g++: error: -pie is not supported in this configuration
make[4]: *** [/ws/grzemba/oi-userland/components/web/firefox/firefox-68.12.0/config/rules.mk:540: ../../../dist/bin/js] Error 1
make[4]: Leaving directory '/ws/grzemba/oi-userland/components/web/firefox/build/amd64/js/src/shell'
--- gecko-dev-master/build/autoconf/compiler-opts.m4.old	2023-06-10 13:54:09.501319246 -0400
+++ gecko-dev-master/build/autoconf/compiler-opts.m4	2023-06-10 13:57:28.109237589 -0400
@@ -147,9 +147,10 @@
 
 if test "$GNU_CC$CLANG_CC"; then
     case "${OS_TARGET}" in
-    Darwin|WASI)
+    Darwin|WASI|SunOS)
         # It's the default on those targets, and clang complains about -pie
         # being unused if passed.
+        # On Illumos, there was an error using -pie with g++ for Firefox 68
         ;;
     *)
         MOZ_PROGRAM_LDFLAGS="$MOZ_PROGRAM_LDFLAGS -pie"