Configure reports error detecting OpenSSL 3 headers

[rsbeckerca]

When configure runs, the following is reported:

checking for OpenSSL headers version... sed: -e expression #1, char 0: no previous regular expression
unknown - 0x

I cannot find this error in config.log - stderr is not captured for this sed instance. This does not actually impact the final result.

I did this

CPPFLAGS="-D_XOPEN_SOURCE_EXTENDED=1 -WIEEE_float -I/usr/local-ssl3.0_32/openssl/include" LDFLAGS="-L/usr/local-ssl3.0_32/lib" ./configure --prefix=/usr/local-ssl3.0 --with-ssl=/usr/local-ssl3.0_32 --with-ca-path=/usr/local-ssl3.0/ssl/certs --disable-pthreads --disable-threaded-resolver --enable-ipv6

I expected the following

The OpenSSL version in the header displayed, but I understand that it is more complex than in version 1.

curl/libcurl version

curl 7.79.1 (nsx-tandem-nsk) libcurl/7.79.1 OpenSSL/3.0.0 zlib/1.2.8
Release-Date: 2021-09-22
Protocols: dict file ftp ftps gopher gophers http https imap imaps mqtt pop3 pop3s rtsp smtp smtps telnet tftp
Features: alt-svc HSTS HTTPS-proxy IPv6 libz NTLM NTLM_WB SSL TLS-SRP UnixSockets

operating system

NONSTOP_KERNEL mysys L20 10 NSX-D NSX NSX-D NonStop Kernel

[bagder]

I would presume it is the sed line added in commit f09030b but that works on all the systems I've seen it run on so I can't really tell why it causes a problem for you.

[rsbeckerca]

I would presume it is the sed line added in commit f09030b but that works on all the systems I've seen it run on so I can't really tell why it causes a problem for you.

I have tried the sed command from that commit, with no trouble. The issue is that the command is being executed inside a sub-shell, so ksh needs a double escape for ", as in \\". Instead of sed s/\"//g, could you use a more stable sed 's/"//g' instead? I can provide the simple Pull Request, if desired.

[bagder]

See #7764

[rsbeckerca]

See #7764

I applied the change and manually to configure:

checking for OpenSSL headers version... 3.0.0 - 0x300

That looks good. Thanks.

[bagder]

excellent!