Build failed with --enable-debug

[xh4]

Gerbil version: c60d451
OS: Ubuntu 22.04.2 LTS (5.15.146.1-microsoft-standard-WSL2 x86_64)

How to reproduce:

./configure --enable-debug
make

...
making core in lib
make[3]: Entering directory '/home/xh/gerbil/src/gambit/lib'
LD_LIBRARY_PATH=..:/home/xh/gerbil/build/lib ../gsc-boot -:~~bin=../bin,~~lib=../lib,~~include=../incl
ude -f -c  -prelude "(define-cond-expand-feature|enable-type-checking|)(define-cond-expand-feature|dis
able-auto-forcing|)(define-cond-expand-feature|enable-sharp-dot|)(define-cond-expand-feature|enable-bi
gnum|)(define-cond-expand-feature|enable-ratnum|)(define-cond-expand-feature|enable-cpxnum|)(define-co
nd-expand-feature|enable-s8vector|)(define-cond-expand-feature|enable-u16vector|)(define-cond-expand-f
eature|enable-s16vector|)(define-cond-expand-feature|enable-u32vector|)(define-cond-expand-feature|ena
ble-s32vector|)(define-cond-expand-feature|enable-u64vector|)(define-cond-expand-feature|enable-s64vec
tor|)(define-cond-expand-feature|enable-f32vector|)(define-cond-expand-feature|disable-smp|)(##include
\"../lib/header.scm\")" _io.scm
Segmentation fault
make[3]: *** [makefile:183: _io.c] Error 139
make[3]: Leaving directory '/home/xh/gerbil/src/gambit/lib'
make[2]: *** [makefile:544: core-recursive] Error 1 
make[2]: Leaving directory '/home/xh/gerbil/src/gambit'
make[1]: *** [makefile:142: from-scratch] Error 2
make[1]: Leaving directory '/home/xh/gerbil/src/gambit'
>>> Installing Gambit to /home/xh/gerbil/build
cp: cannot stat 'gambit/gsi/gsi': No such file or directory
cp: cannot stat 'gambit/gsc/gsc': No such file or directory
'gambit/bin/gambuild-C' -> '/home/xh/gerbil/build/bin/gambuild-C'
'gambit/include/gambit.h' -> '/home/xh/gerbil/build/include/gambit.h'
'gambit/include/gambit-not409005.h' -> '/home/xh/gerbil/build/include/gambit-not409005.h'
'gambit/lib/_eval#.scm' -> '/home/xh/gerbil/build/lib/_eval#.scm'
'gambit/lib/_fifo#.scm' -> '/home/xh/gerbil/build/lib/_fifo#.scm'
'gambit/lib/_gambit#.scm' -> '/home/xh/gerbil/build/lib/_gambit#.scm'
'gambit/lib/_io#.scm' -> '/home/xh/gerbil/build/lib/_io#.scm'
'gambit/lib/_kernel#.scm' -> '/home/xh/gerbil/build/lib/_kernel#.scm'
'gambit/lib/_module#.scm' -> '/home/xh/gerbil/build/lib/_module#.scm'
'gambit/lib/_nonstd#.scm' -> '/home/xh/gerbil/build/lib/_nonstd#.scm'
'gambit/lib/_num#.scm' -> '/home/xh/gerbil/build/lib/_num#.scm'
'gambit/lib/_optional#.scm' -> '/home/xh/gerbil/build/lib/_optional#.scm'
'gambit/lib/_repl#.scm' -> '/home/xh/gerbil/build/lib/_repl#.scm'
'gambit/lib/_std#.scm' -> '/home/xh/gerbil/build/lib/_std#.scm'
'gambit/lib/_system#.scm' -> '/home/xh/gerbil/build/lib/_system#.scm'
'gambit/lib/_thread#.scm' -> '/home/xh/gerbil/build/lib/_thread#.scm'
'gambit/lib/gambit#.scm' -> '/home/xh/gerbil/build/lib/gambit#.scm'
'gambit/lib/r4rs#.scm' -> '/home/xh/gerbil/build/lib/r4rs#.scm'
'gambit/lib/r5rs#.scm' -> '/home/xh/gerbil/build/lib/r5rs#.scm'
'gambit/lib/r7rs#.scm' -> '/home/xh/gerbil/build/lib/r7rs#.scm'
'gambit/lib/_define-syntax.scm' -> '/home/xh/gerbil/build/lib/_define-syntax.scm'
'gambit/gsc/_arm#.scm' -> '/home/xh/gerbil/build/lib/_arm#.scm'
'gambit/gsc/_asm#.scm' -> '/home/xh/gerbil/build/lib/_asm#.scm'
'gambit/gsc/_assert#.scm' -> '/home/xh/gerbil/build/lib/_assert#.scm'
'gambit/gsc/_codegen#.scm' -> '/home/xh/gerbil/build/lib/_codegen#.scm'
'gambit/gsc/_riscv#.scm' -> '/home/xh/gerbil/build/lib/_riscv#.scm'
'gambit/gsc/_x86#.scm' -> '/home/xh/gerbil/build/lib/_x86#.scm'
cp: cannot stat 'gambit/lib/_gambit.c': No such file or directory
[*] Compiling bootstrap gxi shim
[*] Building Gerbil bootstrap
>>> preparing bootstrap
>>> compiling bootstrap gerbil
./build.sh: 181: gsi: not found

[vyzo]

gambit segfaulted compiling itself, interesting.

@feeley any ideas what happened here?