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libiconv v1.14

    1: # alloca.m4 serial 4 (gettext-0.18.2)
    2: dnl Copyright (C) 2002-2003, 2006, 2011 Free Software Foundation, Inc.
    3: dnl This file is free software; the Free Software Foundation
    4: dnl gives unlimited permission to copy and/or distribute it,
    5: dnl with or without modifications, as long as this notice is preserved.
    6: 
    7: AC_DEFUN([gl_FUNC_ALLOCA],
    8: [
    9:   dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
   10:   AC_REQUIRE([AC_PROG_CPP])
   11:   AC_REQUIRE([AC_PROG_EGREP])
   12: 
   13:   AC_REQUIRE([AC_FUNC_ALLOCA])
   14:   if test $ac_cv_func_alloca_works = no; then
   15:     gl_PREREQ_ALLOCA
   16:   fi
   17: 
   18:   # Define an additional variable used in the Makefile substitution.
   19: 
   20:   AC_EGREP_CPP([Need own alloca], [
   21: #if defined __GNUC__ || defined _MSC_VER || !HAVE_ALLOCA_H
   22:   Need own alloca
   23: #endif
   24:     ],
   25:     ALLOCA_H=alloca.h,
   26:     ALLOCA_H=)
   27:   AC_SUBST([ALLOCA_H])
   28:   AM_CONDITIONAL([GL_GENERATE_ALLOCA_H], [test -n "$ALLOCA_H"])
   29: ])
   30: 
   31: # Prerequisites of lib/alloca.c.
   32: # STACK_DIRECTION is already handled by AC_FUNC_ALLOCA.
   33: AC_DEFUN([gl_PREREQ_ALLOCA], [
   34:   AC_CHECK_HEADERS_ONCE(stdlib.h string.h)
   35:   :
   36: ])