Description

We bumped m4 to version 1.4.20 to solve this issue.

Although other packages that use m4/1.4.19 still have this issue. One example is openal-soft, which has the dependency chain of:

libalsa/1.2.10 <- libtool/2.4.7 <-m4/1.4.19

Thus openal-soft will fail to compile because libasla fails to compile because libtool fails to compile because m4 fails to compile with gcc>=15.1

Package and Environment Details

• Package Name/Version: openalsoft/1.23.1
• Operating System+version: ndeavourOS Linux x86_64
• Compiler+version: gcc version 15.2.1 20250813
• Docker image: N/A
• Conan version: Conan version 2.19.1
• Python version: 3.13.7

Conan profile

[settings]
arch=x86_64
build_type=Release
compiler=gcc
compiler.cppstd=gnu17
compiler.libcxx=libstdc++11
compiler.version=15
os=Linux

Steps to reproduce

conan install .

Logs

Put your log output here