Add CMake package config file
This change enables automatic detection and consumption of Mbed TLS
library targets from within other CMake projects. By generating an
`MbedTLSConfig.cmake` file, consuming projects receive a more complete
view of these targets, allowing them to be used as dependencies which
properly inherit the transitive dependencies of the libraries.
This is fairly fragile, as it seems Mbed TLS's libraries do not appear
to properly model their dependencies on other targets, including
third-party dependencies. It is, however, sufficient for building and
linking the compiled Mbed TLS libraries when there are no third-party
dependencies involved. Further work is needed for more complex
use-cases, but this will likely meet the needs of most projects.
Resolves #298. Probably useful for #2857.
Signed-off-by: Chris Kay <chris.kay@arm.com>
diff --git a/3rdparty/CMakeLists.txt b/3rdparty/CMakeLists.txt
index 18945e5..fbd0470 100644
--- a/3rdparty/CMakeLists.txt
+++ b/3rdparty/CMakeLists.txt
@@ -1,17 +1,5 @@
-list (APPEND thirdparty_src)
-list (APPEND thirdparty_lib)
-list (APPEND thirdparty_inc_public)
-list (APPEND thirdparty_inc)
-list (APPEND thirdparty_def)
-
execute_process(COMMAND ${MBEDTLS_PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/../scripts/config.py -f ${CMAKE_CURRENT_SOURCE_DIR}/../include/mbedtls/config.h get MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED RESULT_VARIABLE result)
if(${result} EQUAL 0)
add_subdirectory(everest)
endif()
-
-set(thirdparty_src ${thirdparty_src} PARENT_SCOPE)
-set(thirdparty_lib ${thirdparty_lib} PARENT_SCOPE)
-set(thirdparty_inc_public ${thirdparty_inc_public} PARENT_SCOPE)
-set(thirdparty_inc ${thirdparty_inc} PARENT_SCOPE)
-set(thirdparty_def ${thirdparty_def} PARENT_SCOPE)
diff --git a/3rdparty/everest/CMakeLists.txt b/3rdparty/everest/CMakeLists.txt
index d81d995..ff9da7a 100644
--- a/3rdparty/everest/CMakeLists.txt
+++ b/3rdparty/everest/CMakeLists.txt
@@ -1,16 +1,15 @@
-list (APPEND everest_src)
-list (APPEND everest_inc_public)
-list (APPEND everest_inc)
-list (APPEND everest_def)
+add_library(everest
+ library/everest.c
+ library/x25519.c
+ library/Hacl_Curve25519_joined.c)
-set(everest_src
- ${CMAKE_CURRENT_SOURCE_DIR}/library/everest.c
- ${CMAKE_CURRENT_SOURCE_DIR}/library/x25519.c
- ${CMAKE_CURRENT_SOURCE_DIR}/library/Hacl_Curve25519_joined.c
-)
-
-list(APPEND everest_inc_public ${CMAKE_CURRENT_SOURCE_DIR}/include)
-list(APPEND everest_inc ${CMAKE_CURRENT_SOURCE_DIR}/include/everest ${CMAKE_CURRENT_SOURCE_DIR}/include/everest/kremlib)
+target_include_directories(everest
+ PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+ $<BUILD_INTERFACE:${MBEDTLS_DIR}/include>
+ $<INSTALL_INTERFACE:include>
+ PRIVATE include/everest
+ include/everest/kremlib
+ ${MBEDTLS_DIR}/library/)
if(INSTALL_MBEDTLS_HEADERS)
@@ -22,7 +21,7 @@
endif(INSTALL_MBEDTLS_HEADERS)
-set(thirdparty_src ${thirdparty_src} ${everest_src} PARENT_SCOPE)
-set(thirdparty_inc_public ${thirdparty_inc_public} ${everest_inc_public} PARENT_SCOPE)
-set(thirdparty_inc ${thirdparty_inc} ${everest_inc} PARENT_SCOPE)
-set(thirdparty_def ${thirdparty_def} ${everest_def} PARENT_SCOPE)
+install(TARGETS everest
+ EXPORT MbedTLSTargets
+ DESTINATION ${LIB_INSTALL_DIR}
+ PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ)