## Common automake fragments for elfutils subdirectory makefiles.

##

## Copyright (C) 2010, 2014, 2016 Red Hat, Inc.

##

## This file is part of elfutils.

##

## This file is free software; you can redistribute it and/or modify

## it under the terms of either

##

##   * the GNU Lesser General Public License as published by the Free

##     Software Foundation; either version 3 of the License, or (at

##     your option) any later version

##

## or

##

##   * the GNU General Public License as published by the Free

##     Software Foundation; either version 2 of the License, or (at

##     your option) any later version

##

## or both in parallel, as here.

##

## elfutils 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

## General Public License for more details.

##

## You should have received copies of the GNU General Public License and

## the GNU Lesser General Public License along with this program.  If

## not, see <http://www.gnu.org/licenses/>.

##

DEFS = -D_GNU_SOURCE -DHAVE_CONFIG_H -DLOCALEDIR='"${localedir}"'

AM_CPPFLAGS = -I. -I$(srcdir) -I$(top_srcdir)/lib -I..

# Drop the 'u' flag that automake adds by default. It is incompatible

# with deterministic archives.

ARFLAGS = cr

# Warn about stack usage of more than 256K = 262144 bytes.

if ADD_STACK_USAGE_WARNING

STACK_USAGE_WARNING=-Wstack-usage=262144

else

STACK_USAGE_WARNING=

endif

if SANE_LOGICAL_OP_WARNING

LOGICAL_OP_WARNING=-Wlogical-op

else

LOGICAL_OP_WARNING=

endif

if HAVE_DUPLICATED_COND_WARNING

DUPLICATED_COND_WARNING=-Wduplicated-cond

else

DUPLICATED_COND_WARNING=

endif

if HAVE_NULL_DEREFERENCE_WARNING

NULL_DEREFERENCE_WARNING=-Wnull-dereference

else

NULL_DEREFERENCE_WARNING=

endif

if HAVE_IMPLICIT_FALLTHROUGH_WARNING

# Use strict fallthrough. Only __attribute__((fallthrough)) will prevent the

# warning

IMPLICIT_FALLTHROUGH_WARNING=-Wimplicit-fallthrough=5

else

IMPLICIT_FALLTHROUGH_WARNING=

endif

AM_CFLAGS = -std=gnu99 -Wall -Wshadow -Wformat=2 \

	    -Wold-style-definition -Wstrict-prototypes -Wtrampolines \

	    $(LOGICAL_OP_WARNING) $(DUPLICATED_COND_WARNING) \

	    $(NULL_DEREFERENCE_WARNING) $(IMPLICIT_FALLTHROUGH_WARNING) \

	    $(if $($(*F)_no_Werror),,-Werror) \

	    $(if $($(*F)_no_Wunused),,-Wunused -Wextra) \

	    $(if $($(*F)_no_Wstack_usage),,$(STACK_USAGE_WARNING)) \

	    $(if $($(*F)_no_Wpacked_not_aligned),-Wno-packed-not-aligned,) \

	    $($(*F)_CFLAGS)

AM_CXXFLAGS = -std=c++11 -Wall -Wshadow \

	   -Wtrampolines \

	   $(LOGICAL_OP_WARNING) $(DUPLICATED_COND_WARNING) \

	   $(NULL_DEREFERENCE_WARNING) $(IMPLICIT_FALLTHROUGH_WARNING) \

	   $(if $($(*F)_no_Werror),,-Werror) \

	   $(if $($(*F)_no_Wunused),,-Wunused -Wextra) \

	   $(if $($(*F)_no_Wstack_usage),,$(STACK_USAGE_WARNING)) \

	   $(if $($(*F)_no_Wpacked_not_aligned),-Wno-packed-not-aligned,) \

	   $($(*F)_CXXFLAGS)

COMPILE.os = $(filter-out -fprofile-arcs -ftest-coverage, $(COMPILE))

DEFS.os = -DPIC -DSHARED

if SYMBOL_VERSIONING

DEFS.os += -DSYMBOL_VERSIONING

else

endif

%.os: %.c %.o

if AMDEP

	$(AM_V_CC)if $(COMPILE.os) -c -o $@ $(fpic_CFLAGS) $(DEFS.os) -MT $@ -MD -MP \

	  -MF "$(DEPDIR)/$*.Tpo" `test -f '$<' || echo '$(srcdir)/'`$<; \

	then cat "$(DEPDIR)/$*.Tpo" >> "$(DEPDIR)/$*.Po"; \

	     rm -f "$(DEPDIR)/$*.Tpo"; \

	else rm -f "$(DEPDIR)/$*.Tpo"; exit 1; \

	fi

else

	$(AM_V_CC)$(COMPILE.os) -c -o $@ $(fpic_CFLAGS) $(DEFS.os) $<

endif

CLEANFILES = *.gcno *.gcda

textrel_msg = echo "WARNING: TEXTREL found in '$@'"

if FATAL_TEXTREL

textrel_found = $(textrel_msg); exit 1

else

textrel_found = $(textrel_msg)

endif

textrel_check = if $(READELF) -d $@ | fgrep -q TEXTREL; then $(textrel_found); fi

print-%:

	@echo $*=$($*)