=~ does not match

Configuration Information [Automatically generated, do not change]: Machine: i386 OS: freebsd5.3 Compiler: cc Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' -DCONF_OSTYPE='freebsd5.3' -DCONF_MACHTYPE='i386-portbld-freebsd5.3' -DCONF_VENDOR='portbld' -DLOCALEDIR='/usr/local/share/loc

Bash =~ regex doesn't work in 3.2.25 as in 3.1.17

Configuration Information [Automatically generated, do not change]: Machine: i386 OS: freebsd5.3 Compiler: cc Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i386' -DCONF_OSTYPE='freebsd5.3' -DCONF_MACHTYPE='i386-portbld-freebsd5.3' -DCONF_VENDOR='portbld' -DLOCALEDIR='/usr/local/share/loc