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50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
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# getpagesize.m4 serial 10
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dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2018 Free Software Foundation,
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dnl Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_GETPAGESIZE],
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[
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AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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AC_REQUIRE([AC_CANONICAL_HOST])
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gl_CHECK_FUNC_GETPAGESIZE
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if test $gl_cv_func_getpagesize = no; then
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HAVE_GETPAGESIZE=0
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AC_CHECK_HEADERS([OS.h])
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if test $ac_cv_header_OS_h = yes; then
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HAVE_OS_H=1
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fi
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AC_CHECK_HEADERS([sys/param.h])
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if test $ac_cv_header_sys_param_h = yes; then
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HAVE_SYS_PARAM_H=1
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fi
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fi
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case "$host_os" in
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mingw*)
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REPLACE_GETPAGESIZE=1
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;;
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esac
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dnl Also check whether it's declared.
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dnl mingw has getpagesize() in libgcc.a but doesn't declare it.
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AC_CHECK_DECL([getpagesize], , [HAVE_DECL_GETPAGESIZE=0])
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])
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dnl Tests whether the function getpagesize() exists.
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dnl Sets gl_cv_func_getpagesize.
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AC_DEFUN([gl_CHECK_FUNC_GETPAGESIZE],
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[
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dnl We can't use AC_CHECK_FUNC here, because getpagesize() is defined as a
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dnl static inline function when compiling for Android 4.4 or older.
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AC_CACHE_CHECK([for getpagesize], [gl_cv_func_getpagesize],
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[AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <unistd.h>]],
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[[return getpagesize();]])
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],
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[gl_cv_func_getpagesize=yes],
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[gl_cv_func_getpagesize=no])
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])
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])
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