error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode - nettle-bugs

30 Dec 2018


      Building on my HiKey, which is Aarch64.
==========
$ gcc --version
gcc (Debian/Linaro 4.9.2-10+deb8u1) 4.9.2
Copyright (C) 2014 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
==========
gcc -I. -I/usr/local/include -DNDEBUG -DHAVE_CONFIG_H -g2 -O2 -fPIC
-ggdb3 -Wno-pointer-sign -Wall -W   -Wmissing-prototypes
-Wmissing-declarations -Wstrict-prototypes   -Wpointer-arith
-Wbad-function-cast -Wnested-externs -fpic -MT rsa-sign-tr.o -MD -MP
-MF rsa-sign-tr.o.d -c rsa-sign-tr.c \
&& true
gcc -I. -I/usr/local/include -DNDEBUG -DHAVE_CONFIG_H -g2 -O2 -fPIC
-ggdb3 -Wno-pointer-sign -Wall -W   -Wmissing-prototypes
-Wmissing-declarations -Wstrict-prototypes   -Wpointer-arith
-Wbad-function-cast -Wnested-externs -fpic -MT rsa-verify.o -MD -MP
-MF rsa-verify.o.d -c rsa-verify.c \
&& true
rsa-sign-tr.c: In function ‘sec_equal’:
rsa-sign-tr.c:243:3: error: ‘for’ loop initial declarations are only
allowed in C99 or C11 mode
   for (size_t i = 0; i < limbs; i++)
   ^
rsa-sign-tr.c:243:3: note: use option -std=c99, -std=gnu99, -std=c11
or -std=gnu11 to compile your code
Makefile:260: recipe for target 'rsa-sign-tr.o' failed
make[1]: *** [rsa-sign-tr.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/home/build/nettle-3.4.1'
Makefile:49: recipe for target 'all' failed
make: *** [all] Error 2