '$src/esp32/esp32_boot.fs', name='boot')
 
 # Optional Compontents.
 Mkdir('esp32/ESP32forth/optional')
+ESP32_FILES = [
   Importation('esp32/ESP32forth/optional/README-optional.txt',
-            '$src/esp32/optional/README-optional.txt')
+              '$src/esp32/optional/README-optional.txt'),
-Esp32Optional('rmt', '$src/esp32/optional/rmt.h', [])
+  Esp32Optional('rmt', '$src/esp32/optional/rmt.h', []),
   Esp32Optional('assemblers', '$src/esp32/optional/assemblers/assemblers.h',
                 [('assembler', '$src/common/assembler.fs'),
                  ('xtensa-assembler', '$src/esp32/optional/assemblers/xtensa-assembler.fs'),
-               ('riscv-assembler', '$src/esp32/optional/assemblers/riscv-assembler.fs')])
+                 ('riscv-assembler', '$src/esp32/optional/assemblers/riscv-assembler.fs')]),
   Esp32Optional('camera', '$src/esp32/optional/camera/camera.h',
-              [('camera', '$src/esp32/optional/camera/camera_server.fs')])
+                [('camera', '$src/esp32/optional/camera/camera_server.fs')]),
   Esp32Optional('interrupts', '$src/esp32/optional/interrupts/interrupts.h',
-              [('interrupts', '$src/esp32/optional/interrupts/timers.fs')])
+                [('interrupts', '$src/esp32/optional/interrupts/timers.fs')]),
   Esp32Optional('oled', '$src/esp32/optional/oled/oled.h',
-              [('oled', '$src/esp32/optional/oled/oled.fs')])
+                [('oled', '$src/esp32/optional/oled/oled.fs')]),
   Esp32Optional('spi-flash', '$src/esp32/optional/spi-flash/spi-flash.h',
-              [('spi-flash', '$src/esp32/optional/spi-flash/spi-flash.fs')])
+                [('spi-flash', '$src/esp32/optional/spi-flash/spi-flash.fs')]),
   Esp32Optional('serial-bluetooth', '$src/esp32/optional/serial-bluetooth/serial-bluetooth.h',
-              [('serial-bluetooth', '$src/esp32/optional/serial-bluetooth/serial-bluetooth.fs')])
+                [('serial-bluetooth', '$src/esp32/optional/serial-bluetooth/serial-bluetooth.fs')]),
+]
 
 # Simulator.
 Mkdir('esp32-sim')
-Compile('gen/print-esp32-builtins', '$src/esp32/print-builtins.cpp')
+ESP32_FILES += [
-Run('gen/esp32_sim_opcodes.h', 'gen/print-esp32-builtins')
   Compile('esp32-sim/esp32-sim', '$src/esp32/sim_main.cpp',
           implicit=['gen/esp32_boot.h', 'gen/esp32_sim_opcodes.h'])
+]
+Compile('gen/print-esp32-builtins', '$src/esp32/print-builtins.cpp'),
+Run('gen/esp32_sim_opcodes.h', 'gen/print-esp32-builtins')
+
+# Main Alias.
+Alias('esp', ' '.join(ESP32_FILES))

pico-ice/BUILD

@@ -12,4 +12,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+Alias('pico', 'gen/pico_ice_boot.h')
 Importation('gen/pico_ice_boot.h', '$src/pico-ice/pico_ice_boot.fs', name='boot')

posix/BUILD

@@ -12,6 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+Alias('unix', 'posix/ueforth')
 Importation('gen/posix_boot.h', '$src/posix/posix_boot.fs', name='boot')
 Compile('posix/ueforth', '$src/posix/main.c',
         implicit=['gen/posix_boot.h'])

tools/configure.py

@@ -234,7 +234,7 @@ def Esp32Optional(main_name, main_source, parts):
                 source, name=name.replace('-', '_') + '_source')
   if not main_source:
     main_source = 'gen/esp32_' + main_name + '.h'
-  Importation('esp32/ESP32forth/optional/' + main_name + '.h',
+  return Importation('esp32/ESP32forth/optional/' + main_name + '.h',
               main_source,
             keep=True,
             deps='gen/esp32_optional_' + main_name + '.h.dd',
@@ -292,6 +292,18 @@ def Run(target, source, implicit=[]):
   return Simple('run', target, source, implicit)
 
 
+def Alias(target, source):
+  global output
+  output += f'build {target}: phony {source}\n'
+  return target
+
+
+def Default(target):
+  global output
+  output += f'default {target}\n'
+  return target
+
+
 def Include(path):
   Mkdir(path)
   path = os.path.join(ROOT_DIR, path, 'BUILD')

web/BUILD

@@ -12,4 +12,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+Alias('html', 'gen/web_boot.js')
 Importation('gen/web_boot.js', '$src/web/web_boot.fs', header_mode='web', name='boot')

windows/BUILD

@@ -19,12 +19,14 @@ Importation('gen/windows_boot_extra.h', '$src/windows/windows_boot_extra.fs',
             header_mode='win', name='boot_extra')
 
 # Compile Win32.
+Alias('win32', 'windows/uEf32.exe')
 CompileW32('windows/uEf32.obj', '$src/windows/main.c',
            implicit=['gen/windows_boot.h', 'gen/windows_boot_extra.h'])
 LinkW32('windows/uEf32.exe',
         ' '.join(['windows/uEf32.obj', 'resources/ueforth_res32.res']))
 
 # Compile Win64.
+Alias('win64', 'windows/uEf64.exe')
 CompileW64('windows/uEf64.obj', '$src/windows/main.c',
            implicit=['gen/windows_boot.h', 'gen/windows_boot_extra.h'])
 LinkW64('windows/uEf64.exe',