add assimp submodule

1 files changed, 220 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/contrib/draco/cmake/compiler_flags.cmake b/src/mesh/assimp-master/contrib/draco/cmake/compiler_flags.cmake
new file mode 100644
index 0000000..8750e6f
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/draco/cmake/compiler_flags.cmake
@@ -0,0 +1,220 @@
+if(DRACO_CMAKE_COMPILER_FLAGS_CMAKE_)
+  return()
+endif()
+set(DRACO_CMAKE_COMPILER_FLAGS_CMAKE_ 1)
+
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
+include("${draco_root}/cmake/compiler_tests.cmake")
+
+# Strings used to cache failed C/CXX flags.
+set(DRACO_FAILED_C_FLAGS)
+set(DRACO_FAILED_CXX_FLAGS)
+
+# Checks C compiler for support of $c_flag. Adds $c_flag to $CMAKE_C_FLAGS when
+# the compile test passes. Caches $c_flag in $DRACO_FAILED_C_FLAGS when the test
+# fails.
+macro(add_c_flag_if_supported c_flag)
+  unset(C_FLAG_FOUND CACHE)
+  string(FIND "${CMAKE_C_FLAGS}" "${c_flag}" C_FLAG_FOUND)
+  unset(C_FLAG_FAILED CACHE)
+  string(FIND "${DRACO_FAILED_C_FLAGS}" "${c_flag}" C_FLAG_FAILED)
+
+  if(${C_FLAG_FOUND} EQUAL -1 AND ${C_FLAG_FAILED} EQUAL -1)
+    unset(C_FLAG_SUPPORTED CACHE)
+    message("Checking C compiler flag support for: " ${c_flag})
+    check_c_compiler_flag("${c_flag}" C_FLAG_SUPPORTED)
+    if(${C_FLAG_SUPPORTED})
+      set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${c_flag}" CACHE STRING "")
+    else()
+      set(DRACO_FAILED_C_FLAGS
+          "${DRACO_FAILED_C_FLAGS} ${c_flag}"
+          CACHE STRING "" FORCE)
+    endif()
+  endif()
+endmacro()
+
+# Checks C++ compiler for support of $cxx_flag. Adds $cxx_flag to
+# $CMAKE_CXX_FLAGS when the compile test passes. Caches $c_flag in
+# $DRACO_FAILED_CXX_FLAGS when the test fails.
+macro(add_cxx_flag_if_supported cxx_flag)
+  unset(CXX_FLAG_FOUND CACHE)
+  string(FIND "${CMAKE_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FOUND)
+  unset(CXX_FLAG_FAILED CACHE)
+  string(FIND "${DRACO_FAILED_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FAILED)
+
+  if(${CXX_FLAG_FOUND} EQUAL -1 AND ${CXX_FLAG_FAILED} EQUAL -1)
+    unset(CXX_FLAG_SUPPORTED CACHE)
+    message("Checking CXX compiler flag support for: " ${cxx_flag})
+    check_cxx_compiler_flag("${cxx_flag}" CXX_FLAG_SUPPORTED)
+    if(${CXX_FLAG_SUPPORTED})
+      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${cxx_flag}" CACHE STRING "")
+    else()
+      set(DRACO_FAILED_CXX_FLAGS
+          "${DRACO_FAILED_CXX_FLAGS} ${cxx_flag}"
+          CACHE STRING "" FORCE)
+    endif()
+  endif()
+endmacro()
+
+# Convenience method for adding a flag to both the C and C++ compiler command
+# lines.
+macro(add_compiler_flag_if_supported flag)
+  add_c_flag_if_supported(${flag})
+  add_cxx_flag_if_supported(${flag})
+endmacro()
+
+# Checks C compiler for support of $c_flag and terminates generation when
+# support is not present.
+macro(require_c_flag c_flag update_c_flags)
+  unset(C_FLAG_FOUND CACHE)
+  string(FIND "${CMAKE_C_FLAGS}" "${c_flag}" C_FLAG_FOUND)
+
+  if(${C_FLAG_FOUND} EQUAL -1)
+    unset(HAVE_C_FLAG CACHE)
+    message("Checking C compiler flag support for: " ${c_flag})
+    check_c_compiler_flag("${c_flag}" HAVE_C_FLAG)
+    if(NOT ${HAVE_C_FLAG})
+      message(
+        FATAL_ERROR "${PROJECT_NAME} requires support for C flag: ${c_flag}.")
+    endif()
+    if(${update_c_flags})
+      set(CMAKE_C_FLAGS "${c_flag} ${CMAKE_C_FLAGS}" CACHE STRING "" FORCE)
+    endif()
+  endif()
+endmacro()
+
+# Checks CXX compiler for support of $cxx_flag and terminates generation when
+# support is not present.
+macro(require_cxx_flag cxx_flag update_cxx_flags)
+  unset(CXX_FLAG_FOUND CACHE)
+  string(FIND "${CMAKE_CXX_FLAGS}" "${cxx_flag}" CXX_FLAG_FOUND)
+
+  if(${CXX_FLAG_FOUND} EQUAL -1)
+    unset(HAVE_CXX_FLAG CACHE)
+    message("Checking CXX compiler flag support for: " ${cxx_flag})
+    check_cxx_compiler_flag("${cxx_flag}" HAVE_CXX_FLAG)
+    if(NOT ${HAVE_CXX_FLAG})
+      message(
+        FATAL_ERROR
+          "${PROJECT_NAME} requires support for CXX flag: ${cxx_flag}.")
