Merge #92704: gcc: Improve manpage symlinks

pkgs/development/compilers/gcc/builder.sh

@@ -287,7 +287,12 @@ postInstall() {
     done
 
     # Two identical man pages are shipped (moving and compressing is done later)
-    ln -sf gcc.1 "$out"/share/man/man1/g++.1
+    for i in "$out"/share/man/man1/*g++.1; do
+        if test -e "$i"; then
+            man_prefix=`echo "$i" | sed "s,.*/\(.*\)g++.1,\1,"`
+            ln -sf "$man_prefix"gcc.1 "$i"
+        fi
+    done
 }
 
 genericBuild