From c4f61c3b26e329a4fe992a5c06bcc5b2b1718f2c Mon Sep 17 00:00:00 2001
From: Takayuki Tanabe <thawk105@gmail.com>
Date: Mon, 3 Aug 2020 22:39:57 +0900
Subject: [PATCH] add cmake/files.

---
 cmake/CompileOptions.cmake | 33 +++++++++++++++++++++++++++++++++
 cmake/Findgflags.cmake     | 24 ++++++++++++++++++++++++
 cmake/Findglog.cmake       | 24 ++++++++++++++++++++++++
 3 files changed, 81 insertions(+)
 create mode 100644 cmake/CompileOptions.cmake
 create mode 100644 cmake/Findgflags.cmake
 create mode 100644 cmake/Findglog.cmake

diff --git a/cmake/CompileOptions.cmake b/cmake/CompileOptions.cmake
new file mode 100644
index 00000000..3b24c329
--- /dev/null
+++ b/cmake/CompileOptions.cmake
@@ -0,0 +1,33 @@
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_EXTENSIONS OFF)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-omit-frame-pointer")
+set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -fno-omit-frame-pointer")
+
+set(sanitizers "address")
+if (ENABLE_UB_SANITIZER)
+    # NOTE: UB check requires instrumented libstdc++
+    set(sanitizers "${sanitizers},undefined")
+endif ()
+if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+    # do nothing for gcc
+elseif (CMAKE_CXX_COMPILER_ID MATCHES "^(Clang|AppleClang)$")
+    set(sanitizers "${sanitizers},nullability")
+else ()
+    message(FATAL_ERROR "unsupported compiler ${CMAKE_CXX_COMPILER_ID}")
+endif ()
+
+if (ENABLE_SANITIZER)
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fsanitize=${sanitizers}")
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-sanitize=alignment")
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-sanitize-recover=${sanitizers}")
+endif ()
+if (ENABLE_COVERAGE)
+    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} --coverage")
+endif ()
+
+function(set_compile_options target_name)
+    target_compile_options(${target_name}
+            PRIVATE -Wall -Wextra -Werror)
+endfunction(set_compile_options)
diff --git a/cmake/Findgflags.cmake b/cmake/Findgflags.cmake
new file mode 100644
index 00000000..f0af39a9
--- /dev/null
+++ b/cmake/Findgflags.cmake
@@ -0,0 +1,24 @@
+if(TARGET gflags::gflags)
+    return()
+endif()
+
+find_library(gflags_LIBRARY_FILE NAMES gflags)
+find_path(gflags_INCLUDE_DIR NAMES gflags/gflags.h)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(gflags DEFAULT_MSG
+    gflags_LIBRARY_FILE
+    gflags_INCLUDE_DIR)
+
+if(gflags_LIBRARY_FILE AND gflags_INCLUDE_DIR)
+    set(gflags_FOUND ON)
+    add_library(gflags::gflags SHARED IMPORTED)
+    set_target_properties(gflags::gflags PROPERTIES
+        IMPORTED_LOCATION "${gflags_LIBRARY_FILE}"
+        INTERFACE_INCLUDE_DIRECTORIES "${gflags_INCLUDE_DIR}")
+else()
+    set(gflags_FOUND OFF)
+endif()
+
+unset(gflags_LIBRARY_FILE CACHE)
+unset(gflags_INCLUDE_DIR CACHE)
diff --git a/cmake/Findglog.cmake b/cmake/Findglog.cmake
new file mode 100644
index 00000000..4b35db66
--- /dev/null
+++ b/cmake/Findglog.cmake
@@ -0,0 +1,24 @@
+if(TARGET glog::glog)
+    return()
+endif()
+
+find_library(glog_LIBRARY_FILE NAMES glog)
+find_path(glog_INCLUDE_DIR NAMES glog/logging.h)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(glog DEFAULT_MSG
+    glog_LIBRARY_FILE
+    glog_INCLUDE_DIR)
+
+if(glog_LIBRARY_FILE AND glog_INCLUDE_DIR)
+    set(glog_FOUND ON)
+    add_library(glog::glog SHARED IMPORTED)
+    set_target_properties(glog::glog PROPERTIES
+        IMPORTED_LOCATION "${glog_LIBRARY_FILE}"
+        INTERFACE_INCLUDE_DIRECTORIES "${glog_INCLUDE_DIR}")
+else()
+    set(glog_FOUND OFF)
+endif()
+
+unset(glog_LIBRARY_FILE CACHE)
+unset(glog_INCLUDE_DIR CACHE)