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This contains a few hacks very specific to Qt's buildsystem. These can be reverted once we split the build between native and target builds. Qt's build contains a circular dependency when not using a system zlib. By far the easiest fix is to switch to a system zlib, rather than Qt's own. However, that confuses Qt's cross build which assumes that when using a system zlib, it should also find a system (native) zlib for native tools. The build breaks if that zlib is not present. To solve this: 1. Always use a system zlib rather than the one provided by qt 2. Set force_bootstrap, which instructs the build tools to be built as though we're cross-compiling (build != target) 3. For build tools, use qt's internal zlib so that a native zlib is not required. Step 3 means that if any zlib headers are found by the native build, it will confuse Qt's internal zlib build. So we also need to make sure that the target headers/libs aren't found. To do so, specify that our cflags/cxxflags/cppflags/ldflags only apply for non-host builds.
|6 years ago|
|qt||6 years ago|