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# -*- Makefile -*-
# $Id$
#
# Common file help turn on/off explicit template instantiation
ifeq ($(CXX),insure)
# insure does not pass through the -dumpversion option.
CXX_FOR_VERSION_TEST ?= g++
else
CXX_FOR_VERSION_TEST ?= $(CXX)
endif
CXX_VERSION := $(shell $(CXX_FOR_VERSION_TEST) -dumpversion)
# If no option has been specified, set templates to automatic
# version of the compiler.
#
templates ?= automatic
# The correct flags to pass to the linker for ELF dynamic shared library
# versioning.
# If the platform file didn't already set versioned_so, default to 1.
versioned_so ?= 1
with_ld ?=
ifeq ($(versioned_so),1)
ifeq ($(with_ld),hpux)
SOFLAGS += -Wl,+h -Wl,$(SONAME)
else
ifeq ($(with_ld),aix)
# What to do here???
else
SOFLAGS += -Wl,-h -Wl,$(SONAME)
endif
endif
endif
static_libs_only ?=
CXX_FULL_VERSION := $(shell $(CXX_FOR_VERSION_TEST) --version)
gcc_template_instantiation_visibility ?= 0
# Only modify LDFLAGS if DLD has been set.
ifneq ($(DLD),)
ifeq ($(DLD),$(CXX_FOR_VERSION_TEST)) # only try this is we are using ld through gcc
LD_FOR_VERSION_TEST = $(shell $(CXX_FOR_VERSION_TEST) -print-prog-name=ld)
else
LD_FOR_VERSION_TEST = $(DLD)
endif # DLD = CXX_FOR_VERSION_TEST
# The -E option is GNU ld specific
ifneq ($(mingw32),1)
GNU_LD := $(shell sh -c '$(LD_FOR_VERSION_TEST) -v 2>&1 | grep -c "GNU ld"')
else
GNU_LD := $(if $(findstring GNU ld,$(shell $(LD_FOR_VERSION_TEST) -v)), 1, 0)
endif # mingw32
endif # DLD
ifeq ($(GNU_LD),1)
STATIC_LINK_FLAG ?= -static
endif # GNU_LD
ifeq ($(no_strict_aliasing), 1)
CCFLAGS += -fno-strict-aliasing
endif
ifeq ($(shared_libs), 1)
ifneq ($(static_libs_only), 1)
# Add all symbols to the dynamic symbol table. Needed to enable
# dynamic_cast<> for shared libraries. (see
# http://gcc.gnu.org/faq.html#dso)
ifeq ($(GNU_LD),1)
# Make sure this version of ld supports the -E option.
ifneq ($(mingw32),1)
LD_EXPORT_DEFINED := $(shell sh -c '$(LD_FOR_VERSION_TEST) -E 2>&1 | egrep -i "(option|flag)" /dev/null; echo $$?')
else
LD_EXPORT_DEFINED := $(shell $(LD_FOR_VERSION_TEST) -E 2>&1 | grep -c -i -e '(option|flag)')
ifeq ($(LD_EXPORT_DEFINED),0)
LD_EXPORT_DEFINED:=1
else
LD_EXPORT_DEFINED:=0
endif
endif # mingw32
ifeq ($(LD_EXPORT_DEFINED),1)
LDFLAGS += -Wl,-E
endif # LD_EXPORT_DEFINED = 1
endif # GNU ld
# Take advantage of G++ (>= 4.x) visibility attributes to generate
# improved shared library binaries.
ifneq ($(no_hidden_visibility),1)
CCFLAGS += -fvisibility=hidden -fvisibility-inlines-hidden
ifeq ($(gcc_template_instantiation_visibility),1)
CCFLAGS += -DACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS=1
endif # gcc_template_instantiation_visibility
else
CPPFLAGS += -DACE_HAS_CUSTOM_EXPORT_MACROS=0
endif # no_hidden_visibility
else
# Explicitly disable G++ (>= 4.x) visibility attributes since
# they are only meant for use when building shared libraries.
no_hidden_visibility = 1
CPPFLAGS += -DACE_HAS_CUSTOM_EXPORT_MACROS=0
endif # static_libs_only
else
# Explicitly disable G++ (>= 4.x) visibility attributes since
# they are only meant for use when building shared libraries.
no_hidden_visibility = 1
CPPFLAGS += -DACE_HAS_CUSTOM_EXPORT_MACROS=0
endif # shared_libs
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