bad interpreter: No such file or directory

I'm building autoconf-2.68. I'm not very familiar with this tool. However, after analysing the Makefiles, I find that the build fails when running the script autoconf-2.68/bin/autom4te. I'm having this error: bash: ./autom4te :/home/user/workspace/output: bad interpreter: No such file or directory Some analysis that I have done echo $SHELL /bin/bash In the autom4te I find this line in the BEGIN function $ENV{'SHELL'} = '/bin/sh' if ($^O eq 'dos'); Could this cause a problem? Any idea to resolve? **Edit** The first lines of autom4te are: #! /home/user/Workspace/output/xx_yyyyyyy_pp88_tttttt_uuuuuuu_aaa_bbbbbbb/host/usr/bin/perl -w # -*- perl -*- # Generated from autom4te.in; do not edit by hand. eval 'case $# in 0) exec /home/user/Workspace/output/xx_yyyyyyy_pp88_tttttt_uuuuuuu_aaa_bbbbbbb/host/usr/bin/perl -S "$0";; *) exec /home/user/Workspace/output/xx_yyyyyyy_pp88_tttttt_uuuuuuu_aaa_bbbbbbb/host/usr/bin/perl -S "$0" "$@";; esac' if 0; The script caller: autoconf.in: $(srcdir)/autoconf.as $(m4sh_m4f_dependencies) $(MY_AUTOM4TE) --language M4sh --cache '' --melt $(srcdir)/autoconf.as -o $@ MY_AUTOM4TE is defined as: MY_AUTOM4TE = \ autom4te_perllibdir='$(top_srcdir)'/lib \ AUTOM4TE_CFG='$(AUTOM4TE_CFG)' $(top_builddir)/bin/autom4te \ -B '$(top_builddir)'/lib -B '$(top_srcdir)'/lib # keep ` '