This is a follow up question of this question: How to use siunitx and tabularx together?
Updating to texlive 2015 (with siunitx 2.6h) seems to have broken the accepted answer. So the question is
How to make siunitx and X column type work together for the very last modification introduced (possibly) in texlive 2015?
Broken MWE
\documentclass{article}
\usepackage{array}
\usepackage{tabularx}
\usepackage{siunitx}
\begingroup
% Allow `_` and `:` in macro names (LaTeX3 style)
\catcode`\_=11
\catcode`\:=11
% Internal code of `S`
\gdef\tabularxcolumn#1{%
>{\siunitx_table_collect_begin:Nn S{} }%
p{#1}% <- this is different (is `c` in normal `S`)
<{\siunitx_table_print:}%
}
\endgroup
\begin{document}
\begin{tabularx}{\textwidth}{p{1.5cm} XXX}
bla & 1.23 & 4.5 & 67.89 \\
bla & 1.2 & 4.50 & 7.89 \\
bla & .2 & .50 & 67.8 \\
\end{tabularx}
\end{document}
Output error:
! Undefined control sequence.
<template> ...\TX@col@width }\siunitx_table_collect_begin:Nn
S{} \ignorespaces
If you consider that this is a duplicate, I will promptly delete this question as soon as someone will add an up-to-date answer to the other question.
