If that rings a bell to anyone of a possible dependency missing I'd appreciate the feedback. Same pre2 setup built last year, it is not building anymore. pre3 last commit also fails with the same exact error content. ... ld: acpi/xsdt.o:/src/syslinux/src/syslinux/com32/gpllib/../gplinclude/memory.h:40: multiple definition of `e820_types'; memory.o:/src/syslinux/src/syslinux/com32/gpllib/../gplinclude/memory.h:40: first defined here make[4]: *** [/src/syslinux/src/syslinux/com32/gpllib/Makefile:27: libgpl.elf] Error 1 make[4]: Leaving directory '/src/syslinux/src/syslinux/bios/com32/gpllib' make[3]: *** [/src/syslinux/src/syslinux/com32/Makefile:13: gpllib] Error 2 make[3]: Leaving directory '/src/syslinux/src/syslinux/bios/com32' make[2]: *** [/src/syslinux/src/syslinux/Makefile:288: com32] Error 2 make[2]: Leaving directory '/src/syslinux/src/syslinux/bios' make[1]: *** [/src/syslinux/src/syslinux/Makefile:257: bios] Error 2 make[1]: Leaving directory '/src/syslinux/src/syslinux' make: *** [Makefile:102: bios] Error 2 Here is a list of sw/libs installed asciidoc 9.1.1 binutils 2.36.1 db 5.3.28 diffutils 3.8 flex 2.6.4 gc 8.2.0 gcc 11.1.0 gettext 0.21 git 2.34.1 glib2 2.70.2 glibc 2.33 groff 1.22.4 guile 2.2.7 icu 70.1 lib32-gcc-libs 11.1.0 lib32-glibc 2.33 libcroco 0.6.13 libtool 2.4.6+42+gb88cebd5 libxml2 2.9.12 m4 1.4.19 make 4.3-03 nasm 2.15.05 patch 2.7.6 perl 5.34.0 pkgconf 1.8.0 python 3.10.1 texinfo 6.8 upx 3.96