diff --git a/lib/libcasper/services/cap_grp/Makefile b/lib/libcasper/services/cap_grp/Makefile
index b46f3bfdaa47..0f722e3979f9 100644
--- a/lib/libcasper/services/cap_grp/Makefile
+++ b/lib/libcasper/services/cap_grp/Makefile
@@ -1,42 +1,45 @@
 
 SHLIBDIR?=	/lib
 
 .include <src.opts.mk>
 
 PACKAGE=	runtime
 
 SHLIB_MAJOR=	1
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
 SHLIB=	cap_grp
 
 SRCS=	cap_grp.c
 .endif
 
 INCS=	cap_grp.h
 
 LIBADD=	nv
 
 CFLAGS+=-I${.CURDIR}
 
 HAS_TESTS=
 SUBDIR.${MK_TESTS}+= tests
 
 MAN+=	cap_grp.3
 
 MLINKS+=cap_grp.3 libcap_grp.3
 MLINKS+=cap_grp.3 cap_getgrent.3
 MLINKS+=cap_grp.3 cap_getgrnam.3
 MLINKS+=cap_grp.3 cap_getgrgid.3
 MLINKS+=cap_grp.3 cap_getgrent_r.3
 MLINKS+=cap_grp.3 cap_getgrnam_r.3
 MLINKS+=cap_grp.3 cap_getgrgid_r.3
 MLINKS+=cap_grp.3 cap_setgroupent.3
 MLINKS+=cap_grp.3 cap_setgrent.3
 MLINKS+=cap_grp.3 cap_endgrent.3
 MLINKS+=cap_grp.3 cap_grp_limit_cmds.3
 MLINKS+=cap_grp.3 cap_grp_limit_fields.3
 MLINKS+=cap_grp.3 cap_grp_limit_groups.3
 
 .include <bsd.lib.mk>
+
+# GCC 13 complains incorrectly about free after failed realloc: GCC bug #110501
+CFLAGS.cap_grp.c+= ${NO_WUSE_AFTER_FREE}
diff --git a/lib/libcasper/services/cap_netdb/Makefile b/lib/libcasper/services/cap_netdb/Makefile
index 36c57103b414..653aa21c9b32 100644
--- a/lib/libcasper/services/cap_netdb/Makefile
+++ b/lib/libcasper/services/cap_netdb/Makefile
@@ -1,31 +1,34 @@
 
 SHLIBDIR?=	/lib
 
 .include <src.opts.mk>
 
 PACKAGE=	runtime
 
 SHLIB_MAJOR=	1
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
 SHLIB=	cap_netdb
 
 SRCS=	cap_netdb.c
 .endif
 
 INCS=	cap_netdb.h
 
 LIBADD=	nv
 
 CFLAGS+=-I${.CURDIR}
 
 HAS_TESTS=
 SUBDIR.${MK_TESTS}+= tests
 
 MAN+=	cap_netdb.3
 
 MLINKS+=cap_netdb.3 libcap_netdb.3
 MLINKS+=cap_netdb.3 cap_getprotobyname.3
 
 .include <bsd.lib.mk>
+
+# GCC 13 complains incorrectly about free after failed realloc: GCC bug #110501
+CFLAGS.cap_netdb.c+= ${NO_WUSE_AFTER_FREE}
diff --git a/lib/libcasper/services/cap_pwd/Makefile b/lib/libcasper/services/cap_pwd/Makefile
index be6b4b21070f..4e0e6db6f86d 100644
--- a/lib/libcasper/services/cap_pwd/Makefile
+++ b/lib/libcasper/services/cap_pwd/Makefile
@@ -1,42 +1,45 @@
 
 SHLIBDIR?=	/lib
 
 .include <src.opts.mk>
 
 PACKAGE=	runtime
 
 SHLIB_MAJOR=	1
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
 SHLIB=	cap_pwd
 
 SRCS=	cap_pwd.c
 .endif
 
 INCS=	cap_pwd.h
 
 LIBADD=	nv
 
 CFLAGS+=-I${.CURDIR}
 
 HAS_TESTS=
 SUBDIR.${MK_TESTS}+= tests
 
 MAN+=	cap_pwd.3
 
 MLINKS+=cap_pwd.3 libcap_pwd.3
 MLINKS+=cap_pwd.3 cap_getpwent.3
 MLINKS+=cap_pwd.3 cap_getpwnam.3
 MLINKS+=cap_pwd.3 cap_getpwuid.3
 MLINKS+=cap_pwd.3 cap_getpwent_r.3
 MLINKS+=cap_pwd.3 cap_getpwnam_r.3
 MLINKS+=cap_pwd.3 cap_getpwuid_r.3
 MLINKS+=cap_pwd.3 cap_setpassent.3
 MLINKS+=cap_pwd.3 cap_setpwent.3
 MLINKS+=cap_pwd.3 cap_endpwent.3
 MLINKS+=cap_pwd.3 cap_pwd_limit_cmds.3
 MLINKS+=cap_pwd.3 cap_pwd_limit_fields.3
 MLINKS+=cap_pwd.3 cap_pwd_limit_users.3
 
 .include <bsd.lib.mk>
+
+# GCC 13 complains incorrectly about free after failed realloc: GCC bug #110501
+CFLAGS.cap_pwd.c+= ${NO_WUSE_AFTER_FREE}