First Commit

3rdparty/shaderc/cmake/setup_build.cmake

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+# Copyright 2020 The Shaderc Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+if(NOT COMMAND find_host_package)
+  macro(find_host_package)
+    find_package(${ARGN})
+  endmacro()
+endif()
+if(NOT COMMAND find_host_program)
+  macro(find_host_program)
+    find_program(${ARGN})
+  endmacro()
+endif()
+
+# Find asciidoctor; see shaderc_add_asciidoc() from utils.cmake for
+# adding documents.
+find_program(ASCIIDOCTOR_EXE NAMES asciidoctor)
+if (NOT ASCIIDOCTOR_EXE)
+  message(STATUS "asciidoctor was not found - no documentation will be"
+          " generated")
+endif()
+
+# On Windows, CMake by default compiles with the shared CRT.
+# Ensure that gmock compiles the same, otherwise failures will occur.
+if(WIN32)
+  # TODO(awoloszyn): Once we support selecting CRT versions,
+  # make sure this matches correctly.
+  set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+endif(WIN32)
+
+if (ANDROID)
+# For android let's preemptively find the correct packages so that
+# child projects (glslang, googletest) do not fail to find them.
+
+# Tests in glslc and SPIRV-Tools tests require Python 3, or a Python 2
+# with the "future" package.  Require Python 3 because we can't force
+# developers to manually install the "future" package.
+find_host_package(PythonInterp 3 REQUIRED)
+find_host_package(BISON)
+else()
+  find_package(Python COMPONENTS Interpreter REQUIRED)
+endif()
+
+option(DISABLE_RTTI "Disable RTTI in builds")
+if(DISABLE_RTTI)
+  if(UNIX)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}  -fno-rtti")
+  endif(UNIX)
+endif(DISABLE_RTTI)
+
+option(DISABLE_EXCEPTIONS "Disables exceptions in builds")
+if(DISABLE_EXCEPTIONS)
+  if(UNIX)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
+  endif(UNIX)
+endif(DISABLE_EXCEPTIONS)