The following error appeared on the autobuilder for host using
host-gcc15:
```
p11_attr.c: In function 'pkcs11_addattr_bool':
p11_attr.c:126:25: error: expected identifier or '(' before 'true'
126 | static CK_BBOOL true = CK_TRUE;
| ^~~~
p11_attr.c:127:25: error: expected identifier or '(' before 'false'
127 | static CK_BBOOL false = CK_FALSE;
| ^~~~~
p11_attr.c:128:44: error: lvalue required as unary '&' operand
128 | pkcs11_addattr(tmpl, type, value ? &true : &false, sizeof(CK_BBOOL));
| ^
p11_attr.c:128:52: error: lvalue required as unary '&' operand
128 | pkcs11_addattr(tmpl, type, value ? &true : &false, sizeof(CK_BBOOL));
| ^
make[3]: *** [Makefile:646: libp11_la-p11_attr.lo] Error 1
```
This is due to the change in the default C language version in GCC15.
This patch backport the upstream patch that fix that issue by not using
the keywords.
Fixes: https://autobuild.buildroot.org/results/da7/da71db9b04f181b9d2e72df73ac8541709f5a1d4
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit df60b105b4)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>