--- texlive-20220321-source/texk/bibtex-x/configure.ac	2022-02-05 23:45:39.000000000 +0100
+++ texlive-20220321-source.new/texk/bibtex-x/configure.ac	2022-10-04 22:46:56.553162141 +0200
@@ -29,6 +29,7 @@
 KPSE_CXX_HACK
 
 AC_SEARCH_LIBS([pow], [m])
+KPSE_KPATHSEA_FLAGS
 
 if test "x$enable_bibtexu" != xno; then
   dnl As of ICU 65.1, ICU requires -lpthread on x86_64-linux and, most