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- # getpagesize.m4 serial 10
- dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2021 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.
- 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*)
- 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])
- ])
- ])
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