mode -DESP8266 from build.extra_flags to preprocessor flags

Author: d-a-v

platform.txt

@@ -62,7 +62,7 @@ compiler.path={runtime.tools.xtensa-lx106-elf-gcc.path}/bin/
 compiler.sdk.path={runtime.platform.path}/tools/sdk
 
 compiler.libc.path={runtime.platform.path}/tools/sdk/libc/xtensa-lx106-elf
-compiler.cpreprocessor.flags=-D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-I{compiler.sdk.path}/include" "-I{compiler.sdk.path}/{build.lwip_include}" "-I{compiler.libc.path}/include" "-I{build.path}/core" -D_EEPROM_START={build.eeprom_start} -D_FS_START={build.spiffs_start} -D_FS_END={build.spiffs_end} -D_FS_BLOCKSIZE={build.spiffs_blocksize} -D_FS_PAGE=0x100
+compiler.cpreprocessor.flags=-D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE -DESP8266 "-I{compiler.sdk.path}/include" "-I{compiler.sdk.path}/{build.lwip_include}" "-I{compiler.libc.path}/include" "-I{build.path}/core" -D_EEPROM_START={build.eeprom_start} -D_FS_START={build.spiffs_start} -D_FS_END={build.spiffs_end} -D_FS_BLOCKSIZE={build.spiffs_blocksize} -D_FS_PAGE=0x100
 
 compiler.c.cmd=xtensa-lx106-elf-gcc
 compiler.c.flags=-c {compiler.warning_flags} -std=gnu17 {build.stacksmash_flags} -Os -g -free -fipa-pta -Wpointer-arith -Wno-implicit-function-declaration -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -falign-functions=4 -MMD -ffunction-sections -fdata-sections {build.exception_flags} {build.sslflags} {build.mmuflags} {build.non32xferflags}
@@ -89,7 +89,7 @@ compiler.elf2hex.flags=
 compiler.size.cmd=xtensa-lx106-elf-size
 
 # This can be overridden in boards.txt
-build.extra_flags=-DESP8266
+build.extra_flags=
 
 # These can be overridden in platform.local.txt
 compiler.c.extra_flags=

tools/boards.txt.py

@@ -774,15 +774,15 @@
             ( '.menu.BoardModel.primo', 'Primo' ),
             ( '.menu.BoardModel.primo.build.board', 'ESP8266_ARDUINO_PRIMO' ),
             ( '.menu.BoardModel.primo.build.variant', 'arduino_spi' ),
-            ( '.menu.BoardModel.primo.build.extra_flags', '-DF_CRYSTAL=40000000 -DESP8266' ),
+            ( '.menu.BoardModel.primo.build.extra_flags', '-DF_CRYSTAL=40000000' ),
             ( '.menu.BoardModel.unowifideved', 'Uno WiFi' ),
             ( '.menu.BoardModel.unowifideved.build.board', 'ESP8266_ARDUINO_UNOWIFI' ),
             ( '.menu.BoardModel.unowifideved.build.variant', 'arduino_uart' ),
-            ( '.menu.BoardModel.unowifideved.build.extra_flags=-DF_CRYSTAL', '40000000 -DESP8266' ),
+            ( '.menu.BoardModel.unowifideved.build.extra_flags=-DF_CRYSTAL', '40000000' ),
             ( '.menu.BoardModel.starottodeved', 'Star OTTO' ),
             ( '.menu.BoardModel.starottodeved.build.variant', 'arduino_uart' ),
             ( '.menu.BoardModel.starottodeved.build.board', 'ESP8266_ARDUINO_STAR_OTTO' ),
-            ( '.menu.BoardModel.starottodeved.build.extra_flags', '-DF_CRYSTAL=40000000 -DESP8266' ),
+            ( '.menu.BoardModel.starottodeved.build.extra_flags', '-DF_CRYSTAL=40000000' ),
         ]),
         'macro': [
             'resetmethod_ck',
@@ -931,7 +931,6 @@
         'opts': {
             '.build.board': 'ESP8266_SONOFF_SV',
             '.build.variant': 'itead',
-            '.build.extra_flags': '-DESP8266',
             '.build.flash_size': '1M',
             '.menu.BoardModel.sonoffSV': 'ITEAD Sonoff SV',
             '.menu.BoardModel.sonoffSV.build.board': 'ESP8266_SONOFF_SV',
@@ -1054,7 +1053,7 @@
     'crystalfreq_menu': collections.OrderedDict([
         ( '.menu.CrystalFreq.26', '26 MHz' ),
         ( '.menu.CrystalFreq.40', '40 MHz' ),
-        ( '.menu.CrystalFreq.40.build.extra_flags', '-DF_CRYSTAL=40000000 -DESP8266' ),
+        ( '.menu.CrystalFreq.40.build.extra_flags', '-DF_CRYSTAL=40000000' ),
         ]),
 
     'flashfreq_menu': collections.OrderedDict([