diff -Nru orig/DNABarcodes/src/Makevars patched/DNABarcodes/src/Makevars
--- orig/DNABarcodes/src/Makevars	2023-10-20 20:27:05.000000000 +0200
+++ patched/DNABarcodes/src/Makevars	2024-03-16 11:44:37.516260500 +0100
@@ -1,3 +1,4 @@
+CXX_STD = CXX14
 #PKG_CXXFLAGS = $(CXX1XSTD) $(SHLIB_OPENMP_CXXFLAGS)
 PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS)
 PKG_CFLAGS = $(SHLIB_OPENMP_CFLAGS)