Bug#1111524: texlive-bin: Fix ftbfs on hurd-any

[Samuel Thibault <sthibault@debian.org>]

Hello,

Santiago Vila, le mer. 20 août 2025 20:05:30 +0200, a ecrit:
> Samuel Thibault wrote:
> > Actually, I wonder how it works by luck on linux-any
> 
> Hi. I also wonder the same. In my setup, it fails to build 100% of the
> time when I try on systems with 1 CPU, so this is not really
> architecture-specific.
> 
> One LLM told me this is "the classic VPATH + ylwrap problem: automake
> expects sources in srcdir but the generated files must be written in
> builddir" and suggested this:
> 
> --- texlive-bin.orig/texk/detex/Makefile.am
> +++ texlive-bin/texk/detex/Makefile.am
> @@ -28,6 +28,9 @@ detex_SOURCES = \
>         @DETEX_TREE@/detex.h \
> 	        @DETEX_TREE@/detex.l
> 		 
> +# Ensure the flex-generated source is treated as a built file
> +BUILT_SOURCES = @DETEX_TREE@/detex.c

That won't change the problem: it's the build of detex-src/detex.c that
fails, because it misses detex-src/$(am__dirstamp)

But the LLM suggestion is not completely idiotic, it's just shifted
because it just took the common issue rather than actually understanding
the real issue: adding

BUILT_SOURCES = detex-src/$(am__dirstamp)

makes the build go fine because it tells automake to make sure to build
this directory before anything else.

Samuel