# Copyright (C) 1993-2018 Free Software Foundation, Inc.

# This file is part of the GNU C Library.

# Contributed by Brendan Kehoe (brendan@zen.org).

# The GNU C Library is free software; you can redistribute it and/or

# modify it under the terms of the GNU Lesser General Public

# License as published by the Free Software Foundation; either

# version 2.1 of the License, or (at your option) any later version.

# The GNU C Library is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public

# License along with the GNU C Library.  If not, see

# <http://www.gnu.org/licenses/>.

ifeq ($(subdir),db2)

CPPFLAGS += -DHAVE_SPINLOCKS=1 -DHAVE_ASSEM_ALPHA=1

endif

ifeq ($(subdir),debug)

# Consider making this GCC's default...

CFLAGS-backtrace.c = -fasynchronous-unwind-tables

endif

ifeq ($(subdir),gmon)

sysdep_routines += _mcount

endif

ifeq ($(subdir),gnulib)

sysdep_routines += divl divlu divq divqu reml remlu remq remqu

endif

ifeq ($(subdir),string)

sysdep_routines += stxcpy stxncpy

endif

ifeq ($(subdir),elf)

# The ld.so startup code cannot use literals until it self-relocates.

CFLAGS-rtld.c = -mbuild-constants

endif

ifeq ($(subdir),math)

# The fma routines rely on inexact being raised for correct results.

CFLAGS-s_fma.c = -mieee-with-inexact

CFLAGS-s_fmaf.c = -mieee-with-inexact

# This test tries to check for inexact being raised by arithmetic.

CFLAGS-test-misc.c += -mieee-with-inexact

# Avoid "conflicting types for built-in function" warnings

CFLAGS-s_isnan.c += -fno-builtin-isnanf

endif

# Build everything with full IEEE math support, and with dynamic rounding;

# there are a number of math routines that are defined to work with the

# "current" rounding mode, and it's easiest to set this with all of them.

sysdep-CFLAGS += -mieee -mfp-rounding-mode=d

# libc.so requires about 16k for the small data area, which is well

# below the 64k maximum.

pic-ccflag = -fpic

#  Software floating-point emulation.

ifeq ($(subdir),soft-fp)

sysdep_routines += ots_add ots_sub ots_mul ots_div ots_cmp ots_cmpe	\

	ots_cvtxq ots_cvtqx ots_cvtqux ots_cvttx ots_cvtxt ots_nintxq	\

	fraiseexcpt

endif

ifeq ($(subdir),math)

CPPFLAGS += -I../soft-fp

endif