Error: undeclared identifier: 'expr'

[MA Jianjun]

for Nim 0.18.1:

.nimble\pkgs\libsodium-0.3.0\libsodium\sodium.nim(31, 31) Error: undeclared identifier: 'expr'

[Federico Ceratto]

@majj there's no 0.18.1 release. Do you mean devel?

[MA Jianjun]

yes，clone Nim 0.18.1 from github.

make it works by change expr to untyped

template cpt(target: string): untyped = cast[ptr cuchar](cstring(target))

[Juan Carlos]

This still happens with Stable now.

Error:

... ../../../home/juan/.nimble/pkgs/libsodium-0.3.0/libsodium/sodium.nim(31, 31) Error: undeclared identifier: 'expr'

Full error:

$ nimble install httpauth 
Downloading https://github.com/FedericoCeratto/nim-httpauth using git
  Verifying dependencies for httpauth@0.1.0
 Installing libsodium@any version
Downloading https://github.com/FedericoCeratto/nim-libsodium using git
  Verifying dependencies for libsodium@0.3.0
 Installing libsodium@0.3.0
   Success: libsodium installed successfully.
 Installing httpauth@0.1.0
   Building httpauth/httpauth using c backend
    Prompt: Build failed for 'httpauth@0.1.0', would you like to try installing 'httpauth@#head' (latest unstable)? [y/N]
    Answer: y
Downloading https://github.com/FedericoCeratto/nim-httpauth using git
  Verifying dependencies for httpauth@#head
      Info: Dependency on libsodium@any version already satisfied
  Verifying dependencies for libsodium@0.3.0
 Installing httpauth@#head
   Building httpauth/httpauth using c backend
       Tip: 20 messages have been suppressed, use --verbose to show them.
     Error: Build failed for package: httpauth
        ... Details:
        ... Execution failed with exit code 1
        ... Command: "/home/juan/.nimble/bin/nim" c --noBabelPath -d:release --path:"/home/juan/.nimble/pkgs/libsodium-0.3.0"  -o:"/tmp/nimble_23101/githubcom_FedericoCerattonimhttpauth_#head/httpauth" "/tmp/nimble_23101/githubcom_FedericoCerattonimhttpauth_#head/httpauth.nim"
        ... Output: Hint: used config file '/home/juan/.choosenim/toolchains/nim-#devel/config/nim.cfg' [Conf]
        ... Hint: system [Processing]
        ... Hint: httpauth [Processing]
        ... Hint: asyncdispatch [Processing]
        ... Hint: os [Processing]
        ... Hint: strutils [Processing]
        ... Hint: parseutils [Processing]
        ... Hint: math [Processing]
        ... Hint: bitops [Processing]
        ... Hint: algorithm [Processing]
        ... Hint: unicode [Processing]
        ... Hint: times [Processing]
        ... Hint: options [Processing]
        ... Hint: typetraits [Processing]
        ... Hint: strformat [Processing]
        ... Hint: macros [Processing]
        ... Hint: posix [Processing]
        ... Hint: ospaths [Processing]
        ... Hint: tables [Processing]
        ... Hint: hashes [Processing]
        ... Hint: heapqueue [Processing]
        ... Hint: lists [Processing]
        ... Hint: asyncstreams [Processing]
        ... Hint: asyncfutures [Processing]
        ... Hint: deques [Processing]
        ... Hint: cstrutils [Processing]
        ... Hint: nativesockets [Processing]
        ... Hint: net [Processing]
        ... Hint: sets [Processing]
        ... Hint: selectors [Processing]
        ... Hint: epoll [Processing]
        ... Hint: cookies [Processing]
        ... Hint: strtabs [Processing]
        ... Hint: logging [Processing]
        ... Hint: httpcore [Processing]
        ... Hint: json [Processing]
        ... Hint: lexbase [Processing]
        ... Hint: streams [Processing]
        ... Hint: parsejson [Processing]
        ... Hint: subexes [Processing]
        ... httpauth.nim(22, 17) Warning: using '.' instead of '/' in import paths is deprecated [Deprecated]
        ... Hint: sodium [Processing]
        ... Hint: sodium_sizes [Processing]
        ... ../../../home/juan/.nimble/pkgs/libsodium-0.3.0/libsodium/sodium.nim(31, 31) Error: undeclared identifier: 'expr'