meta-ast 0.4.0

Polyglot static-analysis engine: extract symbols and cross-language dependency graphs from 8 supported source languages, with optional MetaCall deployment manifest generation.
Documentation 
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#
#	Compiler and linker options for hardening flags by Parra Studios
#	Enables hardening security flags if available.
#
#	Copyright (C) 2016 - 2026 Vicente Eduardo Ferrer Garcia <vic798@gmail.com>
#
#	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.
#

include(CheckCCompilerFlag)
include(CheckCCompilerFlagStackSmashing)

if("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU")

	if(OPTION_BUILD_PIC)
		# Detect position independent code flag
		check_c_compiler_flag("-fPIC" PIC_C_FLAG)

		if(PIC_C_FLAG)
			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
		endif()
	endif()

	if(OPTION_BUILD_SECURITY)
		# Detect stack protector
		check_c_compiler_flag_stack_smashing("-fstack-protector-strong" STACK_PROTECTOR_STRONG_C_FLAG)

		if(STACK_PROTECTOR_STRONG_C_FLAG)
			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector-strong")

			# use ssp-buffer-size if it is supported
			if(CMAKE_C_COMPILER_VERSION VERSION_GREATER 4.9)
				set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --param ssp-buffer-size=4")
			endif()
		else()
			check_c_compiler_flag_stack_smashing("-fstack-protector" STACK_PROTECTOR_CXX_FLAG)

			if(STACK_PROTECTOR_C_FLAG)
				set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector")

				# use ssp-buffer-size if it is supported
				if(CMAKE_C_COMPILER_VERSION VERSION_GREATER 4.9)
					set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --param ssp-buffer-size=4")
				endif()
			endif()
		endif()

		# Detect fortify source
		check_c_compiler_flag("-D_FORTIFY_SOURCE=2" FORTIFY_SOURCE_C_FLAG)

		if(FORTIFY_SOURCE_C_FLAG)
			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3 -D_FORTIFY_SOURCE=2")
		endif()
	endif()

endif()

include(CheckCXXCompilerFlag)
include(CheckCXXCompilerFlagStackSmashing)

if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")

	if(OPTION_BUILD_PIC)
		# Detect position independent code flag
		check_cxx_compiler_flag("-fPIC" PIC_CXX_FLAG)

		if(PIC_CXX_FLAG)
			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
		endif()
	endif()

	if(OPTION_BUILD_SECURITY)
		# Detect stack protector
		check_cxx_compiler_flag_stack_smashing("-fstack-protector-strong" STACK_PROTECTOR_STRONG_CXX_FLAG)

		if(STACK_PROTECTOR_STRONG_CXX_FLAG)
			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstack-protector-strong")

			# use ssp-buffer-size if it is supported
			if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.9)
				set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --param ssp-buffer-size=4")
			endif()
		else()
			check_cxx_compiler_flag_stack_smashing("-fstack-protector" STACK_PROTECTOR_CXX_FLAG)

			if(STACK_PROTECTOR_CXX_FLAG)
				set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstack-protector")

				# use ssp-buffer-size if it is supported
				if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.9)
					set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --param ssp-buffer-size=4")
				endif()
			endif()
		endif()

		# Detect fortify source
		check_cxx_compiler_flag("-D_FORTIFY_SOURCE=2" FORTIFY_SOURCE_CXX_FLAG)

		if(FORTIFY_SOURCE_CXX_FLAG)
			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3 -D_FORTIFY_SOURCE=2")
		endif()
	endif()

endif()