Add tinygltf as a bext component

.gitmodules

@@ -317,3 +317,8 @@
 	url = https://github.com/BRL-CAD/Clipper2.git
 	branch = RELEASE
         ignore = dirty
+[submodule "tinygltf/tinygltf"]
+	path = tinygltf/tinygltf
+	url = https://github.com/BRL-CAD/tinygltf.git
+	branch = release
+        ignore = dirty

dependencies.cmake

@@ -214,6 +214,10 @@ add_project(proj GROUPS "GDAL")
 # https://gdal.org
 add_project(gdal GROUPS "GDAL")
 
+# tinygltf - tiny glTF library(loader/saver)
+# https://github.com/syoyo/tinygltf
+add_project(tinygltf GROUPS "BRLCAD")
+
 # pugixml - a light-weight C++ XML processing library
 # https://pugixml.org/
 add_project(pugixml GROUPS "BRLCAD;APPLESEED")

tinygltf/CMakeLists.txt

@@ -0,0 +1,61 @@
+# Decide if we're using tinygltf
+cad_enable(TINYGLTF "librt;libgcv")
+
+unset(ENGEN_BUNDLED CACHE)
+
+if (NOT ENABLE_TINYGLTF AND NOT DISABLE_TINYGLTF)
+
+  find_package(tinygltf NO_MODULE)
+
+  if (NOT TARGET tinygltf::tinygltf)
+    set(ENABLE_TINYGLTF "ON" CACHE BOOL "Enable tinygltf build")
+  endif (NOT TARGET tinygltf::tinygltf)
+
+endif (NOT ENABLE_TINYGLTF AND NOT DISABLE_TINYGLTF)
+
+set(ENABLE_TINYGLTF "${ENABLE_TINYGLTF}" CACHE BOOL "Enable tinygltf build")
+
+# Decision made
+
+if (ENABLE_TINYGLTF)
+
+  git_submodule_init(tinygltf CMakeLists.txt)
+
+  RegisterDeps(TINYGLTF)
+
+  ExternalProject_Add(TINYGLTF_BLD
+    URL "${CMAKE_CURRENT_SOURCE_DIR}/tinygltf"
+    BUILD_ALWAYS ${EXT_BUILD_ALWAYS} ${LOG_OPTS}
+    #PATCH_COMMAND ${PATCH_EXECUTABLE};-E;-p1;${PATCH_OPTIONS};-i;${CMAKE_CURRENT_SOURCE_DIR}/tinygltf.patch
+    CMAKE_ARGS
+    -DTINYGLTF_BUILD_LOADER_EXAMPLE=OFF
+    ${BUILD_TYPE_SPECIFIER}
+    -DBIN_DIR=${BIN_DIR}
+    -DLIB_DIR=${LIB_DIR}
+    -DBUILD_STATIC_LIBS=${BUILD_STATIC_LIBS}
+    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
+    -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
+    -DCMAKE_Fortran_COMPILER=OFF
+    -DCMAKE_INSTALL_PREFIX=${CMAKE_BUNDLE_INSTALL_PREFIX}
+    -DCMAKE_INSTALL_LIBDIR:PATH=${LIB_DIR}
+    -DCMAKE_INSTALL_RPATH=${CMAKE_BUNDLE_INSTALL_PREFIX}/${LIB_DIR}
+    LOG_CONFIGURE ${EXT_BUILD_QUIET}
+    LOG_BUILD ${EXT_BUILD_QUIET}
+    LOG_INSTALL ${EXT_BUILD_QUIET}
+    LOG_OUTPUT_ON_FAILURE ${EXT_BUILD_QUIET}
+    STEP_TARGETS install
+    )
+
+  TargetInstallDeps(TINYGLTF TINYGLTF_DEPENDS)
+
+  set(TINYGLTF_BUNDLED TRUE CACHE BOOL "tinygltf bundle flag")
+
+endif (ENABLE_TINYGLTF)
+
+# Local Variables:
+# tab-width: 8
+# mode: cmake
+# indent-tabs-mode: t
+# End:
+# ex: shiftwidth=2 tabstop=8
+

tinygltf/tinygltf.deps

@@ -0,0 +1,2 @@
+PATCH
+