cmake: Make installation optional

Useful for embedding secp256k1 in a subproject.
bitcoin-core · Apr 20, 2023 · 47ac3d6 · 47ac3d6
1 parent 2e035af
commit 47ac3d6
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Showing 2 changed files with 50 additions and 45 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -32,6 +32,8 @@ if(SECP256K1_DISABLE_SHARED)
  set(BUILD_SHARED_LIBS OFF)
 endif()
 
+option(SECP256K1_INSTALL "Enable installation" ON)
+
 option(SECP256K1_ENABLE_MODULE_ECDH "Enable ECDH module." ON)
 if(SECP256K1_ENABLE_MODULE_ECDH)
  add_definitions(-DENABLE_MODULE_ECDH=1)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -73,51 +73,54 @@ if(SECP256K1_BUILD_CTIME_TESTS)
  target_link_libraries(ctime_tests secp256k1)
 endif()
 
-install(TARGETS secp256k1
- EXPORT ${PROJECT_NAME}-targets
- RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
- LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
- ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-)
-set(${PROJECT_NAME}_headers
- "${PROJECT_SOURCE_DIR}/include/secp256k1.h"
- "${PROJECT_SOURCE_DIR}/include/secp256k1_preallocated.h"
-)
-if(SECP256K1_ENABLE_MODULE_ECDH)
- list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ecdh.h")
-endif()
-if(SECP256K1_ENABLE_MODULE_RECOVERY)
- list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_recovery.h")
-endif()
-if(SECP256K1_ENABLE_MODULE_EXTRAKEYS)
- list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_extrakeys.h")
-endif()
-if(SECP256K1_ENABLE_MODULE_SCHNORRSIG)
- list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h")
-endif()
-install(FILES ${${PROJECT_NAME}_headers}
- DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-)
+if(SECP256K1_INSTALL)
+ install(TARGETS secp256k1
+ EXPORT ${PROJECT_NAME}-targets
+ RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+ LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ )
+ set(${PROJECT_NAME}_headers
+ "${PROJECT_SOURCE_DIR}/include/secp256k1.h"
+ "${PROJECT_SOURCE_DIR}/include/secp256k1_preallocated.h"
+ )
+ if(SECP256K1_ENABLE_MODULE_ECDH)
+ list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ecdh.h")
+ endif()
+ if(SECP256K1_ENABLE_MODULE_RECOVERY)
+ list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_recovery.h")
+ endif()
+ if(SECP256K1_ENABLE_MODULE_EXTRAKEYS)
+ list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_extrakeys.h")
+ endif()
+ if(SECP256K1_ENABLE_MODULE_SCHNORRSIG)
+ list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h")
+ endif()
+ install(FILES ${${PROJECT_NAME}_headers}
+ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+ )
 
-install(EXPORT ${PROJECT_NAME}-targets
- FILE ${PROJECT_NAME}-targets.cmake
- NAMESPACE ${PROJECT_NAME}::
- DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
-)
+ install(EXPORT ${PROJECT_NAME}-targets
+  FILE ${PROJECT_NAME}-targets.cmake
+  NAMESPACE ${PROJECT_NAME}::
+  DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+ )
 
-include(CMakePackageConfigHelpers)
-configure_package_config_file(
- ${PROJECT_SOURCE_DIR}/cmake/config.cmake.in
- ${PROJECT_NAME}-config.cmake
- INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
- NO_SET_AND_CHECK_MACRO
-)
-write_basic_package_version_file(${PROJECT_NAME}-config-version.cmake
- COMPATIBILITY SameMajorVersion
-)
-install(
- FILES
- ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
- ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake
- DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+ include(CMakePackageConfigHelpers)
+ configure_package_config_file(
+ ${PROJECT_SOURCE_DIR}/cmake/config.cmake.in
+ ${PROJECT_NAME}-config.cmake
+ INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
+ NO_SET_AND_CHECK_MACRO
+ )
+ write_basic_package_version_file(${PROJECT_NAME}-config-version.cmake
+ COMPATIBILITY SameMajorVersion
+ )
+
+ install(
+ FILES
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
+ ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake
+ DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
 )
+endif()