Error: execution of an encternal compiler program

[svolpe]

I'm using Linux (Manjaro) and when I try to build the neverwinter.nim project I get the below error. I do have gcc installed.

/home/shane/.cache/nim/nwn_resman_diff_r/@m..@s..@s..@s.nimble@spkgs2@sdocopt-0.7.0-60fda67c990733c58ca227a09277c8e8e9dbfa70@sdocopt.nim.c: In function ‘single_match__OOZOOZOOZOnimbleZpkgs50Zdocopt4548O55O48455448fda5455c575748555151c5356ca505055a4857505555c56e56e57dbfa5548Zdocopt_u2664’: /home/shane/.cache/nim/nwn_resman_diff_r/@m..@s..@s..@s.nimble@spkgs2@sdocopt-0.7.0-60fda67c990733c58ca227a09277c8e8e9dbfa70@sdocopt.nim.c:7058:51: error: assignment to ‘tyObject_PatterncolonObjectType___9aON3s9az3qySM2c5zQeNvHA *’ from incompatible pointer type ‘tyObject_ArgumentcolonObjectType___lnBup6gvVmsXvsJx9bLLwyg *’ [-Wincompatible-pointer-types] 7058 | colontmp_ = argument__OOZOOZOOZOnimbleZpkgs50Zdocopt4548O55O48455448fda5455c575748555151c5356ca505055a4857505555c56e56e57dbfa5548Zdocopt_u267(colontmpD__2, (*pattern).value); | ^ /home/shane/.cache/nim/nwn_resman_diff_r/@m..@s..@s..@s.nimble@spkgs2@sdocopt-0.7.0-60fda67c990733c58ca227a09277c8e8e9dbfa70@sdocopt.nim.c: In function ‘single_match__OOZOOZOOZOnimbleZpkgs50Zdocopt4548O55O48455448fda5455c575748555151c5356ca505055a4857505555c56e56e57dbfa5548Zdocopt_u2676’: /home/shane/.cache/nim/nwn_resman_diff_r/@m..@s..@s..@s.nimble@spkgs2@sdocopt-0.7.0-60fda67c990733c58ca227a09277c8e8e9dbfa70@sdocopt.nim.c:7281:59: error: assignment to ‘tyObject_PatterncolonObjectType___9aON3s9az3qySM2c5zQeNvHA *’ from incompatible pointer type ‘tyObject_CommandcolonObjectType___0e89asMPLZuLaJb4THRS5hQ *’ [-Wincompatible-pointer-types] 7281 | colontmp_ = command__OOZOOZOOZOnimbleZpkgs50Zdocopt4548O55O48455448fda5455c575748555151c5356ca505055a4857505555c56e56e57dbfa5548Zdocopt_u562(colontmpD__4, colontmpD__5); | ^ Error: execution of an external compiler program 'gcc -c -w -fmax-errors=3 -march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security -fstack-clash-protection -fcf-protection -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -pthread -I/home/shane/dev/nwn/neverwinter.nim/neverwinter/private/zstd/lib/common -I/home/shane/dev/nwn/neverwinter.nim/neverwinter/private/zstd/lib/decompress -I/home/shane/dev/nwn/neverwinter.nim/neverwinter/private/zstd/lib/compress -I/home/shane/dev/nwn/neverwinter.nim/neverwinter/private/zstd/lib/dictBuilder -I/home/shane/dev/nwn/neverwinter.nim/neverwinter/private/zstd/lib/legacy -O3 -fno-strict-aliasing -fno-ident -fno-math-errno -I/usr/lib/nim/lib -I/home/shane/dev/nwn/neverwinter.nim -o /home/shane/.cache/nim/nwn_resman_diff_r/@m..@s..@s..@s.nimble@spkgs2@sdocopt-0.7.0-60fda67c990733c58ca227a09277c8e8e9dbfa70@sdocopt.nim.c.o /home/shane/.cache/nim/nwn_resman_diff_r/@m..@s..@s..@s.nimble@spkgs2@sdocopt-0.7.0-60fda67c990733c58ca227a09277c8e8e9dbfa70@sdocopt.nim.c' failed with exit code: 1

[tinygiant98]

You can try adding this to your compilation command: --passC:"-Wno-incompatible-pointer-types". Worked for me on another environment, but might work with yours.

[svolpe]

@tinygiant98 That worked, thank you!

[hendrikgit]

If this is the issue I think it is it had something to do with nim itself and newer gcc versions. I worked around it once by just using clang instead. tinygiant98's solution seems better and is an actual solution not avoiding the problem.

[tinygiant98]

If this is the issue I think it is it had something to do with nim itself and newer gcc versions. I worked around it once by just using clang instead. tinygiant98's solution seems better and is an actual solution not avoiding the problem.

I have yet to identify the combination of versions/reasons where this occurs. For example, my travel setup and home setup have the exact same version of windows, gcc, nim and neverwinter on them, but I have to pass this argument on my travel computer and not on my home computer.

[squattingmonk]

It's docopt specifically that needs to be updated. There is an open PR for that.

@tinygiant98 Is it possible you have a global nim.cfg on one machine that is passing this flag for you?

[tinygiant98]

@tinygiant98 Is it possible you have a global nim.cfg on one machine that is passing this flag for you?

Unlikely. I've never set that flag anywhere but the command line. I'll look when I get a chance.

[tinygiant98]

Took a while to get back to this, but I don't have any global settings for this flag.