Bug#1042037: syslinux: FTBFS: main.c:33:8: error: unknown type name ‘jmp_buf’

Source: syslinux
Version: 3:6.04~git20190206.bf6db5b4+dfsg1-3
Severity: serious
Justification: FTBFS
Tags: trixie sid ftbfs

Hi,

During a rebuild of all packages in sid, your package failed to build
on amd64.


Relevant part (hopefully):
> gcc -I/usr/include/efi -I/usr/include/efi/ia32 -DEFI_FUNCTION_WRAPPER -fPIC -fshort-wchar -ffreestanding -fcommon -Wall -I/<<PKGBUILDDIR>>/com32/include -I/<<PKGBUILDDIR>>/com32/include/sys -I/<<PKGBUILDDIR>>/core/include -I/<<PKGBUILDDIR>>/core/ -m32 -march=i386 -I/<<PKGBUILDDIR>>/com32/lib/ -I/<<PKGBUILDDIR>>/com32/libutil/include -std=gnu99 -DELF_DEBUG -DSYSLINUX_EFI -I/<<PKGBUILDDIR>>/efi32 -W -Wall -Wstrict-prototypes  -D__COM32__ -D__FIRMWARE_EFI32__ -mno-red-zone -DLDLINUX=\"ldlinux.e32\" -fvisibility=hidden -Wno-unused-parameter -fno-stack-protector -Wno-strict-prototypes -DDATE_STR='"20200816"' -c -o main.o /<<PKGBUILDDIR>>/efi/main.c
> /<<PKGBUILDDIR>>/efi/main.c:33:8: error: unknown type name ‘jmp_buf’
>    33 | static jmp_buf load_error_buf;
>       |        ^~~~~~~
> /<<PKGBUILDDIR>>/efi/main.c: In function ‘local_boot’:
> /<<PKGBUILDDIR>>/efi/main.c:187:5: warning: implicit declaration of function ‘longjmp’ [-Wimplicit-function-declaration]
>   187 |     longjmp(&load_error_buf, 1);
>       |     ^~~~~~~
> /<<PKGBUILDDIR>>/efi/main.c: In function ‘build_gdt’:
> /<<PKGBUILDDIR>>/efi/main.c:905:82: warning: taking address of packed member of ‘struct dt_desc’ may result in an unaligned pointer value [-Waddress-of-packed-member]
>   905 |         status = emalloc(gdt.limit, __SIZEOF_POINTER__ , (EFI_PHYSICAL_ADDRESS *)&gdt.base);
>       |                                                                                  ^~~~~~~~~
> /<<PKGBUILDDIR>>/efi/main.c: In function ‘efi_main’:
> /<<PKGBUILDDIR>>/efi/main.c:1385:14: warning: implicit declaration of function ‘setjmp’ [-Wimplicit-function-declaration]
>  1385 |         if (!setjmp(&load_error_buf))
>       |              ^~~~~~
> make[5]: *** [/<<PKGBUILDDIR>>/mk/efi.mk:71: main.o] Error 1


The full build log is available from:
http://qa-logs.debian.net/2023/07/24/syslinux_6.04~git20190206.bf6db5b4+dfsg1-3_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

If you reassign this bug to another package, please mark it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects

If you fail to reproduce this, please provide a build log and diff it with mine
so that we can identify if something relevant changed in the meantime.