While compiling PHP7 with curl I got this message in my log:

/php-src/ext/curl/interface.c:74:5: warning: #warning "libcurl was compiled with SSL support, but configure could not determine which" "library was used; thus no SSL crypto locking callbacks will be set, which may " "cause random crashes on SSL requests" [-Wcpp] warning \ ^

After that ki installed OpenSSL and added that to my configure Parameters too, but that doesn't solve my issue.

I am not able to get the clue... would be great to get a hint from the community.

Thank you! Chris

  • Libssl-dev is already installed. – Christian Sturm Oct 5 '17 at 19:47
  • You solved that issue ? – Stephane Feb 8 '19 at 9:27

You can try install curl with openssl support from source:

yum install -y openssl-devel
wget https://curl.haxx.se/download/curl-7.65.3.tar.gz
tar xvfz curl-7.65.3.tar.gz
cd curl-7.65.3
./configure --with-ssl
make install

(maybe needed restart your console)

# curl -V
curl 7.65.3 (x86_64-pc-linux-gnu) libcurl/7.65.3 OpenSSL/1.0.2k-fips zlib/1.2.7
Release-Date: 2019-07-19
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp
Features: AsynchDNS HTTPS-proxy IPv6 Largefile libz NTLM NTLM_WB SSL UnixSockets
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