See the following: $ yay -S shadowsocksr-libev-git [...] acl.c: In function 'init_block_list': acl.c:74:90: error: '%s' directive writing up to 63 bytes into a region of size between 50 and 176 [-Werror=format-overflow=] 74 | "ip6tables -N %s; ip6tables -F %s; ip6tables -A OUTPUT -p tcp --tcp-flags RST RST -j %s"; | ^~ ...... 158 | sprintf(cli, ip6tables_init_chain, chain_name, chain_name, chain_name); | ~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 81 and 270 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ acl.c:67:87: error: '%s' directive writing up to 63 bytes into a region of size between 53 and 179 [-Werror=format-overflow=] 67 | "iptables -N %s; iptables -F %s; iptables -A OUTPUT -p tcp --tcp-flags RST RST -j %s"; | ^~ ...... 160 | sprintf(cli, iptables_init_chain, chain_name, chain_name, chain_name); | ~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 78 and 267 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ acl.c:92:5: error: '; firewall-cmd --direct...' directive writing 88 bytes into a region of size between 33 and 159 [-Werror=format-overflow=] 92 | "firewall-cmd --direct --add-chain ipv6 filter %s; \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 93 | firewall-cmd --direct --passthrough ipv6 -F %s; \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 94 | firewall-cmd --direct --passthrough ipv6 -A OUTPUT -p tcp --tcp-flags RST RST -j %s"; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 186 and 375 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ acl.c:81:5: error: '; firewall-cmd --direct...' directive writing 88 bytes into a region of size between 33 and 159 [-Werror=format-overflow=] 81 | "firewall-cmd --direct --add-chain ipv4 filter %s; \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 82 | firewall-cmd --direct --passthrough ipv4 -F %s; \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 83 | firewall-cmd --direct --passthrough ipv4 -A OUTPUT -p tcp --tcp-flags RST RST -j %s"; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 186 and 375 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ acl.c: In function 'free_block_list': acl.c:96:5: error: '%s' directive writing up to 63 bytes into a region of size between 61 and 124 [-Werror=format-overflow=] 96 | "firewall-cmd --direct --passthrough ipv6 -D OUTPUT -p tcp --tcp-flags RST RST -j %s; \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 97 | firewall-cmd --direct --passthrough ipv6 -F %s; \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 98 | firewall-cmd --direct --remove-chain ipv6 filter %s"; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ...... 184 | sprintf(cli, firewalld6_remove_chain, chain_name, chain_name, chain_name); | ~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 189 and 378 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ acl.c:85:5: error: '%s' directive writing up to 63 bytes into a region of size between 61 and 124 [-Werror=format-overflow=] 85 | "firewall-cmd --direct --passthrough ipv4 -D OUTPUT -p tcp --tcp-flags RST RST -j %s; \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 86 | firewall-cmd --direct --passthrough ipv4 -F %s; \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 87 | firewall-cmd --direct --remove-chain ipv4 filter %s"; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ...... 186 | sprintf(cli, firewalld_remove_chain, chain_name, chain_name, chain_name); | ~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 189 and 378 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ acl.c:76:90: error: '%s' directive writing up to 63 bytes into a region of size between 50 and 176 [-Werror=format-overflow=] 76 | "ip6tables -D OUTPUT -p tcp --tcp-flags RST RST -j %s; ip6tables -F %s; ip6tables -X %s"; | ^~ ...... 179 | sprintf(cli, ip6tables_remove_chain, chain_name, chain_name, chain_name); | ~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 81 and 270 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ acl.c:69:87: error: '%s' directive writing up to 63 bytes into a region of size between 53 and 179 [-Werror=format-overflow=] 69 | "iptables -D OUTPUT -p tcp --tcp-flags RST RST -j %s; iptables -F %s; iptables -X %s"; | ^~ ...... 181 | sprintf(cli, iptables_remove_chain, chain_name, chain_name, chain_name); | ~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from ../libipset/include/ipset/ipset.h:14, from acl.c:23: /usr/include/bits/stdio2.h:36:10: note: '__builtin___sprintf_chk' output between 78 and 267 bytes into a destination of size 256 36 | return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 37 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[2]: *** [Makefile:778: libshadowsocks_libev_la-acl.lo] Error 1 make[2]: Leaving directory '/home/werner/.cache/yay/shadowsocksr-libev-git/src/shadowsocksr-libev/src' make[1]: *** [Makefile:478: all-recursive] Error 1 make[1]: Leaving directory '/home/werner/.cache/yay/shadowsocksr-libev-git/src/shadowsocksr-libev' make: *** [Makefile:387: all] Error 2 ==> ERROR: A failure occurred in build(). Aborting... Error making: shadowsocksr-libev-git -- Hongsheng Zhao Institute of Semiconductors, Chinese Academy of Sciences GnuPG DSA: 0xD108493