CMake/Tests/RunCMake/target_link_libraries/ConfigCase.cmake at 1c9f83c8ec31b523efc2ea97bfca239faaf808d2 - CMake - Gitea - ZeroTwo

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Brad King 3f976bf201 target_link_libraries: Fix regression in case of $<CONFIG> genex

Since commit b8626261e9 (Precompile headers: Add methods to generate PCH
sources, 2019-07-13, v3.16.0-rc1~182^2~4) we look up source files for a
target using an upper-case configuration even though an original-case
name is sufficient.  Since commit 36ded610af (PCH: Generate sources
during Compute step, 2019-10-05, v3.16.0-rc1~2^2) the source file lookup
is the first time we compute many on-demand structures that depend on
the configuration name.  This caused the `$<CONFIG>` generator
expression to evaluate to the upper-case configuration name in some
cases where we used original-case before.

Fix this by switching the source file lookup to the original-case config
name.  Add a test covering the symptom that led to the discovery of this
problem.

Fixes: #20517

2020-03-30 11:33:55 -04:00

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CMake

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 cmake_policy(VERSION 3.15)
 enable_language(C)
 add_library(iface INTERFACE)
 target_link_libraries(iface INTERFACE "config::iface-$<CONFIG>")
 add_library(impl empty.c)
 target_link_libraries(impl PRIVATE "config::impl-$<CONFIG>" iface)