| # getpagesize.m4 | |
| # serial 11 | |
| dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2026 Free Software Foundation, | |
| dnl Inc. | |
| dnl This file is free software; the Free Software Foundation | |
| dnl gives unlimited permission to copy and/or distribute it, | |
| dnl with or without modifications, as long as this notice is preserved. | |
| dnl This file is offered as-is, without any warranty. | |
| AC_DEFUN([gl_FUNC_GETPAGESIZE], | |
| [ | |
| AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) | |
| AC_REQUIRE([AC_CANONICAL_HOST]) | |
| gl_CHECK_FUNC_GETPAGESIZE | |
| if test $gl_cv_func_getpagesize = no; then | |
| HAVE_GETPAGESIZE=0 | |
| AC_CHECK_HEADERS([OS.h]) | |
| if test $ac_cv_header_OS_h = yes; then | |
| HAVE_OS_H=1 | |
| fi | |
| AC_CHECK_HEADERS([sys/param.h]) | |
| if test $ac_cv_header_sys_param_h = yes; then | |
| HAVE_SYS_PARAM_H=1 | |
| fi | |
| fi | |
| case "$host_os" in | |
| mingw* | windows*) | |
| REPLACE_GETPAGESIZE=1 | |
| ;; | |
| esac | |
| dnl Also check whether it's declared. | |
| dnl mingw has getpagesize() in libgcc.a but doesn't declare it. | |
| AC_CHECK_DECL([getpagesize], , [HAVE_DECL_GETPAGESIZE=0]) | |
| ]) | |
| dnl Tests whether the function getpagesize() exists. | |
| dnl Sets gl_cv_func_getpagesize. | |
| AC_DEFUN([gl_CHECK_FUNC_GETPAGESIZE], | |
| [ | |
| dnl We can't use AC_CHECK_FUNC here, because getpagesize() is defined as a | |
| dnl static inline function when compiling for Android 4.4 or older. | |
| AC_CACHE_CHECK([for getpagesize], [gl_cv_func_getpagesize], | |
| [AC_LINK_IFELSE( | |
| [AC_LANG_PROGRAM( | |
| [[#include <unistd.h>]], | |
| [[return getpagesize();]]) | |
| ], | |
| [gl_cv_func_getpagesize=yes], | |
| [gl_cv_func_getpagesize=no]) | |
| ]) | |
| ]) |