[GNU Libtool](https://www.gnu.org/software/libtool/) prior to `74c8993c` (first included in version 2.2.7b) did not sort the find output. It appears that many packages (including all [GNU GCC](https://gcc.gnu.org/) versions so far) are bootstrapped with a version prior to this.
[GNU Libtool](https://www.gnu.org/software/libtool/) prior to `74c8993c` (first
included in version 2.2.7b) did not sort the find output. It appears that many
packages are bootstrapped with a version prior to this.
Confusingly, although [GNU GCC](https://gcc.gnu.org/)'s ltmain.sh claims to have
been generated by libtool 2.2.7a, GNU GCC actually maintains their own version
of libtool.m4 and ltmain.sh, which fixed this issue independently in
`d41cd173e23`. This aforementioned change was first included in version 9.1.0,
meaning that the reproducibility issue remains in GCC versions below that.
