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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)
GXX_4_OR_BETTER := $(shell major_version=`echo $(CXX_VERSION) | sed -e 's/\..*$$//'`; if test "$$major_version" -gt 3; then echo 1; else echo 0; fi)
# If no option has been specified, try to enable templates based on the
# version of the compiler.
#
ifndef templates
ifeq ($(GXX_4_OR_BETTER),1)
templates=automatic
else
ifeq (2.95,$(findstring 2.95,$(CXX_VERSION)))
templates = automatic
else
ifeq (3.,$(findstring 3.,$(CXX_VERSION)))
templates = automatic
else
ifeq (2.96,$(findstring 2.96,$(CXX_VERSION)))
templates = automatic
else
ifeq (2.9-gnupro, $(findstring 2.9-gnupro, $(CXX_VERSION)))
templates = automatic
else
ifeq (egcs, $(findstring egcs, $(CXX_VERSION)))
templates = explicit
else
templates = explicit
endif
endif
endif
endif
endif
endif
endif
# Turn on the proper flags for explicit template instantiation.
#
ifeq ($(templates),explicit)
ifeq ($(TEMPLATES_FLAG),) # Turn on flags if none is speficied.
TEMPLATES_FLAG=-fno-implicit-templates
endif
CPPFLAGS += -DACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION
endif
# The correct flags to pass to the linker for ELF dynamic shared library
# versioning. None of this works on OpenBSD's ld.
# If the platform file didn't already set versioned_so, default to 1.
versioned_so ?= 1
with_ld ?=
ifeq ($(versioned_so),1)
ifeq ($(with_ld),hpux)
SOFLAGS += -Wl,+h -Wl,$(SONAME)
else
ifeq ($(with_ld),openbsd)
else
ifeq ($(with_ld),aix)
# What to do here???
else
SOFLAGS += -Wl,-h -Wl,$(SONAME)
endif
endif
endif
endif
static_libs_only ?=
# Only modify LDFLAGS if DLD has been set.
ifneq ($(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 := $(shell $(LD_FOR_VERSION_TEST) -v | grep -c 'GNU ld')
endif # mingw32
endif # DLD
ifeq ($(GNU_LD),1)
STATIC_LINK_FLAG ?= -static
endif # GNU_LD
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 ($(LD_EXPORT_DEFINED),1)
LDFLAGS += -Wl,-E
endif # LD_EXPORT_DEFINED = 1
endif # GNU ld
# Take advantage of G++ (>= 4.x) visibility attributes to generate
# improved shared library binaries.
ifeq ($(GXX_4_OR_BETTER), 1)
CCFLAGS += -fvisibility=hidden -fvisibility-inlines-hidden
endif # GXX_4_OR_BETTER == 1
endif # static_libs_only
endif # shared_libs
|
