Shulou(Shulou.com)06/03 Report--

Background

Error compiling bison

Configure.ac:233: error: possibly undefined macro: AC_PROG_GNU_M4

If this token and others are legitimate, please use m4_pattern_allow.

See the Autoconf documentation.

Autoreconf: / usr/local/bin/autoconf failed with exit status: 1

. / bootstrap: autoreconf failed

Bison-3.4/m4/m4.m4 defines the AC_PROG_GNU_M4 macro definition

# AC_PROG_GNU_M4

#-

# Check for GNU M4, at least 1.4.6 (all earlier versions had bugs in

# trace support and regexp support):

# https://lists.gnu.org/archive/html/bug-gnu-utils/2006-11/msg00096.html

# https://lists.gnu.org/archive/html/bug-autoconf/2009-07/msg00023.html

# Also, check whether-- error-output (through 1.4.x) or--debugfile (2.0)

# is supported, and AC_SUBST M4_DEBUGFILE accordingly.

# Also avoid versions of m4 that trigger strstr bugs.

AC_DEFUN ([AC_PROG_GNU_M4]

[AC_ARG_VAR ([M4], [Location of GNU M4 1.4.6 or later. Defaults to the first

Program of 'm4percent, 'gm4', or' gnum4' on PATH that meets Autoconf needs.])

AC_CACHE_CHECK ([for GNU M4 that supports accurate traces], [ac_cv_path_M4]

[rm-f conftest.m4f

Ac_had_posixly_correct=$ {POSIXLY_CORRECT:+yes}

AS_UNSET ([POSIXLY_CORRECT])

AC_PATH_PROGS_FEATURE_CHECK ([M4], [M4 gm4 gnum4]

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