+    endif()
+    if(${update_cxx_flags})
+      set(CMAKE_CXX_FLAGS
+          "${cxx_flag} ${CMAKE_CXX_FLAGS}"
+          CACHE STRING "" FORCE)
+    endif()
+  endif()
+endmacro()
+
+# Checks for support of $flag by both the C and CXX compilers. Terminates
+# generation when support is not present in both compilers.
+macro(require_compiler_flag flag update_cmake_flags)
+  require_c_flag(${flag} ${update_cmake_flags})
+  require_cxx_flag(${flag} ${update_cmake_flags})
+endmacro()
+
+# Checks only non-MSVC targets for support of $c_flag and terminates generation
+# when support is not present.
+macro(require_c_flag_nomsvc c_flag update_c_flags)
+  if(NOT MSVC)
+    require_c_flag(${c_flag} ${update_c_flags})
+  endif()
+endmacro()
+
+# Checks only non-MSVC targets for support of $cxx_flag and terminates
+# generation when support is not present.
+macro(require_cxx_flag_nomsvc cxx_flag update_cxx_flags)
+  if(NOT MSVC)
+    require_cxx_flag(${cxx_flag} ${update_cxx_flags})
+  endif()
+endmacro()
+
+# Checks only non-MSVC targets for support of $flag by both the C and CXX
+# compilers. Terminates generation when support is not present in both
+# compilers.
+macro(require_compiler_flag_nomsvc flag update_cmake_flags)
+  require_c_flag_nomsvc(${flag} ${update_cmake_flags})
+  require_cxx_flag_nomsvc(${flag} ${update_cmake_flags})
+endmacro()
+
+# Adds $flag to assembler command line.
+macro(append_as_flag flag)
+  unset(AS_FLAG_FOUND CACHE)
+  string(FIND "${DRACO_AS_FLAGS}" "${flag}" AS_FLAG_FOUND)
+
+  if(${AS_FLAG_FOUND} EQUAL -1)
+    set(DRACO_AS_FLAGS "${DRACO_AS_FLAGS} ${flag}")
+  endif()
+endmacro()
+
+# Adds $flag to the C compiler command line.
+macro(append_c_flag flag)
+  unset(C_FLAG_FOUND CACHE)
+  string(FIND "${CMAKE_C_FLAGS}" "${flag}" C_FLAG_FOUND)
+
+  if(${C_FLAG_FOUND} EQUAL -1)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}")
+  endif()
+endmacro()
+
+# Adds $flag to the CXX compiler command line.
+macro(append_cxx_flag flag)
+  unset(CXX_FLAG_FOUND CACHE)
+  string(FIND "${CMAKE_CXX_FLAGS}" "${flag}" CXX_FLAG_FOUND)
+
+  if(${CXX_FLAG_FOUND} EQUAL -1)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}")
+  endif()
+endmacro()
+
+# Adds $flag to the C and CXX compiler command lines.
+macro(append_compiler_flag flag)
+  append_c_flag(${flag})
+  append_cxx_flag(${flag})
+endmacro()
+
+# Adds $flag to the executable linker command line.
+macro(append_exe_linker_flag flag)
+  unset(LINKER_FLAG_FOUND CACHE)
+  string(FIND "${CMAKE_EXE_LINKER_FLAGS}" "${flag}" LINKER_FLAG_FOUND)
+
+  if(${LINKER_FLAG_FOUND} EQUAL -1)
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${flag}")
+  endif()
+endmacro()
+
+# Adds $flag to the link flags for $target.
+function(append_link_flag_to_target target flags)
+  unset(target_link_flags)
+  get_target_property(target_link_flags ${target} LINK_FLAGS)
+
+  if(target_link_flags)
+    unset(link_flag_found)
+    string(FIND "${target_link_flags}" "${flags}" link_flag_found)
+
+    if(NOT ${link_flag_found} EQUAL -1)
+      return()
+    endif()
+
+    set(target_link_flags "${target_link_flags} ${flags}")
+  else()
+    set(target_link_flags "${flags}")
+  endif()
+
+  set_target_properties(${target} PROPERTIES LINK_FLAGS ${target_link_flags})
+endfunction()
+
+# Adds $flag to executable linker flags, and makes sure C/CXX builds still work.
+macro(require_linker_flag flag)
+  append_exe_linker_flag(${flag})
+
+  unset(c_passed)
+  draco_check_c_compiles("LINKER_FLAG_C_TEST(${flag})" "" c_passed)
+  unset(cxx_passed)
+  draco_check_cxx_compiles("LINKER_FLAG_CXX_TEST(${flag})" "" cxx_passed)
+
+  if(NOT c_passed OR NOT cxx_passed)
+    message(FATAL_ERROR "Linker flag test for ${flag} failed.")
+  endif()
+endmacro()