Adding support for CMAKE (#62)

* Adding support for CMAKE.

1 files changed, 80 insertions, 0 deletions

diff --git a/cmake/FindReadline.cmake b/cmake/FindReadline.cmake
new file mode 100644
index 0000000..95bb942
--- /dev/null
+++ b/cmake/FindReadline.cmake
@@ -0,0 +1,80 @@
+# - Find the readline library
+# This module defines
+#  READLINE_INCLUDE_DIR, path to readline/readline.h, etc.
+#  READLINE_LIBRARIES, the libraries required to use READLINE.
+#  READLINE_FOUND, If false, do not try to use READLINE.
+# also defined, but not for general use are
+# READLINE_readline_LIBRARY, where to find the READLINE library.
+# READLINE_ncurses_LIBRARY, where to find the ncurses library [might not be defined]
+
+# Apple readline does not support readline hooks
+# So we look for another one by default
+IF(APPLE)
+  FIND_PATH(READLINE_INCLUDE_DIR NAMES readline/readline.h PATHS
+    /sw/include
+    /opt/local/include
+    /opt/include
+    /usr/local/include
+    /usr/include/
+    NO_DEFAULT_PATH
+    )
+ENDIF(APPLE)
+FIND_PATH(READLINE_INCLUDE_DIR NAMES readline/readline.h)
+
+
+# Apple readline does not support readline hooks
+# So we look for another one by default
+IF(APPLE)
+  FIND_LIBRARY(READLINE_readline_LIBRARY NAMES readline PATHS
+    /sw/lib
+    /opt/local/lib
+    /opt/lib
+    /usr/local/lib
+    /usr/lib
+    NO_DEFAULT_PATH
+    )
+ENDIF(APPLE)
+FIND_LIBRARY(READLINE_readline_LIBRARY NAMES readline)
+
+# Sometimes readline really needs ncurses
+IF(APPLE)
+  FIND_LIBRARY(READLINE_ncurses_LIBRARY NAMES ncurses PATHS
+    /sw/lib
+    /opt/local/lib
+    /opt/lib
+    /usr/local/lib
+    /usr/lib
+    NO_DEFAULT_PATH
+    )
+ENDIF(APPLE)
+FIND_LIBRARY(READLINE_ncurses_LIBRARY NAMES ncurses)
+
+MARK_AS_ADVANCED(
+  READLINE_INCLUDE_DIR
+  READLINE_readline_LIBRARY
+  READLINE_ncurses_LIBRARY
+  )
+
+SET( READLINE_FOUND "NO" )
+IF(READLINE_INCLUDE_DIR)
+  IF(READLINE_readline_LIBRARY)
+    SET( READLINE_FOUND "YES" )
+    SET( READLINE_LIBRARIES
+      ${READLINE_readline_LIBRARY} 
+      )
+
+    # some readline libraries depend on ncurses
+    IF(READLINE_ncurses_LIBRARY)
+      SET(READLINE_LIBRARIES ${READLINE_LIBRARIES} ${READLINE_ncurses_LIBRARY})
+    ENDIF(READLINE_ncurses_LIBRARY)
+
+  ENDIF(READLINE_readline_LIBRARY)
+ENDIF(READLINE_INCLUDE_DIR)
+
+IF(READLINE_FOUND)
+  MESSAGE(STATUS "Found readline library")
+ELSE(READLINE_FOUND)
+  IF(READLINE_FIND_REQUIRED)
+    MESSAGE(FATAL_ERROR "Could not find readline -- please give some paths to CMake")
+  ENDIF(READLINE_FIND_REQUIRED)
+ENDIF(READLINE_FOUND)