rustc: Add search paths to dylib load paths #13857
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When a syntax extension is loaded by the compiler, the dylib that is opened may have other dylibs that it depends on. The dynamic linker must be able to find these libraries on the system or else the library will fail to load. Currently, unix gets by with the use of rpaths. This relies on the dylib not moving around too drastically relative to its dependencies. For windows, however, this is no rpath available, and in theory unix should work without rpaths as well. This modifies the compiler to add all -L search directories to the dynamic linker's set of load paths. This is currently managed through environment variables for each platform. Closes rust-lang#13848
bors
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Apr 30, 2014
When a syntax extension is loaded by the compiler, the dylib that is opened may have other dylibs that it depends on. The dynamic linker must be able to find these libraries on the system or else the library will fail to load. Currently, unix gets by with the use of rpaths. This relies on the dylib not moving around too drastically relative to its dependencies. For windows, however, this is no rpath available, and in theory unix should work without rpaths as well. This modifies the compiler to add all -L search directories to the dynamic linker's set of load paths. This is currently managed through environment variables for each platform. Closes #13848
arcnmx
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Jan 9, 2023
feat: Implement yeeting See tracking issue: rust-lang#96373 Before:  After: 
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When a syntax extension is loaded by the compiler, the dylib that is opened may
have other dylibs that it depends on. The dynamic linker must be able to find
these libraries on the system or else the library will fail to load.
Currently, unix gets by with the use of rpaths. This relies on the dylib not
moving around too drastically relative to its dependencies. For windows,
however, this is no rpath available, and in theory unix should work without
rpaths as well.
This modifies the compiler to add all -L search directories to the dynamic
linker's set of load paths. This is currently managed through environment
variables for each platform.
Closes #13848