https://bugs.llvm.org/show_bug.cgi?id=49508
Bug ID: 49508
Summary: Dependencies in INTERFACE_LINK_LIBRARIES should be
detected with find_dependency
Product: Build scripts
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: cmake
Assignee: unassignedb...@nondot.org
Reporter: ma...@emmenlauer.de
CC: llvm-bugs@lists.llvm.org
Currently `LLVMExports.cmake` contains `INTERFACE_LINK_LIBRARIES` with entries
like `"z;rt;dl;tinfo;-lpthread;m;LLVMDemangle"` for the LLVM Ubuntu packages.
This assumes that a user has library `z` and others available in a system
directory, which may not necessarily be the case.
Modern clean cmake policy suggests that library dependencies should be searched
with `find_dependency` (see
https://cmake.org/cmake/help/latest/module/CMakeFindDependencyMacro.html)
rather than hardcoded. This will allow to include paths in the search that a
user configured for the original main cmake project. I.e. it allows users to
say `cmake -DCMAKE_PREFIX_PATH=xxx`, to add a number of non-standard
directories to the search list.
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