cmake: Add option to disable install

CMakeLists.txt

@@ -9,6 +9,7 @@ if(TARGET evmc)
     return()
 endif()
 
+option(EVMC_INSTALL "Enable EVMC installation (e.g. make install)" ON)
 option(EVMC_TESTING "Build EVMC examples, tests and test tools (i.e. everything)" OFF)
 option(EVMC_TEST_TOOLS "Build EVMC test tools" ${EVMC_TESTING})
 if(EVMC_TESTING OR EVMC_TEST_TOOLS)
@@ -44,9 +45,6 @@ set(include_dir ${PROJECT_SOURCE_DIR}/include)
 add_library(evmc INTERFACE)
 add_library(evmc::evmc ALIAS evmc)
 target_include_directories(evmc INTERFACE $<BUILD_INTERFACE:${include_dir}>$<INSTALL_INTERFACE:include>)
-install(TARGETS evmc EXPORT evmcTargets)
-
-install(DIRECTORY include/evmc DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 
 add_subdirectory(lib)
 
@@ -70,6 +68,10 @@ configure_package_config_file(
     INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/evmc
 )
 
+if(EVMC_INSTALL)
+    install(TARGETS evmc EXPORT evmcTargets)
+    install(DIRECTORY include/evmc DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+
     install(
         EXPORT evmcTargets
         NAMESPACE evmc::
@@ -82,6 +84,7 @@ install(
         cmake/EVMC.cmake
         DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/evmc
     )
+endif()
 
 if(WIN32)
     set(CPACK_GENERATOR ZIP)

examples/CMakeLists.txt

@@ -29,9 +29,10 @@ set_source_files_properties(example_vm.c PROPERTIES COMPILE_DEFINITIONS PROJECT_
 add_executable(evmc-example example.c)
 target_link_libraries(evmc-example PRIVATE evmc-example-host evmc-example-vm evmc)
 
-
+if(EVMC_INSTALL)
     install(TARGETS evmc-example-vm
         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
     )
+endif()

lib/instructions/CMakeLists.txt

@@ -13,4 +13,6 @@ add_library(evmc::instructions ALIAS instructions)
 set_target_properties(instructions PROPERTIES OUTPUT_NAME evmc-instructions)
 target_include_directories(instructions PUBLIC $<BUILD_INTERFACE:${include_dir}>$<INSTALL_INTERFACE:include>)
 
+if(EVMC_INSTALL)
     install(TARGETS instructions EXPORT evmcTargets DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()

lib/loader/CMakeLists.txt

@@ -18,4 +18,6 @@ target_include_directories(loader PUBLIC
 )
 target_link_libraries(loader INTERFACE ${CMAKE_DL_LIBS})
 
+if(EVMC_INSTALL)
     install(TARGETS loader EXPORT evmcTargets DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()

test/vmtester/CMakeLists.txt

@@ -12,7 +12,9 @@ set_source_files_properties(vmtester.cpp PROPERTIES COMPILE_DEFINITIONS PROJECT_
 add_executable(evmc::evmc-vmtester ALIAS evmc-vmtester)
 
 
+if(EVMC_INSTALL)
     install(TARGETS evmc-vmtester EXPORT evmcTargets RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+endif()
 
 set(prefix ${PROJECT_NAME}/vmtester)