libosdp-sys 3.2.1

Sys crate for https://github.com/goToMain/libosdp
Documentation 
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# - Adds a compiler flag if it is supported by the compiler
#
# This function checks that the supplied compiler flag is supported and then
# adds it to the corresponding compiler flags
#
#  add_c_compiler_flag(<FLAG> [<VARIANT>])
#
# - Example
#
# include(AddCCompilerFlag)
# add_c_compiler_flag(-Wall)
# add_c_compiler_flag(-no-strict-aliasing RELEASE)
# Requires CMake 2.6+

if(__add_c_compiler_flag)
	return()
endif()

set(__add_c_compiler_flag INCLUDED)

include(CheckCCompilerFlag)

function(add_c_compiler_flag FLAG)
	string(TOUPPER "HAVE_C_FLAG_${FLAG}" SANITIZED_FLAG)
	string(REPLACE "+" "X" SANITIZED_FLAG ${SANITIZED_FLAG})
	string(REGEX REPLACE "[^A-Za-z_0-9]" "_" SANITIZED_FLAG ${SANITIZED_FLAG})
	string(REGEX REPLACE "_+" "_" SANITIZED_FLAG ${SANITIZED_FLAG})
	set(CMAKE_REQUIRED_FLAGS "${FLAG}")
	check_c_compiler_flag("" ${SANITIZED_FLAG})
	if(${SANITIZED_FLAG})
		set(VARIANT ${ARGV1})
		if(ARGV1)
			string(REGEX REPLACE "[^A-Za-z_0-9]" "_" VARIANT "${VARIANT}")
			string(TOUPPER "_${VARIANT}" VARIANT)
		endif()
	set(CMAKE_C_FLAGS${VARIANT} "${CMAKE_C_FLAGS${VARIANT}} ${FLAG}" PARENT_SCOPE)
	endif()
endfunction()