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Improve CMake backward compatibility

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Use code with clear behavior in CMake 2.8.12 (which we try to support in
Mbed TLS 2.28, although that's mostly for the sake of RHEL, not Windows).
The code in the previous commit relied on features introduced in CMake 3.x,
although it worked as desired by accident because `LIST_DIRECTORIES false`
was effectively ignored and `configure_file` on a directory had no
harmful effect.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2022-12-08 12:12:37 +01:00 committed by Gilles Peskine
parent b0423a260c
commit 29cf15dfbc
1 changed files with 4 additions and 2 deletions
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6
CMakeLists.txt
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@ -153,9 +153,11 @@ function(link_to_source base_name)
endif()
else()
if (IS_DIRECTORY ${target})
file(GLOB_RECURSE files FOLLOW_SYMLINKS LIST_DIRECTORIES false RELATIVE ${target} "${target}/*")
file(GLOB_RECURSE files FOLLOW_SYMLINKS RELATIVE ${target} "${target}/*")
foreach(file IN LISTS files)
configure_file("${target}/${file}" "${link}/${file}" COPYONLY)
if(NOT IS_DIRECTORY "${target}/${file}")
configure_file("${target}/${file}" "${link}/${file}" COPYONLY)
endif()
endforeach(file)
else()
configure_file(${target} ${link} COPYONLY)