configure.ac:22: warning: The macro 'AC_ERROR' is obsolete.
./lib/autoconf/oldnames.m4:34: AC_ERROR is expanded from...
checking for strerror... yes
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-test.o -MD -MP -MF .deps/argp-test.Tpo -c -o argp-test.o argp-test.c
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-ba.o -MD -MP -MF .deps/argp-ba.Tpo -c -o argp-ba.o argp-ba.c
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-eexst.o -MD -MP -MF .deps/argp-eexst.Tpo -c -o argp-eexst.o argp-eexst.c
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-fmtstream.o -MD -MP -MF .deps/argp-fmtstream.Tpo -c -o argp-fmtstream.o argp-fmtstream.c
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-help.o -MD -MP -MF .deps/argp-help.Tpo -c -o argp-help.o argp-help.c
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-parse.o -MD -MP -MF .deps/argp-parse.Tpo -c -o argp-parse.o argp-parse.c
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-pv.o -MD -MP -MF .deps/argp-pv.Tpo -c -o argp-pv.o argp-pv.c
cc -DHAVE_CONFIG_H -I.   -I.  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline -MT argp-pvh.o -MD -MP -MF .deps/argp-pvh.Tpo -c -o argp-pvh.o argp-pvh.c
argp-help.c:1762:10: warning: no previous prototype for '__argp_error_internal' [-Wmissing-prototypes]
 1762 |     void __argp_error_internal(const struct argp_state* state,
argp-help.c: In function '__argp_error_internal':
argp-help.c:1825:10: warning: no previous prototype for '__argp_failure_internal' [-Wmissing-prototypes]
 1825 |     void __argp_failure_internal(const struct argp_state* state,
argp-help.c: In function '__argp_failure_internal':
cc  -Os -fstack-clash-protection -Wformat -Werror=format-security -fno-plt -fPIC -Wall -W  -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes  -Waggregate-return  -Wpointer-arith -Wbad-function-cast -Wnested-externs -fgnu89-inline  -Wl,--as-needed,-O1,--sort-common -Wl,-z,pack-relative-relocs -o argp-test argp-test.o libargp.a 
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:446: argp-test] Error 1
make[1]: *** [Makefile:493: all-recursive] Error 1
make: *** [Makefile:380: all] Error 2
>>> ERROR: argp-standalone: build failed