From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 9 Mar 2023 02:55:53 +0000 (-0700)
Subject: Let doxygen know how to handle 'requires' expressions.
X-Git-Tag: v9.5.0-rc1~491^2~4
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac94066b1983e8d73363cf59842dd590a6182b56;p=dealii.git

Let doxygen know how to handle 'requires' expressions.
---

diff --git a/doc/doxygen/options.dox.in b/doc/doxygen/options.dox.in
index b95298ffa2..045d5d88b7 100644
--- a/doc/doxygen/options.dox.in
+++ b/doc/doxygen/options.dox.in
@@ -184,6 +184,7 @@ PREDEFINED             = DOXYGEN=1 \
                          DEAL_II_HOST_DEVICE= \
                          DEAL_II_ALWAYS_INLINE= \
                          __device__= \
+			 DEAL_II_CXX20_REQUIRES=requires \
                          DEAL_II_WITH_ADOLC=1 \
                          DEAL_II_ADOLC_WITH_ADVANCED_BRANCHING=1 \
                          DEAL_II_ADOLC_WITH_ATRIG_ERF=1 \