crypto-utils-2.4.1-60.fc24 fails to build in F24:

+ cc -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic -Wall -Werror=implicit-function-declaration -Werror -I/usr/include/nspr4 -I/usr/include/nss3 keyutil.c certext.c secutil.c -o keyutil -lplc4 -lnspr4 -lnss3
keyutil.c: In function 'CertReq':
keyutil.c:705:6: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation]
      country = CERT_GetCountryName(subject);
      ^~~~~~~
keyutil.c:702:9: note: ...this 'if' clause, but it is not
         if (!state)
         ^~
cc1: all warnings being treated as errors
error: Bad exit status from /var/tmp/rpm-tmp.7FLViK (%build)

This seems to be triggered by GCC 6 that enabled a new warnings.