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Timothy Gu 2013-11-26 16:10:17 -08:00
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How-MXE-builds-its-package.md

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MXE is a set of Makefiles that is used to mimic a mini Linux distribution.
## Building packages
0. It checks whether the requirements are met.
1. When you run `make`, it automatically parses index.html to get a list of available packages.
2. It includes the Makefile for the specified package in `src/`.
3. It applies any patch if necessary.
4. It calls macro specified in the package Makefile.
When a person runs `make`, MXE does the following things:
1. It checks whether the requirements are met. If successful, it `touch`es a file in `usr/installed` to
prevent MXE from chacking that every time you run `make`.
2. When you run `make`, it automatically parses index.html to get a list of available packages.
3. It includes the Makefile for the specified package in `src/`.
4. It downloads the `$($(PKG)_FILE)` and checks it against `$($(PKG)_CHECKSUM)`.
5. It extracts the tarball or zip file using the appropriate command.
6. It applies any patch if necessary.
7. It calls macro specified in the package Makefile.
1. If `$(PKG)_BUILD_$(TARGET)` macro exists, then it will call that macro.
2. If it doesn't, then it calls `$(PKG)_BUILD` macro to build the package.
2. If it doesn't, then it calls `$(PKG)_BUILD` macro to build the package.
8. It adds an empty file in `usr/$(TARGET)/installed/` with the name of the package, signifying that the
package is built successfully.