diff options
Diffstat (limited to 'toolsrc/include/vcpkg_System.h')
| -rw-r--r-- | toolsrc/include/vcpkg_System.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/toolsrc/include/vcpkg_System.h b/toolsrc/include/vcpkg_System.h index 777f64bf4..7634034ab 100644 --- a/toolsrc/include/vcpkg_System.h +++ b/toolsrc/include/vcpkg_System.h @@ -2,6 +2,7 @@ #include "vcpkg_Strings.h" #include "filesystem_fs.h" +#include "vcpkg_optional.h" namespace vcpkg::System { @@ -92,7 +93,7 @@ namespace vcpkg::System double microseconds() const; }; - std::wstring get_environmental_variable(const wchar_t* varname) noexcept; + optional<std::wstring> get_environmental_variable(const wchar_t* varname) noexcept; void set_environmental_variable(const wchar_t* varname, const wchar_t* varvalue) noexcept; } |