| # Configure a replacement for <strings.h>. |
| # serial 6 |
| |
| # Copyright (C) 2007, 2009-2021 Free Software Foundation, Inc. |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| AC_DEFUN([gl_HEADER_STRINGS_H], |
| [ |
| dnl Use AC_REQUIRE here, so that the default behavior below is expanded |
| dnl once only, before all statements that occur in other macros. |
| AC_REQUIRE([gl_HEADER_STRINGS_H_BODY]) |
| ]) |
| |
| AC_DEFUN([gl_HEADER_STRINGS_H_BODY], |
| [ |
| AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) |
| |
| gl_CHECK_NEXT_HEADERS([strings.h]) |
| if test $ac_cv_header_strings_h = yes; then |
| HAVE_STRINGS_H=1 |
| else |
| HAVE_STRINGS_H=0 |
| fi |
| AC_SUBST([HAVE_STRINGS_H]) |
| |
| dnl Check for declarations of anything we want to poison if the |
| dnl corresponding gnulib module is not in use. |
| gl_WARN_ON_USE_PREPARE([[ |
| /* Minix 3.1.8 has a bug: <sys/types.h> must be included before |
| <strings.h>. */ |
| #include <sys/types.h> |
| #include <strings.h> |
| ]], [ffs strcasecmp strncasecmp]) |
| ]) |
| |
| AC_DEFUN([gl_STRINGS_MODULE_INDICATOR], |
| [ |
| dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
| AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) |
| gl_MODULE_INDICATOR_SET_VARIABLE([$1]) |
| ]) |
| |
| AC_DEFUN([gl_HEADER_STRINGS_H_DEFAULTS], |
| [ |
| GNULIB_FFS=0; AC_SUBST([GNULIB_FFS]) |
| dnl Assume proper GNU behavior unless another module says otherwise. |
| HAVE_FFS=1; AC_SUBST([HAVE_FFS]) |
| HAVE_STRCASECMP=1; AC_SUBST([HAVE_STRCASECMP]) |
| HAVE_DECL_STRNCASECMP=1; AC_SUBST([HAVE_DECL_STRNCASECMP]) |
| ]) |