=> Bootstrap dependency digest>=20010302: found digest-20180917
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
===> Building for bcal-2.1
clang -O2 -I/usr/include -Wall -Wextra -Wno-unused-parameter -Werror -L/usr/lib -Wl,-R/usr/lib -Wl,-R/usr/pkg/lib -Iinc -o bcal src/bcal.c -lreadline
src/bcal.c:1165:17: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
        while (*s1 && (tolower(*s1) == tolower(*s2))) {
                       ^~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:59:46: note: expanded from macro 'tolower'
#define tolower(c)      ((int)((_tolower_tab_ + 1)[(c)]))
                                                  ^~~~
src/bcal.c:1165:33: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
        while (*s1 && (tolower(*s1) == tolower(*s2))) {
                                       ^~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:59:46: note: expanded from macro 'tolower'
#define tolower(c)      ((int)((_tolower_tab_ + 1)[(c)]))
                                                  ^~~~
src/bcal.c:1433:30: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                if (strlen(arg.p) == 1 && !isdigit(arg.p[0])) {
                                           ^~~~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:51:44: note: expanded from macro 'isdigit'
#define isdigit(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_D))
                                                ^~~~
src/bcal.c:1656:22: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
        while (len >= 0 && (isspace(s[len]) || s[len] == '\"' || s[len] == '\''))
                            ^~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:56:44: note: expanded from macro 'isspace'
#define isspace(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_S))
                                                ^~~~
src/bcal.c:1661:20: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
        while (s[len] && (isspace(s[len]) || s[len] == '\"' || s[len] == '\''))
                          ^~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:56:44: note: expanded from macro 'isspace'
#define isspace(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_S))
                                                ^~~~
src/bcal.c:1681:8: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                if (!isspace(*s) || (*(s + 1) == 'b')) {
                     ^~~~~~~~~~~
/usr/include/sys/ctype_inline.h:56:44: note: expanded from macro 'isspace'
#define isspace(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_S))
                                                ^~~~
src/bcal.c:1729:29: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                if (isoperator(exp[i]) && isalpha(exp[i + 1]) && (exp[i + 1] != 'r')) {
                                          ^~~~~~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:49:44: note: expanded from macro 'isalpha'
#define isalpha(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_A))
                                                ^~~~
src/bcal.c:1735:8: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                if ((isdigit(exp[i]) && isoperator(exp[i + 1])) ||
                     ^~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:51:44: note: expanded from macro 'isdigit'
#define isdigit(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_D))
                                                ^~~~
src/bcal.c:1736:31: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                    (isoperator(exp[i]) && (isdigit(exp[i + 1]) ||
                                            ^~~~~~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:51:44: note: expanded from macro 'isdigit'
#define isdigit(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_D))
                                                ^~~~
src/bcal.c:1738:8: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                    (isalpha(exp[i]) && isoperator(exp[i + 1])) ||
                     ^~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:49:44: note: expanded from macro 'isalpha'
#define isalpha(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_A))
                                                ^~~~
src/bcal.c:1811:9: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                        if (!isalpha(value[len - 1]))
                             ^~~~~~~~~~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:49:44: note: expanded from macro 'isalpha'
#define isalpha(c)      ((int)((_ctype_tab_ + 1)[(c)] & _CTYPE_A))
                                                ^~~~
src/bcal.c:2032:8: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                        if (tolower(*optarg) == 'c') {
                            ^~~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:59:46: note: expanded from macro 'tolower'
#define tolower(c)      ((int)((_tolower_tab_ + 1)[(c)]))
                                                  ^~~~
src/bcal.c:2041:15: error: array subscript is of type 'char' [-Werror,-Wchar-subscripts]
                        } else if (tolower(*optarg) == 'l') {
                                   ^~~~~~~~~~~~~~~~
/usr/include/sys/ctype_inline.h:59:46: note: expanded from macro 'tolower'
#define tolower(c)      ((int)((_tolower_tab_ + 1)[(c)]))
                                                  ^~~~
13 errors generated.
gmake: *** [Makefile:14: bcal] Error 1
*** Error code 2

Stop.
make[1]: stopped in /data/pkgsrc/math/bcal
*** Error code 1

Stop.
make: stopped in /data/pkgsrc/math/bcal