Make error when trying to build OpenShadingLanguage on Ubuntu - linux

Question

I have all dependencies set up, as far as I'm aware, ccmake shows everything has been found. However, when I run make, I get the following output:
shanesimmsart#shanesimmsart-pc:~/OpenShadingLanguage/build$ make
[ 1%] Building CXX object src/liboslcomp/CMakeFiles/oslcomp.dir/ast.cpp.o
In file included from /home/shanesimmsart/OpenShadingLanguage/src/include/osl_pvt.h:31:0,
from /home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp:35:
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslconfig.h:109:13: error: ‘OIIO::string_view’ has not been declared
using OIIO::string_view;
^
In file included from /home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp:35:0:
/home/shanesimmsart/OpenShadingLanguage/src/include/osl_pvt.h:54:1: error: ‘string_view’ does not name a type
string_view shadertypename (ShaderType s);
^
/home/shanesimmsart/OpenShadingLanguage/src/include/osl_pvt.h:58:34: error: ‘string_view’ was not declared in this scope
ShaderType shadertype_from_name (string_view name);
^
/home/shanesimmsart/OpenShadingLanguage/src/include/osl_pvt.h:76:32: error: ‘string_view’ was not declared in this scope
ShaderUse shaderuse_from_name (string_view name);
^
In file included from /home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/oslcomp_pvt.h:36:0,
from /home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp:36:
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslcomp.h:52:19: error: ‘string_view’ has not been declared
bool compile (string_view filename,
^
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslcomp.h:54:19: error: ‘string_view’ has not been declared
string_view stdoslpath = string_view());
^
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslcomp.h:59:26: error: ‘string_view’ has not been declared
bool compile_buffer (string_view sourcecode, std::string &osobuffer,
^
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslcomp.h:61:26: error: ‘string_view’ has not been declared
string_view stdoslpath = string_view());
^
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslcomp.h:65:5: error: ‘string_view’ does not name a type
string_view output_filename () const;
^
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslcomp.h:54:56: error: ‘string_view’ was not declared in this scope
string_view stdoslpath = string_view());
^
/home/shanesimmsart/OpenShadingLanguage/src/include/OSL/oslcomp.h:61:63: error: ‘string_view’ was not declared in this scope
string_view stdoslpath = string_view());
^
In file included from /home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/oslcomp_pvt.h:37:0,
from /home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp:36:
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.h:354:5: error: ‘string_view’ does not name a type
string_view shadertypename () const;
^
In file included from /home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp:36:0:
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/oslcomp_pvt.h:69:19: error: ‘string_view’ has not been declared
bool compile (string_view filename,
^
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/oslcomp_pvt.h:71:19: error: ‘string_view’ has not been declared
string_view stdoslpath);
^
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/oslcomp_pvt.h:73:26: error: ‘string_view’ has not been declared
bool compile_buffer (string_view sourcecode,
^
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/oslcomp_pvt.h:76:26: error: ‘string_view’ has not been declared
string_view stdoslpath);
^
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/oslcomp_pvt.h:249:5: error: ‘string_view’ does not name a type
string_view output_filename () const { return m_output_filename; }
^
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp: In member function ‘virtual void OSL::pvt::ASTshader_declaration::print(std::ostream&, int) const’:
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp:195:59: error: ‘shadertypename’ was not declared in this scope
out << "(" << nodetypename() << " " << shadertypename()
^
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp: At global scope:
/home/shanesimmsart/OpenShadingLanguage/src/liboslcomp/ast.cpp:204:1: error: ‘string_view’ does not name a type
string_view
^
make[2]: *** [src/liboslcomp/CMakeFiles/oslcomp.dir/ast.cpp.o] Error 1
make[1]: *** [src/liboslcomp/CMakeFiles/oslcomp.dir/all] Error 2
make: *** [all] Error 2
This appears to be an issue with string_view.h, included from OpenImageIO, however when I look in /usr/include/OpenImageIO/, string_view.h is right there. As far as I can tell, OIIO is up to date with version 1.5, so I can't imagine it's a version issue either, although I'm not ruling that out.
Any advice would be greatly appreciated.