new build scripts

cmake/Config.cmake.in

@@ -0,0 +1,6 @@
+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+find_dependency(Threads REQUIRED)
+
+include("${CMAKE_CURRENT_LIST_DIR}/promise.hpp-targets.cmake")

cmake/EnableASan.cmake

@@ -0,0 +1,16 @@
+# https://clang.llvm.org/docs/AddressSanitizer.html
+
+add_library(${PROJECT_NAME}.enable_asan INTERFACE)
+add_library(${PROJECT_NAME}::enable_asan ALIAS ${PROJECT_NAME}.enable_asan)
+
+target_compile_options(${PROJECT_NAME}.enable_asan INTERFACE
+    -fsanitize=address
+    -fno-omit-frame-pointer
+    -fsanitize-address-use-after-scope
+    -fsanitize-address-use-after-return=always)
+
+target_link_options(${PROJECT_NAME}.enable_asan INTERFACE
+    -fsanitize=address
+    -fno-omit-frame-pointer
+    -fsanitize-address-use-after-scope
+    -fsanitize-address-use-after-return=always)

cmake/EnableGCov.cmake

@@ -0,0 +1,10 @@
+# https://clang.llvm.org/docs/SourceBasedCodeCoverage.html
+
+add_library(${PROJECT_NAME}.enable_gcov INTERFACE)
+add_library(${PROJECT_NAME}::enable_gcov ALIAS ${PROJECT_NAME}.enable_gcov)
+
+target_compile_options(${PROJECT_NAME}.enable_gcov INTERFACE
+    --coverage)
+
+target_link_options(${PROJECT_NAME}.enable_gcov INTERFACE
+    --coverage)

cmake/EnableUBSan.cmake

@@ -0,0 +1,12 @@
+# https://clang.llvm.org/docs/UndefinedBehaviorSanitizer.html
+
+add_library(${PROJECT_NAME}.enable_ubsan INTERFACE)
+add_library(${PROJECT_NAME}::enable_ubsan ALIAS ${PROJECT_NAME}.enable_ubsan)
+
+target_compile_options(${PROJECT_NAME}.enable_ubsan INTERFACE
+    -fsanitize=undefined
+    -fno-omit-frame-pointer)
+
+target_link_options(${PROJECT_NAME}.enable_ubsan INTERFACE
+    -fsanitize=undefined
+    -fno-omit-frame-pointer)