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"no acceptable m4 could be found in \$PATH. GNU M4 1.4.6 or later is required; 1.4.16 or newer is recommended. GNU M4 1.4.15 uses a buggy replacement strstr on some systems. Glibc 2.9 - 2.12 and GNU M4 1.4.11 - 1.4.15 have another strstr bug." "$LINENO" 5 fi else ac_cv_path_M4=$M4 fi fi { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_M4" >&5 printf "%s\n" "$ac_cv_path_M4" >&6; } M4=$ac_cv_path_M4 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $ac_cv_path_M4 accepts --gnu" >&5 printf %s "checking whether $ac_cv_path_M4 accepts --gnu... 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"perl is not found" "$LINENO" 5 fi $PERL -e 'require 5.006;' || { as_fn_error $? "Perl 5.006 or better is required" "$LINENO" 5 } # Find out whether the system supports flock # Note this test does not try to find out whether it works with this # particular file system. It merely avoids us running flock on systems # where that bails out. { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $PERL Fcntl::flock is implemented" >&5 printf %s "checking whether $PERL Fcntl::flock is implemented... 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