错误描述：
$yaourt -S dropbox
y
curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: http://curl.haxx.se/docs/sslcerts.html
curl performs SSL certificate verification by default, using a "bundle"
of Certificate Authority (CA) public keys (CA certs). If the default
bundle file isn't adequate, you can specify an alternate file
using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
the bundle, the certificate verification probably failed due to a
problem with the certificate (it might be expired, or the name might
not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
the -k (or --insecure) option.
大意应该是使用curl下载https网站文件时，证书出错了。
我的解决办法是：换成http链接进行下载 - -#
编辑PKGBUILD，将source中的https修改为http即可正常下载
以下是百度到的相关资料：
curl通过https下载的时候出错。
错误描述:
Downloading RVM from wayneeseguin branch stable
curl: (60) SSL certificate problem, verify that the CA cert is OK. Details:
error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
More details here: http://curl.haxx.se/docs/sslcerts.html
curl performs SSL certificate verification by default, using a “bundle”
of Certificate Authority (CA) public keys (CA certs). The default
bundle is named curl-ca-bundle.crt; you can specify an alternate file
using the –cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
the bundle, the certificate verification probably failed due to a
problem with the certificate (it might be expired, or the name might
not match the domain name in the URL).
If you’d like to turn off curl’s verification of the certificate, use
the -k (or –insecure) option.
Could not download ‘https://github.com/wayneeseguin/rvm/tarball/stable’.
Make sure your certificates are up to date as described above.
To continue in insecure mode run ‘echo insecure >> ~/.curlrc’.
经过原因查找，在验证证书的时候出现问题，是本地ssl判别证书太旧，导致报ssl证书错误
下载新的ssl本地判别文件
wget http://curl.haxx.se/ca/cacert.pem
并更名为ca-bundle.crt放置到默认目录
mv cacert.pem ca-bundle.crt | mv ca-bundle.crt /etc/pki/tls/certs/
或者curl –cacert cacert.pem 方式指定调用
转载于:https://www.cnblogs.com/tonykong/archive/2012/06/28/2568586.html
