1# Configure a replacement for <strings.h>. 2# serial 6 3 4# Copyright (C) 2007, 2009-2014 Free Software Foundation, Inc. 5# This file is free software; the Free Software Foundation 6# gives unlimited permission to copy and/or distribute it, 7# with or without modifications, as long as this notice is preserved. 8 9AC_DEFUN([gl_HEADER_STRINGS_H], 10[ 11 dnl Use AC_REQUIRE here, so that the default behavior below is expanded 12 dnl once only, before all statements that occur in other macros. 13 AC_REQUIRE([gl_HEADER_STRINGS_H_BODY]) 14]) 15 16AC_DEFUN([gl_HEADER_STRINGS_H_BODY], 17[ 18 AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) 19 20 gl_CHECK_NEXT_HEADERS([strings.h]) 21 if test $ac_cv_header_strings_h = yes; then 22 HAVE_STRINGS_H=1 23 else 24 HAVE_STRINGS_H=0 25 fi 26 AC_SUBST([HAVE_STRINGS_H]) 27 28 dnl Check for declarations of anything we want to poison if the 29 dnl corresponding gnulib module is not in use. 30 gl_WARN_ON_USE_PREPARE([[ 31 /* Minix 3.1.8 has a bug: <sys/types.h> must be included before 32 <strings.h>. */ 33 #include <sys/types.h> 34 #include <strings.h> 35 ]], [ffs strcasecmp strncasecmp]) 36]) 37 38AC_DEFUN([gl_STRINGS_MODULE_INDICATOR], 39[ 40 dnl Use AC_REQUIRE here, so that the default settings are expanded once only. 41 AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) 42 gl_MODULE_INDICATOR_SET_VARIABLE([$1]) 43]) 44 45AC_DEFUN([gl_HEADER_STRINGS_H_DEFAULTS], 46[ 47 GNULIB_FFS=0; AC_SUBST([GNULIB_FFS]) 48 dnl Assume proper GNU behavior unless another module says otherwise. 49 HAVE_FFS=1; AC_SUBST([HAVE_FFS]) 50 HAVE_STRCASECMP=1; AC_SUBST([HAVE_STRCASECMP]) 51 HAVE_DECL_STRNCASECMP=1; AC_SUBST([HAVE_DECL_STRNCASECMP]) 52]) 53