diff options
Diffstat (limited to 'ACE/include/makeinclude/platform_g++_common.GNU')
| -rw-r--r-- | ACE/include/makeinclude/platform_g++_common.GNU | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/ACE/include/makeinclude/platform_g++_common.GNU b/ACE/include/makeinclude/platform_g++_common.GNU new file mode 100644 index 00000000000..7b4dbba3457 --- /dev/null +++ b/ACE/include/makeinclude/platform_g++_common.GNU @@ -0,0 +1,118 @@ +# -*- 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 $(CXX_FOR_VERSION_TEST) -dumpversion) +ifeq (cmd,$(findstring cmd,$(SHELL))) +CXX_MAJOR_VERSION := $(shell $(CXX_FOR_VERSION_TEST) -dumpversion | sed -e "s/[^0-9\.]//g" | sed -e "s/\..*$$//") +else +CXX_MAJOR_VERSION := $(shell $(CXX_FOR_VERSION_TEST) -dumpversion | sed -e 's/[^0-9\.]//g' | sed -e 's/\..*$$//') +endif +ifeq ($(findstring $(CXX_MAJOR_VERSION),1 2 3),$(CXX_MAJOR_VERSION)) +GXX_4_OR_BETTER := 0 +else +GXX_4_OR_BETTER := 1 +endif + +# 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. 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) + ifneq ($(no_hidden_visibility),1) + CCFLAGS += -fvisibility=hidden -fvisibility-inlines-hidden + else + CPPFLAGS += -DACE_HAS_CUSTOM_EXPORT_MACROS=0 + endif # no_hidden_visibility + endif # GXX_4_OR_BETTER == 1 + else + # Explicitly disable G++ (>= 4.x) visibility attributes since + # they are only meant for use when building shared libraries. + ifeq ($(GXX_4_OR_BETTER), 1) + no_hidden_visibility = 1 + CPPFLAGS += -DACE_HAS_CUSTOM_EXPORT_MACROS=0 + endif # GXX_4_OR_BETTER == 1 + endif # static_libs_only +else + # Explicitly disable G++ (>= 4.x) visibility attributes since + # they are only meant for use when building shared libraries. + ifeq ($(GXX_4_OR_BETTER), 1) + no_hidden_visibility = 1 + CPPFLAGS += -DACE_HAS_CUSTOM_EXPORT_MACROS=0 + endif # GXX_4_OR_BETTER == 1 +endif # shared_libs |