=== Prerequisites ===
-We assume you are building on a GNU/Linux host system such as Debian GNU/Linux.
-Windows builds have been reported successfully using the Cygwin environment, but
-we do not officially support this.
+We assume you are building on a GNU/Linux host system such as Debian
+GNU/Linux. Successful builds have also been reported using MacOS X
+and the Cygwin environment for MS Windows, but we do not officially support
+this.
# Get a GNU toolchain (gcc/binutils) for ARM (e.g. from http://gnuarm.com/)
# Set your path to include the arm-elf-* executables of your toolchain
=== Details ===
-The master Makefile will build
+The master Makefile will build:
* libosmocore for the host (x86 or whatever you use)
* libosmocore for the target (ARM)
- * osmocon and layer2 executalbes for the host (linking libosmocore)
- * the actual target firmware images
+ * osmocon and layer23 executables for the host (linking libosmocore)
+ * the actual target firmware images (in src/target/firmware/board/*/*.bin)
+
+== Transmitting ==
+
+For safety reasons, all code that can enable the transmitter on the phone is
+disabled in the default builds. Plese check the src/target/firmware/Makefile
+for the "#CFLAGS += -DCONFIG_TX_ENABLE" line.
+
+Please notice that GSM operates in licensed spectrum and in most jurisdictions
+you will need a license from a regulatory authority to transmit.