Commit b382701e authored by David Partyka's avatar David Partyka

Add macros to create a forwarding executables.

We will make use of it to create a forwarding vtkpython executable on linux.

Change-Id: I8804112ef30e1a6cd81442574b0a5b932d84c539
parent a6c2dc72
#----------------------------------------------------------------------------
# Function for adding an executable with support for shared forwarding.
# Typically, one just uses ADD_EXECUTABLE to add an executable target. However
# on linuxes when rpath is off, and shared libararies are on, to over come the
# need for setting the LD_LIBRARY_PATH, we use shared-forwarding. This macro
# makes it easier to employ shared forwarding if needed.
# ARGUMENTS:
# out_real_exe_suffix -- (out) suffix to be added to the exe-target to locate the
# real executable target when shared forwarding is employed.
# This is empty when shared forwarding is not needed.
# exe_name -- (in) exe target name i.e. the first argument to
# ADD_EXECUTABLE.
# Any remaining arguments are simply passed on to the ADD_EXECUTABLE call.
# While writing install rules for this executable. One typically does the
# following.
# INSTALL(TARGETS exe_name
# DESTINATION "bin"
# COMPONENT Runtime)
# IF (vtk_exe_suffix)
# # Shared forwarding enabled.
# INSTALL(TARGETS exe_name${out_real_exe_suffix}
# DESTINATION "lib"
# COMPONENT Runtime)
# ENDIF (vtk_exe_suffix)
#----------------------------------------------------------------------------
FUNCTION (vtk_add_executable_with_forwarding
out_real_exe_suffix
exe_name
)
if (NOT DEFINED VTK_INSTALL_LIB_DIR_CM24)
MESSAGE(FATAL_ERROR
"VTK_INSTALL_LIB_DIR_CM24 variable must be set before calling add_executable_with_forwarding"
)
endif (NOT DEFINED VTK_INSTALL_LIB_DIR_CM24)
add_executable_with_forwarding2(out_var "" ""
${VTK_INSTALL_LIB_DIR_CM24}
${exe_name} ${ARGN})
set (${out_real_exe_suffix} "${out_var}" PARENT_SCOPE)
ENDFUNCTION(add_executable_with_forwarding)
#----------------------------------------------------------------------------
FUNCTION (vtk_add_executable_with_forwarding2
out_real_exe_suffix
extra_build_dirs
extra_install_dirs
install_lib_dir
exe_name
)
SET(mac_bundle)
IF (APPLE)
set (largs ${ARGN})
LIST (FIND largs "MACOSX_BUNDLE" mac_bundle_index)
IF (mac_bundle_index GREATER -1)
SET (mac_bundle TRUE)
ENDIF (mac_bundle_index GREATER -1)
ENDIF (APPLE)
SET(VTK_EXE_SUFFIX)
IF (BUILD_SHARED_LIBS AND NOT mac_bundle)
IF(NOT WIN32)
SET(exe_output_path ${EXECUTABLE_OUTPUT_PATH})
IF (NOT EXECUTABLE_OUTPUT_PATH)
SET (exe_output_path ${CMAKE_BINARY_DIR})
ENDIF (NOT EXECUTABLE_OUTPUT_PATH)
SET(VTK_EXE_SUFFIX -real)
SET(VTK_FORWARD_DIR_BUILD "${exe_output_path}")
SET(VTK_FORWARD_DIR_INSTALL "../${install_lib_dir}")
SET(VTK_FORWARD_PATH_BUILD "\"${VTK_FORWARD_DIR_BUILD}\"")
SET(VTK_FORWARD_PATH_INSTALL "\"${VTK_FORWARD_DIR_INSTALL}\"")
FOREACH(dir ${extra_build_dirs})
SET (VTK_FORWARD_PATH_BUILD "${VTK_FORWARD_PATH_BUILD},\"${dir}\"")
ENDFOREACH(dir)
FOREACH(dir ${extra_install_dirs})
SET (VTK_FORWARD_PATH_INSTALL "${VTK_FORWARD_PATH_INSTALL},\"${dir}\"")
ENDFOREACH(dir)
SET(VTK_FORWARD_EXE ${exe_name})
CONFIGURE_FILE(
${ParaView_CMAKE_DIR}/pv-forward.c.in
${CMAKE_CURRENT_BINARY_DIR}/${exe_name}-forward.c
@ONLY IMMEDIATE)
add_executable(${exe_name}
${CMAKE_CURRENT_BINARY_DIR}/${exe_name}-forward.c)
set_target_properties(${exe_name} PROPERTIES
RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/launcher)
ADD_DEPENDENCIES(${exe_name} ${exe_name}${VTK_EXE_SUFFIX})
ENDIF(NOT WIN32)
ENDIF (BUILD_SHARED_LIBS AND NOT mac_bundle)
add_executable(${exe_name}${VTK_EXE_SUFFIX} ${ARGN})
set_target_properties(${exe_name}${VTK_EXE_SUFFIX} PROPERTIES
OUTPUT_NAME ${exe_name})
set (${out_real_exe_suffix} "${VTK_EXE_SUFFIX}" PARENT_SCOPE)
ENDFUNCTION (add_executable_with_forwarding2)
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