From ba44b87318ed89e489fa3ce0a5d66002afa2bd6c Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Fri, 12 Aug 2022 11:54:54 +0200
Subject: [PATCH] src/p11_attr.c: fix build with gcc 4.8

Fix the following build failure with gcc 4.8 raised since version 0.4.12
and
https://github.com/OpenSC/libp11/commit/639a4b6463278c0119a2ec60b261da3e5330fb33:

p11_attr.c: In function 'pkcs11_zap_attrs':
p11_attr.c:167:2: error: 'for' loop initial declarations are only allowed in C99 mode
  for (unsigned i = 0; i < 32; i++) {
  ^
p11_attr.c:167:2: note: use option -std=c99 or -std=gnu99 to compile your code

Fixes:
 - http://autobuild.buildroot.org/results/4391020fb5738cc8c26dc53783a6228bbf76473a

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Retrieved from:
https://github.com/OpenSC/libp11/commit/ba44b87318ed89e489fa3ce0a5d66002afa2bd6c]
---
 src/p11_attr.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/p11_attr.c b/src/p11_attr.c
index d49456ff..d425241a 100644
--- a/src/p11_attr.c
+++ b/src/p11_attr.c
@@ -162,9 +162,11 @@ void pkcs11_addattr_obj(PKCS11_TEMPLATE *tmpl, int type, pkcs11_i2d_fn enc, void
 
 void pkcs11_zap_attrs(PKCS11_TEMPLATE *tmpl)
 {
+	unsigned int i;
+
 	if (!tmpl->allocated)
 		return;
-	for (unsigned i = 0; i < 32; i++) {
+	for (i = 0; i < 32; i++) {
 		if (tmpl->allocated & (1<<i))
 			OPENSSL_free(tmpl->attrs[i].pValue);
 	}