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Update OSX building instructions to cover GCC 4.9.2.

This commit is contained in:
Dominic Clifton 2015-08-20 18:34:15 +01:00
parent 2e81a2892f
commit f0b0cbd83a
1 changed files with 8 additions and 10 deletions
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18
docs/development/Building in Mac OS X.md
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@ -3,7 +3,7 @@
Building in Mac OS X can be accomplished in just a few steps:
* Install general development tools (clang, make, git)
* Install ARM GCC 4.8 series compiler
* Install ARM GCC 4.9 series compiler
* Checkout Cleanflight sourcecode through git
* Build the code
@ -35,22 +35,20 @@ installation, open up XCode and enter its preferences menu. Go to the "downloads
[from the App Store]: https://itunes.apple.com/us/app/xcode/id497799835
## Install ARM GCC 4.8 series compiler
## Install ARM GCC 4.9 series compiler
Cleanflight is built using the 4.8 series GCC compiler provided by the [GNU Tools for ARM Embedded Processors project][].
The newest "4.9" series compiler produces builds that don't boot on CC3D and Sparky targets (and perhaps others), so it's
better to use the older 4.8 compiler for the moment.
Cleanflight is built using the 4.9 series GCC compiler provided by the [GNU Tools for ARM Embedded Processors project][].
Hit the "all downloads" link on the right side of the GNU Tools for ARM page to view [the older releases][]. Grab the
Mac installation tarball for the latest version in the 4.8 series (e.g. 4.8-2014-q3-update). Move it somewhere useful
Mac installation tarball for the latest version in the 4.9 series (e.g. 4.9-2015q2). Move it somewhere useful
such as a `~/development` folder (in your home directory) and double click it to unpack it. You should end up with a
folder called `~/development/gcc-arm-none-eabi-4_8-2014q3/`.
folder called `~/development/gcc-arm-none-eabi-4_9-2015q2/`.
Now you just need to add the `bin/` directory from inside the GCC directory to your system's path. Run `nano ~/.profile`. Add a
new line at the end of the file which adds the path for the `bin/` folder to your path, like so:
```
export PATH=$PATH:~/development/gcc-arm-none-eabi-4_8-2014q3/bin
export PATH=$PATH:~/development/gcc-arm-none-eabi-4_9-2015q2/bin
```
Press CTRL+X to exit nano, and answer "y" when prompted to save your changes.
@ -64,8 +62,8 @@ arm-none-eabi-gcc --version
You should get output similar to:
```
arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.8.4 20140725 (release) [ARM/embedded-4_8-branch revision 213147]
Copyright (C) 2013 Free Software Foundation, Inc.
arm-none-eabi-gcc.exe (GNU Tools for ARM Embedded Processors) 4.9.3 20150529 (release) [ARM/embedded-4_9-branch revision 224288]
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
```