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oxen-mq
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cmake work-around for cmake < 3.21 

PkgConfig::xyz won't exist before 3.21 if xyz doesn't require any flags
(which is common for a system-installed header-only library like oxenc).

(CMake bug 22180)
This commit is contained in:
Jason Rhinelander 2022-03-30 16:09:40 -03:00
parent 77c4840273
commit bbdf4af98f
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1 changed files with 4 additions and 1 deletions
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5
CMakeLists.txt
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@ -76,7 +76,10 @@ elseif(BUILD_SHARED_LIBS)
pkg_check_modules(oxenc liboxenc IMPORTED_TARGET)
if(oxenc_FOUND)
target_link_libraries(oxenmq PUBLIC PkgConfig::oxenc)
# Work around cmake bug 22180 (PkgConfig::tgt not set if no flags needed)
if(TARGET PkgConfig::oxenc OR CMAKE_VERSION VERSION_GREATER_EQUAL "3.21")
target_link_libraries(oxenmq PUBLIC PkgConfig::oxenc)
endif()
else()
add_subdirectory(oxen-encoding)
target_link_libraries(oxenmq PUBLIC oxenc)