Segmentation fault on library project build when exporting headers

I tried building a template project (c3c --template static-lib init <name>) with only one export, doing that results in a segmentation fault (along with a dump).

From what information I gathered it only occurs when building a project (specifically a library which has enabled header exporting) and not doing c3c static-lib <file> and it is related to an export with no explicit name (i.e. fn ... () @export and not fn ... () @export("export_name")), which the documentation clearly states as a valid thing to do.

I've had success with adding a null check (if (decl->extname && ...)) in this if condition: https://github.com/c3lang/c3c/blob/20b0bf43ada793d4d60e78493f9dd069393bfcb1/src/compiler/headers.c#L278

After that the export is correctly named and the project compiles.

I attach a link to the core dump. It was tested on the commit to which the aforementioned code line points to (which is the head of the dev branch at the time of writing). Be warned that the core dump extracts to a 4.4GB file. Google Drive

$ c3c -V
C3 Compiler Version:       0.6.2 (Pre-release, Aug 18 2024 16:57:38)
Installed directory:       /usr/local/bin/
LLVM version:              18.1.8
LLVM default target:       x86_64-pc-linux-gnu

$ uname -a
Linux papaya 6.8.8-arch1-1 #1 SMP PREEMPT_DYNAMIC Sun, 28 Apr 2024 15:59:47 +0000 x86_64 GNU/Linux

$ lsb_release -a
LSB Version:    n/a
Distributor ID: Arch
Description:    Arch Linux
Release:    rolling
Codename:   n/a

c3lang / c3c

Segmentation fault on library project build when exporting headers #1368