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# float_h.m4 serial 7
dnl Copyright (C) 2007, 2009-2011 Free Software Foundation, 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_FLOAT_H],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST])
FLOAT_H=
REPLACE_FLOAT_LDBL=0
case "$host_os" in
aix* | beos* | openbsd* | mirbsd* | irix*)
FLOAT_H=float.h
;;
freebsd*)
case "$host_cpu" in
changequote(,)dnl
i[34567]86 )
changequote([,])dnl
FLOAT_H=float.h
;;
x86_64 )
# On x86_64 systems, the C compiler may still be generating
# 32-bit code.
AC_EGREP_CPP([yes],
[#if defined __LP64__ || defined __x86_64__ || defined __amd64__
yes
#endif],
[],
[FLOAT_H=float.h])
;;
esac
;;
esac
case "$host_os" in
aix* | freebsd*)
if test -n "$FLOAT_H"; then
REPLACE_FLOAT_LDBL=1
fi
;;
esac
if test -n "$FLOAT_H"; then
gl_NEXT_HEADERS([float.h])
fi
AC_SUBST([FLOAT_H])
AM_CONDITIONAL([GL_GENERATE_FLOAT_H], [test -n "$FLOAT_H"])
])
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