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Thomas Pöchtrager 2019-06-03 18:29:35 +02:00
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@ -11,17 +11,16 @@ OSXCross works **on** x86, x86_64, ARM and AArch64.
For cross-compiling for OS X you need For cross-compiling for OS X you need
* the Clang/LLVM compiler * the Clang/LLVM compiler
* the the [cctools](http://www.opensource.apple.com/tarballs/cctools) * the cctools (lipo, otool, nm, ar, ...) and ld64
(ld, lipo, …), and
* the OSX SDK. * the OSX SDK.
[Clang/LLVM is a cross compiler by default](http://clang.llvm.org/docs/CrossCompilation.html) [Clang/LLVM is a cross compiler by default](http://clang.llvm.org/docs/CrossCompilation.html)
and is now available on nearly every Linux distribution, so we just and is now available on nearly every Linux distribution, so we just
need a proper [port](https://github.com/tpoechtrager/cctools-port) of need a proper [port](https://github.com/tpoechtrager/cctools-port) of
the cctools and the OS X SDK. the cctools/ld64 and the OS X SDK.
OSXCross includes a collection of scripts for preparing the SDK and OSXCross includes a collection of scripts for preparing the SDK and
building the cctools. building the cctools/ld64.
It also includes scripts for optionally building It also includes scripts for optionally building
* Clang using gcc (for the case your distribution does not include it), * Clang using gcc (for the case your distribution does not include it),
@ -49,7 +48,7 @@ to the tarballs/ directory.
Then ensure you have the following installed on your system: Then ensure you have the following installed on your system:
`Clang 3.4+`, `cmake`, `git`, `patch`, `Python`, `libssl-devel` (openssl) `Clang 3.4+`, `cmake`, `git`, `patch`, `Python`, `libssl-devel` (openssl)
`lzma-devel`, `libxml2-devel`(<=10.6 only) and the `bash shell`. `lzma-devel`, `libxml2-devel` and the `bash shell`.
You can run 'sudo tools/get\_dependencies.sh' to get these (and the You can run 'sudo tools/get\_dependencies.sh' to get these (and the
optional packages) automatically. (outdated) optional packages) automatically. (outdated)
@ -60,6 +59,13 @@ optional packages) automatically. (outdated)
- `llvm-devel`: For ld64 `-bitcode_bundle` support - `llvm-devel`: For ld64 `-bitcode_bundle` support
- `uuid-devel`: For ld64 `-random_uuid` support - `uuid-devel`: For ld64 `-random_uuid` support
On Ubuntu trusty you must upgrade CMake to >= 3.2.3 first. Or do this:
```shell
curl -sSL https://cmake.org/files/v3.14/cmake-3.14.5-Linux-x86_64.tar.gz | sudo tar -xzC /opt
export PATH=/opt/cmake-3.14.5-Linux-x86_64/:$PATH
```
##### Building Clang ##### ##### Building Clang #####
OSXCross uses `clang` as the default compiler for building its tools, and also OSXCross uses `clang` as the default compiler for building its tools, and also
@ -84,12 +90,6 @@ else, set the `INSTALLPREFIX` variable. For example:
INSTALLPREFIX=/opt/clang ./build_clang.sh INSTALLPREFIX=/opt/clang ./build_clang.sh
``` ```
On debian-like systems you can also use [llvm.org/apt](http://llvm.org/apt) to
get a newer version of clang.
But be careful, that repository is known to cause
[troubles](https://github.com/tpoechtrager/osxcross/issues/16).
##### Building OSXCross ##### ##### Building OSXCross #####
To build the cross toolchain (using `clang`), run: To build the cross toolchain (using `clang`), run:
@ -179,7 +179,7 @@ This method may require up to 20 GB of free disk space.
An SSD is recommended for this method. An SSD is recommended for this method.
1. Download Xcode like described in 'Packaging the SDK on Mac OS X' 1. Download Xcode like described in 'Packaging the SDK on Mac OS X'
2. Install ... 2. Install `clang`, `make`, `libssl-devel`, `lzma-devel` and `libxml2-devel`
3. Run `./tools/gen_sdk_package_pbzx.sh <xcode>.xip` 3. Run `./tools/gen_sdk_package_pbzx.sh <xcode>.xip`
4. Copy or move the SDK into the tarballs/ directory 4. Copy or move the SDK into the tarballs/ directory