From 24669c55aed712c192b80456295cce122c7d5f73 Mon Sep 17 00:00:00 2001 From: Enze Li Date: Sat, 14 Jan 2023 11:33:48 +0800 Subject: libctf: update regexp to allow makeinfo to build document While trying to build gdb on latest openSUSE Tumbleweed, I noticed the following warning, checking for makeinfo... makeinfo --split-size=5000000 configure: WARNING: *** Makeinfo is too old. Info documentation will not be built. then I checked the version of makeinfo, it said, ====== $ makeinfo --version texi2any (GNU texinfo) 7.0.1 Copyright (C) 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ====== After digging a little bit, it became quite obvious that a dot is missing in regexp that makes it impossible to match versions higher than 7.0, and here's the solution: - | egrep 'texinfo[^0-9]*(6\.[3-9]|[7-9][0-9])' >/dev/null 2>&1; then + | egrep 'texinfo[^0-9]*(6\.[3-9]|[7-9]\.[0-9])' >/dev/null 2>&1; then However, Eli pointed out that the solution above has another problem: it will stop working when Texinfo 10.1 will be released. Meanwhile, he suggested to solve this problem permanently. That is, we don't care about the minor version for Texinfo > 6.9, we only care about the major version. In this way, the problem will be resolved permanently, thanks to Eli. libctf/ChangeLog: * configure: Regenerated. * configure.ac: Update regexp to match versions higher than 7.0. --- libctf/configure | 2 +- libctf/configure.ac | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/libctf/configure b/libctf/configure index c22f7df..a0e40f4 100755 --- a/libctf/configure +++ b/libctf/configure @@ -14864,7 +14864,7 @@ esac # We require texinfo to be 6.3 or later, for a working synindex # and validatemenus: otherwise we fall back to /bin/true. if ${MAKEINFO} --version \ - | egrep 'texinfo[^0-9]*(6\.[3-9]|[7-9][0-9])' >/dev/null 2>&1; then + | egrep 'texinfo[^0-9]*(6\.[3-9]|[7-9]|[1-6][0-9])' >/dev/null 2>&1; then build_info=yes else build_info= diff --git a/libctf/configure.ac b/libctf/configure.ac index 1d0cf4d..6a5eade 100644 --- a/libctf/configure.ac +++ b/libctf/configure.ac @@ -184,7 +184,7 @@ changequote(,) # We require texinfo to be 6.3 or later, for a working synindex # and validatemenus: otherwise we fall back to /bin/true. if ${MAKEINFO} --version \ - | egrep 'texinfo[^0-9]*(6\.[3-9]|[7-9][0-9])' >/dev/null 2>&1; then + | egrep 'texinfo[^0-9]*(6\.[3-9]|[7-9]|[1-6][0-9])' >/dev/null 2>&1; then build_info=yes else build_info= -- cgit v1.1