Add ESP32 builds to CI, use new toolchains.

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "esp32-rtos-sdk"]
 	path = sdk/esp32-rtos-sdk
 	url = https://github.com/espressif/ESP32_RTOS_SDK.git
+[submodule "toolchains"]
+	path = tools/toolchains
+	url = https://github.com/jmattsson/nodemcu-prebuilt-toolchains.git

.travis.yml

@@ -9,8 +9,7 @@ cache:
   directories:
     - cache
 install:
-- tar -zxvf tools/esp-open-sdk.tar.gz
-- export PATH=$PATH:$PWD/esp-open-sdk/xtensa-lx106-elf/bin
+  - export PATH=$PWD/tools/toolchains/esp8266/bin:$PWD/tools/toolchains/esp32/bin:$PATH
 script:
 - export BUILD_DATE=$(date +%Y%m%d)
 - make EXTRA_CCFLAGS="-DBUILD_DATE='\"'$BUILD_DATE'\"'" all
@@ -23,5 +22,12 @@ script:
 - cd bin/esp8266
 - file_name_integer="nodemcu_integer_${TRAVIS_TAG}.bin"
 - srec_cat -output ${file_name_integer} -binary 0x00000.bin -binary -fill 0xff 0x00000 0x10000 0x10000.bin -binary -offset 0x10000
+- cd ../..
+- make clean
+- make HW=ESP32 EXTRA_CCFLAGS="-DBUILD_DATE='\"'$BUILD_DATE'\"'" all
+- mv bin/esp32 bin/esp32-float
+- make clean
+- make HW=ESP32 EXTRA_CCFLAGS="-DLUA_NUMBER_INTEGRAL -DBUILD_DATE='\"'$BUILD_DATE'\"'"
+- mv bin/esp32 bin/esp32-integer
 # http://docs.travis-ci.com/user/environment-variables/#Convenience-Variables
 - if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then bash "$TRAVIS_BUILD_DIR"/tools/pr-build.sh; fi

tools/toolchains

@@ -0,0 +1 @@
+Subproject commit c43f68cf04b7881d755feb5377613d93c0d5766b