Duplicate symbol _x509_free on build ios

yun_gao · June 20, 2018, 9:00am

I have add paySDK in game,when building IOS target,error occurred.How can I solve it. help me

duplicate symbol _x509_free in:
iosinterface/frameworks/paySDK.framework/paySDK
bin/ios/Project/lib/i386/lime-legacy.a(988bb385_x509.o)

singmajesty · June 22, 2018, 7:51pm

I think this might be a part of OpenSSL, or another SSL library. Two parts of the project are both including this, so one of them will have to not include it, I think? I haven’t tried to resolve this problem on iOS a lot, but it’s a problem with statically-linked binaries.

I think I found it, here in project/lib/curl/axTLS from the lime-legacy project:

github.com

native-toolkit/curl/blob/7084474ab4eb76efa3ba1dc6eb4e407ae07a72ba/src/axTLS/ssl/x509.c#L226-L261


void x509_free(X509_CTX *x509_ctx)
{
X509_CTX *next;
int i;


if (x509_ctx == NULL)       /* if already null, then don't bother */
    return;


for (i = 0; i < X509_NUM_DN_TYPES; i++)
{
    free(x509_ctx->ca_cert_dn[i]);
    free(x509_ctx->cert_dn[i]);
}


free(x509_ctx->signature);


#ifdef CONFIG_SSL_CERT_VERIFICATION 
if (x509_ctx->digest)
{
    bi_free(x509_ctx->rsa_ctx->bi_ctx, x509_ctx->digest);

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There may be a way to exclude it here, so that when it links with the paySDK, it’s included and compiles/works

yun_gao · June 28, 2018, 10:49am

Thank for your reply. I have solved it:grinning: