libtool: compile:  clang10 -std=gnu99 -DHAVE_CONFIG_H -I. -I../.. -I../../include -I../../bin/varnishd -I../../include -I/usr/local/include -isystem /usr/local/include -O2 -pipe -O2 -march=native -I/usr/local/include -fstack-protector-strong -isystem /usr/local/include -fno-strict-aliasing -D_THREAD_SAFE -pthread -Wall -Werror -Wno-error=unused-result -MT vmod_std_fileread.lo -MD -MP -MF .deps/vmod_std_fileread.Tpo -c vmod_std_fileread.c  -fPIC -DPIC -o .libs/vmod_std_fileread.o
vmod_std_conversions.c:198:10: error: implicit conversion from 'long' to 'double' changes value from 9223372036854775807 to 9223372036854775808 [-Werror,-Wimplicit-int-float-conversion]
        if (r > LONG_MAX || r < LONG_MIN)
              ~ ^~~~~~~~
/usr/include/sys/limits.h:62:18: note: expanded from macro 'LONG_MAX'
#define LONG_MAX        __LONG_MAX      /* max for a long */
                        ^~~~~~~~~~
/usr/include/x86/_limits.h:62:20: note: expanded from macro '__LONG_MAX'
#define __LONG_MAX      0x7fffffffffffffff      /* max for a long */
                        ^~~~~~~~~~~~~~~~~~
vmod_std_conversions.c:222:10: error: implicit conversion from 'long' to 'double' changes value from 9223372036854775807 to 9223372036854775808 [-Werror,-Wimplicit-int-float-conversion]
        if (t > LONG_MAX || t < LONG_MIN)
              ~ ^~~~~~~~
/usr/include/sys/limits.h:62:18: note: expanded from macro 'LONG_MAX'
#define LONG_MAX        __LONG_MAX      /* max for a long */
                        ^~~~~~~~~~
/usr/include/x86/_limits.h:62:20: note: expanded from macro '__LONG_MAX'
#define __LONG_MAX      0x7fffffffffffffff      /* max for a long */
                        ^~~~~~~~~~~~~~~~~~
2 errors generated.
gmake[5]: *** [Makefile:504: vmod_std_conversions.lo] Error 1
gmake[5]: *** Waiting for unfinished jobs....
mv -f .deps/vmod_std_fileread.Tpo .deps/vmod_std_fileread.Plo
mv -f .deps/vmod_std_querysort.Tpo .deps/vmod_std_querysort.Plo
mv -f .deps/vmod_std.Tpo .deps/vmod_std.Plo
gmake[5]: Leaving directory '/tmp/usr/ports/www/varnish4/work/varnish-cache-varnish-4.1.10/lib/libvmod_std'
gmake[4]: *** [Makefile:410: all-recursive] Error 1
gmake[4]: Leaving directory '/tmp/usr/ports/www/varnish4/work/varnish-cache-varnish-4.1.10/lib'
gmake[3]: *** [Makefile:542: all-recursive] Error 1
gmake[3]: Leaving directory '/tmp/usr/ports/www/varnish4/work/varnish-cache-varnish-4.1.10'
gmake[2]: *** [Makefile:428: all] Error 2
gmake[2]: Leaving directory '/tmp/usr/ports/www/varnish4/work/varnish-cache-varnish-4.1.10'
===> Compilation failed unexpectedly.