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# - Find X11 installation
# Try to find X11 on UNIX systems. The following values are defined
# X11_FOUND - True if X11 is available
# X11_INCLUDE_DIR - include directories to use X11
# X11_LIBRARIES - link against these to use X11
IF (UNIX)
SET(X11_FOUND 0)
SET(X11_INC_SEARCH_PATH
/usr/X11R6/include
/usr/local/include
/usr/include/X11
/usr/openwin/include
/usr/openwin/share/include
/opt/graphics/OpenGL/include
/usr/include
)
SET(X11_LIB_SEARCH_PATH
/usr/X11R6/lib
/usr/local/lib
/usr/openwin/lib
/usr/lib
)
FIND_PATH(X11_X11_INCLUDE_PATH X11/X.h ${X11_INC_SEARCH_PATH})
FIND_PATH(X11_Xlib_INCLUDE_PATH X11/Xlib.h ${X11_INC_SEARCH_PATH})
FIND_PATH(X11_Xutil_INCLUDE_PATH X11/Xutil.h ${X11_INC_SEARCH_PATH})
FIND_LIBRARY(X11_X11_LIB X11 ${X11_LIB_SEARCH_PATH})
FIND_LIBRARY(X11_Xext_LIB Xext ${X11_LIB_SEARCH_PATH})
IF(X11_X11_INCLUDE_PATH)
SET(X11_INCLUDE_DIR ${X11_INCLUDE_DIR} ${X11_X11_INCLUDE_PATH})
ENDIF(X11_X11_INCLUDE_PATH)
IF(X11_Xlib_INCLUDE_PATH)
SET(X11_INCLUDE_DIR ${X11_INCLUDE_DIR} ${X11_Xlib_INCLUDE_PATH})
ENDIF(X11_Xlib_INCLUDE_PATH)
IF(X11_Xutil_INCLUDE_PATH)
SET(X11_INCLUDE_DIR ${X11_INCLUDE_DIR} ${X11_Xutil_INCLUDE_PATH})
ENDIF(X11_Xutil_INCLUDE_PATH)
IF(X11_X11_LIB)
SET(X11_LIBRARIES ${X11_LIBRARIES} ${X11_X11_LIB})
ENDIF(X11_X11_LIB)
IF(X11_Xext_LIB)
SET(X11_LIBRARIES ${X11_LIBRARIES} ${X11_Xext_LIB})
ENDIF(X11_Xext_LIB)
# Deprecated variable for backwards compatibility with CMake 1.4
IF(X11_X11_INCLUDE_PATH)
IF(X11_LIBRARIES)
SET(X11_FOUND 1)
ENDIF(X11_LIBRARIES)
ENDIF(X11_X11_INCLUDE_PATH)
SET(X11_LIBRARY_DIR "")
IF(X11_X11_LIB)
GET_FILENAME_COMPONENT(X11_LIBRARY_DIR ${X11_X11_LIB} PATH)
ENDIF(X11_X11_LIB)
IF(X11_FOUND)
INCLUDE(CheckFunctionExists)
INCLUDE(CheckLibraryExists)
# Translated from an autoconf-generated configure script.
# See libs.m4 in autoconf's m4 directory.
IF($ENV{ISC} MATCHES "^yes$")
SET(X11_X_EXTRA_LIBS -lnsl_s -linet)
ELSE($ENV{ISC} MATCHES "^yes$")
SET(X11_X_EXTRA_LIBS "")
# See if XOpenDisplay in X11 works by itself.
CHECK_LIBRARY_EXISTS("${X11_LIBRARIES}" "XOpenDisplay" "${X11_LIBRARY_DIR}" X11_LIB_X11_SOLO)
IF(NOT X11_LIB_X11_SOLO)
# Find library needed for dnet_ntoa.
CHECK_LIBRARY_EXISTS("dnet" "dnet_ntoa" "" X11_LIB_DNET_HAS_DNET_NTOA)
IF (X11_LIB_DNET_HAS_DNET_NTOA)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -ldnet)
ELSE (X11_LIB_DNET_HAS_DNET_NTOA)
CHECK_LIBRARY_EXISTS("dnet_stub" "dnet_ntoa" "" X11_LIB_DNET_STUB_HAS_DNET_NTOA)
IF (X11_LIB_DNET_STUB_HAS_DNET_NTOA)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -ldnet_stub)
ENDIF (X11_LIB_DNET_STUB_HAS_DNET_NTOA)
ENDIF (X11_LIB_DNET_HAS_DNET_NTOA)
ENDIF(NOT X11_LIB_X11_SOLO)
