Hi,
upon running cmake -G Ninja for one of the C++ examples to the Emscripten folder, I get this error:
CMake Warning at CMakeLists.txt:17 (find_package):
By not providing "FindVTK.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "VTK", but
CMake did not find one.
Could not find a package configuration file provided by "VTK" with any of
the following names:
VTKConfig.cmake
vtk-config.cmake
Add the installation prefix of "VTK" to CMAKE_PREFIX_PATH or set "VTK_DIR"
to a directory containing one of the above files. If "VTK" provides a
separate development package or SDK, be sure it has been installed.
Skipping example:
-- Configuring done
-- Generating done
-- Build files have been written to: /work/build-CylinderExample
here’s the cmakelists:
cmake_minimum_required(VERSION 3.13)
project(Cone)
# -----------------------------------------------------------------------------
# EMSCRIPTEN only
# -----------------------------------------------------------------------------
if (NOT EMSCRIPTEN)
message("Skipping example: This needs to run inside an Emscripten build environment")
return ()
endif ()
# -----------------------------------------------------------------------------
# Handle VTK dependency
# -----------------------------------------------------------------------------
find_package(VTK
COMPONENTS
FiltersSources # VTK pipeline
InteractionStyle # Mouse handling
RenderingOpenGL2 # For Rendering
RenderingUI # For SDL2 Window
)
if (NOT VTK_FOUND)
message("Skipping example: ${VTK_NOT_FOUND_MESSAGE}")
return ()
endif ()
# -----------------------------------------------------------------------------
# WebAssembly build options
# -----------------------------------------------------------------------------
set(emscripten_options)
list(APPEND emscripten_options
"--bind"
"-g3"
"SHELL:-s EXPORT_NAME=vtkApp"
"SHELL:-s ALLOW_MEMORY_GROWTH=1"
"SHELL:-s DEMANGLE_SUPPORT=1"
"SHELL:-s EMULATE_FUNCTION_POINTER_CASTS=0"
"SHELL:-s ERROR_ON_UNDEFINED_SYMBOLS=0"
"SHELL:-s MODULARIZE=1"
"SHELL:-s USE_PTHREADS=0"
"SHELL:-s WASM=1"
)
# -----------------------------------------------------------------------------
# Build options
# -----------------------------------------------------------------------------
set(OPTIMIZE "BEST" CACHE STRING "Emscripten optimization")
set_property(CACHE OPTIMIZE PROPERTY
STRINGS
NO_OPTIMIZATION # -O0
LITTLE # -O1
MORE # -O2
BEST # -O3
SMALL # -Os
SMALLEST # -Oz
SMALLEST_WITH_CLOSURE # -Oz --closure 1
)
if(OPTIMIZE STREQUAL "NO_OPTIMIZATION")
# Cone.js 659K
# Cone.wasm 4.9M
# time => 4 minutes 3 seconds
list(APPEND emscripten_options
"-Oz"
)
elseif(OPTIMIZE STREQUAL "LITTLE")
# Cone.js 529K
# Cone.wasm 5.9M
list(APPEND emscripten_options
"-O1"
)
elseif(OPTIMIZE STREQUAL "MORE")
# Cone.js 529K
# Cone.wasm 5.3M
list(APPEND emscripten_options
"-O2"
)
elseif(OPTIMIZE STREQUAL "BEST")
# Cone.js 529K
# Cone.wasm 4.9M
# time => 4 minutes 7 seconds
list(APPEND emscripten_options
"-O3"
)
elseif(OPTIMIZE STREQUAL "SMALL")
# Cone.js 529K
# Cone.wasm 4.9M
list(APPEND emscripten_options
"-Os"
)
elseif(OPTIMIZE STREQUAL "SMALLEST")
# Cone.js 659K
# Cone.wasm 4.9M
list(APPEND emscripten_options
"-Oz"
)
elseif(OPTIMIZE STREQUAL "SMALLEST_WITH_CLOSURE")
# Cone.js 659K
# Cone.wasm 4.9M
list(APPEND emscripten_options
"-Oz"
"SHELL:--closure 1"
)
endif()
# -----------------------------------------------------------------------------
# Compile example code
# -----------------------------------------------------------------------------
add_executable(Cone Cone.cxx)
target_link_libraries(Cone
PRIVATE
VTK::FiltersSources
VTK::InteractionStyle
VTK::RenderingOpenGL2
VTK::RenderingUI
)
target_compile_options(Cone
PUBLIC
${emscripten_options}
)
target_link_options(Cone
PUBLIC
${emscripten_options}
)
# -----------------------------------------------------------------------------
# VTK modules initialization
# -----------------------------------------------------------------------------
vtk_module_autoinit(
TARGETS Cone
MODULES ${VTK_LIBRARIES}
)
# -----------------------------------------------------------------------------
# Copy HTML to build directory
# -----------------------------------------------------------------------------
add_custom_command(
TARGET Cone
POST_BUILD
COMMAND
${CMAKE_COMMAND} -E copy_if_different
"${CMAKE_CURRENT_SOURCE_DIR}/index.html"
$<TARGET_FILE_DIR:Cone>
)
As I get from the error, it should be something with the CMakeLists. Is there any points about it?