Made everything a bit more friendly. Esp-open-sdk nowadays is the toolchain builder of choice anyway; it now works without modifications to that.

Makefile

@@ -11,8 +11,9 @@
 BUILD_BASE	= build
 FW_BASE		= firmware
 
-# Base directory for the compiler
-XTENSA_TOOLS_ROOT ?= /opt/Espressif/crosstool-NG/builds/xtensa-lx106-elf/bin
+# Base directory for the compiler. Needs a / at the end; if not set it'll use the tools that are in
+# the PATH.
+XTENSA_TOOLS_ROOT ?= 
 
 #Extra Tensilica includes from the ESS VM
 SDK_EXTRA_INCLUDES ?= /opt/Espressif/include
@@ -66,9 +67,9 @@ FW_FILE_2	= 0x40000
 FW_FILE_2_ARGS	= -es .irom0.text $@ -ec
 
 # select which tools to use as compiler, librarian and linker
-CC		:= $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc
-AR		:= $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-ar
-LD		:= $(XTENSA_TOOLS_ROOT)/xtensa-lx106-elf-gcc
+CC		:= $(XTENSA_TOOLS_ROOT)xtensa-lx106-elf-gcc
+AR		:= $(XTENSA_TOOLS_ROOT)xtensa-lx106-elf-ar
+LD		:= $(XTENSA_TOOLS_ROOT)xtensa-lx106-elf-gcc
 
 
 

README

@@ -34,18 +34,17 @@ allows you to control a LED that's connected to GPIO2.
 BUILDING EVERYTHING
 
 For this, you need an environment that can compile ESP8266 firmware. Environments for this still
-are in flux at the moment, but I'm using a crosstool-ng gcc setup combined with the libs & includes
-from the ESP SDK and ESP VM. You probably also need an UNIX-like system; I'm working on
-Debian Linux myself. 
+are in flux at the moment, but I'm using esp-open-sdk: https://github.com/pfalcon/esp-open-sdk .
+You probably also need an UNIX-like system; I'm working on Debian Linux myself. 
 
 To manage the paths to all this, you can source a small shell fragment into your current session. For
 example, I source a file with these contents:
-export PATH=${PWD}/crosstool-NG/builds/xtensa-lx106-elf/bin:$PATH
-export XTENSA_TOOLS_ROOT=${PWD}/crosstool-NG/builds/xtensa-lx106-elf/bin
-export SDK_BASE=${PWD}/esp_iot_sdk_v0.9.5/
-export SDK_EXTRA_INCLUDES=${PWD}/esp_iot_sdk_novm_unpacked/usr/xtensa/XtDevTools/install/builds/RC-2010.1-win32/lx106/xtensa-elf/include/
-export ESPTOOL=${PWD}/esptool/esptool.py
+export PATH=${PWD}/esp-open-sdk/xtensa-lx106-elf/bin:$PATH
+export SDK_BASE=${PWD}/esp-open-sdk/sdk
+export ESPTOOL=${PWD}/esptool/esptool
 export ESPPORT=/dev/ttyUSB0
+export ESPBAUD=460800
+
 Actual setup of the SDK and toolchain is out of the scope of this document, so I hope this helps you
 enough to set up your own if you haven't already. 
 
@@ -75,7 +74,7 @@ WRITING CODE FOR THE WEBSERVER
 the SDK works, this shouldn't be too hard :P
 
 
-CHANGE FROM SDK 0.9.3 (and earlier) TO SDK 0.9.4:
+CHANGE FROM SDK 0.9.3 (and earlier) TO SDK 0.9.4 (and later):
 Change all occurences of
 espconn_sent(connData->conn, (uint8 *)buff, len);
 to

include/espmissingincludes.h

@@ -1,8 +1,9 @@
 #ifndef ESPMISSINGINCLUDES_H
 #define ESPMISSINGINCLUDES_H
 
-#include <ets_sys.h>
 #include <stdint.h>
+#include <c_types.h>
+#include <ets_sys.h>
 
 //Missing function prototypes in include folders. Gcc will warn on these if we don't define 'em anywhere.
 //MOST OF THESE ARE GUESSED! but they seem to swork and shut up the compiler.

include/stdint.h

@@ -1,8 +0,0 @@
-
-//Including the system-wide stdint.h messes stuff up... but I don't want to change heatshrink
-//not to do it. Including this dummy file fixes it too, tho'.
-
-#ifndef __ets__
-//Do include stdint for testing builds.
-#include_next <stdint.h>
-#endif

user/heatshrink_decoder.c

@@ -6,7 +6,6 @@
 #define _STDLIB_H_
 #define _STRING_H_
 #define _STDDEF_H
-#define _STDINT_H
 
 #include "espmissingincludes.h"
 #include "c_types.h"