[sqlite] lempar.c search is invalid in lemon

[aikawayataro]

Description / Steps to reproduce the issue

Using lemon to generate parser from non-empty grammar: lemon grammar.l:

Can't open the template file "/usr/share/lemon/<...>/lempar.c".

Where <...> is the leftover value from pathsearch appended at 0010-sqlite-3.34.0-lemon.patch(18) by invalid path building.

Example grammar:

program ::= . {}

Expected behavior

Parser is successfully generated.

Actual behavior

Runtime errror.

Verification

• [X] I have verified that my MSYS2 is up-to-date before submitting the report (see https://www.msys2.org/docs/updating/)

Windows Version

MSYS_NT-10.0-19045

Are you willing to submit a PR?

Yes