# Find library needed for gethostbyname.
CHECK_FUNCTION_EXISTS("gethostbyname" CMAKE_HAVE_GETHOSTBYNAME)
IF(NOT CMAKE_HAVE_GETHOSTBYNAME)
CHECK_LIBRARY_EXISTS("nsl" "gethostbyname" "" CMAKE_LIB_NSL_HAS_GETHOSTBYNAME)
IF (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lnsl)
ELSE (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME)
CHECK_LIBRARY_EXISTS("bsd" "gethostbyname" "" CMAKE_LIB_BSD_HAS_GETHOSTBYNAME)
IF (CMAKE_LIB_BSD_HAS_GETHOSTBYNAME)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lbsd)
ENDIF (CMAKE_LIB_BSD_HAS_GETHOSTBYNAME)
ENDIF (CMAKE_LIB_NSL_HAS_GETHOSTBYNAME)
ENDIF(NOT CMAKE_HAVE_GETHOSTBYNAME)
# Find library needed for connect.
CHECK_FUNCTION_EXISTS("connect" CMAKE_HAVE_CONNECT)
IF(NOT CMAKE_HAVE_CONNECT)
CHECK_LIBRARY_EXISTS("socket" "connect" "" CMAKE_LIB_SOCKET_HAS_CONNECT)
IF (CMAKE_LIB_SOCKET_HAS_CONNECT)
SET (X11_X_EXTRA_LIBS -lsocket ${X11_X_EXTRA_LIBS})
ENDIF (CMAKE_LIB_SOCKET_HAS_CONNECT)
ENDIF(NOT CMAKE_HAVE_CONNECT)
# Find library needed for remove.
CHECK_FUNCTION_EXISTS("remove" CMAKE_HAVE_REMOVE)
IF(NOT CMAKE_HAVE_REMOVE)
CHECK_LIBRARY_EXISTS("posix" "remove" "" CMAKE_LIB_POSIX_HAS_REMOVE)
IF (CMAKE_LIB_POSIX_HAS_REMOVE)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lposix)
ENDIF (CMAKE_LIB_POSIX_HAS_REMOVE)
ENDIF(NOT CMAKE_HAVE_REMOVE)
# Find library needed for shmat.
CHECK_FUNCTION_EXISTS("shmat" CMAKE_HAVE_SHMAT)
IF(NOT CMAKE_HAVE_SHMAT)
CHECK_LIBRARY_EXISTS("ipc" "shmat" "" CMAKE_LIB_IPS_HAS_SHMAT)
IF (CMAKE_LIB_IPS_HAS_SHMAT)
SET (X11_X_EXTRA_LIBS ${X11_X_EXTRA_LIBS} -lipc)
ENDIF (CMAKE_LIB_IPS_HAS_SHMAT)
ENDIF(NOT CMAKE_HAVE_SHMAT)
ENDIF($ENV{ISC} MATCHES "^yes$")
CHECK_LIBRARY_EXISTS("ICE" "IceConnectionNumber" "${X11_LIBRARY_DIR}"
CMAKE_LIB_ICE_HAS_ICECONNECTIONNUMBER)
IF(CMAKE_LIB_ICE_HAS_ICECONNECTIONNUMBER)
SET (X11_X_PRE_LIBS -lSM -lICE)
ENDIF(CMAKE_LIB_ICE_HAS_ICECONNECTIONNUMBER)
# Build the final list of libraries.
SET (X11_LIBRARIES ${X11_X_PRE_LIBS} ${X11_LIBRARIES} ${X11_X_EXTRA_LIBS})
ENDIF(X11_FOUND)
MARK_AS_ADVANCED(
X11_X11_INCLUDE_PATH
X11_X11_LIB
X11_Xext_LIB
X11_Xlib_INCLUDE_PATH
X11_Xutil_INCLUDE_PATH
X11_LIBRARIES
)
ENDIF (UNIX)
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