Disabling zstd results in empty state in configure output

[mback2k]

I did this

./configure --without-zstd

  curl version:     7.72.0-DEV
  SSL:              enabled (Windows-native, OpenSSL)
  SSH:              enabled (libSSH2)
  zlib:             no      (--with-zlib)
  brotli:           no      (--with-brotli)
  zstd:
  GSS-API:          no      (--with-gssapi)
  TLS-SRP:          enabled
  resolver:         POSIX threaded
  IPv6:             enabled
  Unix sockets:     no      (--enable-unix-sockets)
  IDN:              enabled (Windows-native)
  Build libcurl:    Shared=yes, Static=yes
  Built-in manual:  no      (--enable-manual)
  --libcurl option: enabled (--disable-libcurl-option)
  Verbose errors:   enabled (--disable-verbose)
  Code coverage:    disabled
  SSPI:             enabled
  ca cert bundle:   no
  ca cert path:     no
  ca fallback:      no
...

I expected the following

I expected a "no" behind "zstd:" instead of nothing.

curl/libcurl version

current master

[mback2k]

@gvollant please take a look.

[gvollant]

pehaps anything like

gillesvollant@gv-w81x64:/mnt/n/devN$ diff /mnt/n/forkcurl/configure.ac /mnt/s/curl/configure.ac
149a150

curl_zstd_msg="no (--with-zstd)"
`

*** /mnt/n/forkcurl/configure.ac 2020-07-12 18:16:50.798299000 +0200
--- /mnt/s/curl/configure.ac 2020-07-25 02:06:04.142077000 +0200

---

*** 147,152 ****
--- 147,153 ----
curl_ssh_msg="no (--with-{libssh,libssh2})"
curl_zlib_msg="no (--with-zlib)"
curl_brotli_msg="no (--with-brotli)"

• curl_zstd_msg="no (--with-zstd)"
  curl_gss_msg="no (--with-gssapi)"
  curl_tls_srp_msg="no (--enable-tls-srp)"
  curl_res_msg="default (--enable-ares / --enable-threaded-resolver)"

[bagder]

@gvollant yes, seems accurate!