Mark --no-relative-cfuncs as scheduled for deprecation.

Changes

@@ -16,6 +16,7 @@ Verilator 4.201 devel
 * Add EOFNEWLINE warning when missing a newline at EOF.
 * Changed TIMESCALEMOD from error into a warning.
 * Verilated signals now use VlWide and VlPacked in place of C arrays.
+* Mark --no-relative-cfuncs as scheduled for deprecation.
 * Fix class unpacked-array compile error (#2774). [Iru Cai]
 * Fix exceeding command-line ar limit (#2834). [Yinan Xu]
 * Fix false $dumpfile warning on model save (#2834). [Yinan Xu]

bin/verilator

@@ -5142,6 +5142,11 @@ Verilator currently requires C++11 or newer compilers.  Verilator will
 require C++14 or newer compilers for both compiling Verilator and compiling
 Verilated models no sooner than January 2022.
 
+=item --no-relative-cfuncs
+
+The --no-relative-cfuncs option is not be required by any C++11 compliant
+compiler and is planned for removal no sooner than July 2021.
+
 =item --inhibit-sim
 
 The --inhibit-sim option is planned for removal no sooner than July 2021.

src/V3Options.cpp

@@ -1088,6 +1088,9 @@ void V3Options::parseOptsList(FileLine* fl, const string& optdir, int argc, char
                 m_quietExit = flag;
             } else if (onoff(sw, "-relative-cfuncs", flag /*ref*/)) {
                 m_relativeCFuncs = flag;
+                if (!m_relativeCFuncs)
+                    fl->v3warn(DEPRECATED,
+                               "Deprecated --no-relative-cfuncs, unnecessary with C++11.");
             } else if (onoff(sw, "-relative-includes", flag /*ref*/)) {
                 m_relativeIncludes = flag;
             } else if (onoff(sw, "-report-unoptflat", flag /*ref*/)) {

test_regress/t/t_inst_tree_inl0_pub1_norelcfuncs.pl

@@ -13,7 +13,7 @@ scenarios(simulator => 1);
 top_filename("t/t_inst_tree.v");
 
 compile(
-    verilator_flags2 => ['--stats', '--norelative-cfuncs',
+    verilator_flags2 => ['--stats', '-Wno-DEPRECATED', '--norelative-cfuncs',
                          "$Self->{t_dir}/t_inst_tree_inl0_pub1.vlt",
                          $Self->wno_unopthreads_for_few_cores()]
     );