It was not present on 2.3.7, last that I packaged.
/pub/devel/lyx/lyx-2.4.3-1.x86_64/src/lyx-2.4.3/src/support/lassert.cpp:29:10: fatal error: execinfo.h: No such file or directory
29 | #include <execinfo.h> | ^~~~~~~~~~~~ https://www.gnu.org/software/libc/manual/html_node/Backtraces.html For what I see <execinfo.h> is GLIBC specific and not present on Newlib that is used by Cygwin, so a test should be added before using such header. Regards Marco -- lyx-devel mailing list lyx-devel@lists.lyx.org https://lists.lyx.org/mailman/listinfo/lyx-devel