Add CMake build system

[folly.git] / CMake / FindLibEvent.cmake

diff --git a/CMake/FindLibEvent.cmake b/CMake/FindLibEvent.cmake
new file mode 100755 (executable)
index 0000000..eca43a4
--- /dev/null
+++ b/CMake/FindLibEvent.cmake
@@ -0,0 +1,37 @@
+# - Find LibEvent (a cross event library)
+# This module defines
+# LIBEVENT_INCLUDE_DIR, where to find LibEvent headers
+# LIBEVENT_LIB, LibEvent libraries
+# LibEvent_FOUND, If false, do not try to use libevent
+
+set(LibEvent_EXTRA_PREFIXES /usr/local /opt/local "$ENV{HOME}")
+foreach(prefix ${LibEvent_EXTRA_PREFIXES})
+  list(APPEND LibEvent_INCLUDE_PATHS "${prefix}/include")
+  list(APPEND LibEvent_LIB_PATHS "${prefix}/lib")
+endforeach()
+
+find_path(LIBEVENT_INCLUDE_DIR event.h PATHS ${LibEvent_INCLUDE_PATHS})
+find_library(LIBEVENT_LIB NAMES event PATHS ${LibEvent_LIB_PATHS})
+
+if (LIBEVENT_LIB AND LIBEVENT_INCLUDE_DIR)
+  set(LibEvent_FOUND TRUE)
+  set(LIBEVENT_LIB ${LIBEVENT_LIB})
+else ()
+  set(LibEvent_FOUND FALSE)
+endif ()
+
+if (LibEvent_FOUND)
+  if (NOT LibEvent_FIND_QUIETLY)
+    message(STATUS "Found libevent: ${LIBEVENT_LIB}")
+  endif ()
+else ()
+  if (LibEvent_FIND_REQUIRED)
+    message(FATAL_ERROR "Could NOT find libevent.")
+  endif ()
+  message(STATUS "libevent NOT found.")
+endif ()
+
+mark_as_advanced(
+    LIBEVENT_LIB
+    LIBEVENT_INCLUDE_DIR
+  )