vcpkg/ports/abseil/fix-use-cxx17-stdlib-types.patch, branch 2020.06 Forked from https://github.com/microsoft/vcpkg [abseil] Use std:: types when feature cxx17 is enabled (#11039) 2020-05-01T00:22:56+00:00 Carsten Neumann carsten.p.neumann@gmail.com 2020-05-01T00:22:56+00:00 41f360b8339109ebd7a6a4d94ea8d604f9078a62 Adds a patch changing macros in absl/base/options.h to always use the std:: namespace types instead of the absl:: namespace replacements (for any, optional, string_view, variant). The upstream version of options.h uses compiler/library feature detection to decide this, but patch fix-lnk2019-error.patch hard codes use of absl:: types, thus rendering setting CMAKE_CXX_STANDARD to 17 in the port file ineffective. Since auto detection is problematic from an ABI point of view (see comments in absl/base/options.h for details), this applies an alternate patch for fix-lnk2019-error.patch when feature cxx17 is enabled. 
Adds a patch changing macros in absl/base/options.h to
always use the std:: namespace types instead of the
absl:: namespace replacements (for any, optional,
string_view, variant).
The upstream version of options.h uses compiler/library
feature detection to decide this, but patch
fix-lnk2019-error.patch hard codes use of absl:: types,
thus rendering setting CMAKE_CXX_STANDARD to 17 in the
port file ineffective. Since auto detection is problematic
from an ABI point of view (see comments in
absl/base/options.h for details), this applies an
alternate patch for fix-lnk2019-error.patch when feature
cxx17 is enabled.