Merge branch 'mnt/c++17' into 'master'

Mnt/c++17

See merge request !32

CHANGELOG.md

 # FSL base project changelog
 
 
+## 2111.4 (Wednesday 17th November 2021)
+
+* The default C++ language standard is now `-std=c++17`.
+
+
 ## 2111.3 (Wednesday 17th November 2021)
 
 * The `$FSLDEVDIR/lib` directory is now added to the `rpath` entry for shared

config/buildSettings.mk

@@ -46,10 +46,10 @@ TCLSH   ?= ${FSLDIR}/bin/fsltclsh
 ARCHCFLAGS = -std=c99 -fPIC
 
 # Compiler flags for C++ projects.
-#  - C++11 as minimum source compatibility standard
+#  - C++17 as minimum source compatibility standard
 #  - Position independent code essential for
 #    compiling/using shared libraries
-ARCHCXXFLAGS = -std=c++11 -fPIC
+ARCHCXXFLAGS = -std=c++17 -fPIC
 
 # Preprocesor flags for C/C++ projects.
 ARCHCPPFLAGS =