Snippets for libiconv 1.19 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/xzj6v2756krnj4c956w43lcj5pmvj4bd-libiconv-1.19.drv.

• ./cp950ext.h:38:11: warning: equality comparison with extraneous parentheses [-Wparentheses-equality]
     38 |   if ((c1 == 0xf9)) {
        |        ~~~^~~~~~~
  

• ./hkscs2001.h:62:11: warning: equality comparison with extraneous parentheses [-Wparentheses-equality]
     62 |   if ((c1 == 0x8c)) {
        |        ~~~^~~~~~~
  

• ./hkscs2008.h:58:11: warning: equality comparison with extraneous parentheses [-Wparentheses-equality]
     58 |   if ((c1 == 0x87)) {
        |        ~~~^~~~~~~