[Gambas-user] about gambas3 3.8.0 in archlinux-like(manjaro) problem

[tsukuba GIMP user]

because manjaro pacman only have 3.7.1 version gambas
so i try goto gambas website download the tar.bz2 package to install gambas 3.8.0

but when i in console run ./reconf-all then console will be always loop in

<loop start>
  Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE (
[^ \t=:+{}]+)}/ at /usr/bin/automake line 3936. 
configure.ac:7: installing './compile' 
configure.ac:7: installing './config.guess' 
configure.ac:7: installing './config.sub' 
configure.ac:7: installing './install-sh' 
configure.ac:7: installing './missing' 
src/Makefile.am: installing './depcomp' 
autoreconf: Leaving directory `gb.db.mysql' 
autoreconf: configure.ac: adding subdirectory gb.db.odbc to autoreconf 
autoreconf: Entering directory `gb.db.odbc' 
libtoolize: putting auxiliary files in '.'. 
libtoolize: copying file './ltmain.sh' 
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE (
[^ \t=:+{}]+)}/ at /usr/bin/automake line 3936. 
configure.ac:9: installing './compile' 
configure.ac:9: installing './config.guess' 
configure.ac:9: installing './config.sub' 
configure.ac:9: installing './install-sh' 
configure.ac:9: installing './missing' 
src/Makefile.am: installing './depcomp' 
autoreconf: Leaving directory `gb.db.odbc' 
autoreconf: configure.ac: adding subdirectory gb.db.postgresql to autoreconf 
autoreconf: Entering directory `gb.db.postgresql' 
libtoolize: putting auxiliary files in '.'. 
libtoolize: copying file './ltmain.sh'
 <loop end and start loop in /usr/bin/automake line 3936>