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48 lines
2.2 KiB
Makefile
48 lines
2.2 KiB
Makefile
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# We need to build a 64-bits binary during a 32-bits build. This requires
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# a different compiler and different library paths. Until the build system
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# supports this natively.
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# Some Make magic to avoid CXX and LIB being evaluated when nothing
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# is built in this directory
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lazy = $(if $(___$(1)),,$(eval ___$(1) := $(2)))$(___$(1))
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# We could use the `which` python module, but it needs more code to handle
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# the situation where CXX points to an absolute path. But using the shell
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# which returns a msys path, while we need a windows path. So force msys
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# to do the conversion for us by calling python with an environment variable
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# with the result of the call to `which`. Then munge that path to add the
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# x64 cross-compiler path.
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ifdef MOZ_USING_COMPILER_WRAPPER
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ORIG_CXX := cl
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else
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ORIG_CXX := $(CXX)
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endif
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CXX = $(call lazy,CXX,"$$(subst amd64_x86/x86_amd64/,amd64/,$$(shell CL=`which "$(ORIG_CXX)"` $(PYTHON) -c 'import os; print os.path.dirname(os.environ["CL"])')/x86_amd64/cl.exe)")
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MOZ_WINCONSOLE = 0
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include $(topsrcdir)/config/config.mk
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# Munge the LIB variable to contain paths to the x64 CRT and system libraries.
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# Unconveniently, none of the paths have the same convention, including the
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# compiler path above.
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LIB = $(call lazy,LIB,$$(shell python -c 'import os; print ";".join(s.lower().replace(os.sep, "/").replace("/vc/lib", "/vc/lib/amd64").replace("/um/x86", "/um/x64").replace("/ucrt/x86", "/ucrt/x64") for s in os.environ["LIB"].split(";"))'))
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CXXFLAGS := $(filter-out -arch:IA32,$(CXXFLAGS))
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# OS_COMPILE_CXXFLAGS includes mozilla-config.h, which contains x86-specific
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# defines breaking the build.
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OS_COMPILE_CXXFLAGS :=
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# LNK1246: '/SAFESEH' not compatible with 'x64' target machine
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LDFLAGS := $(filter-out -SAFESEH,$(LDFLAGS))
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# When targetting x64, we need to specify a subsystem of at least 5.02, because
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# the 5.01 value we inherit from the x86 parts is silently ignored, making the
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# linker default to 6.00 (Vista) as of VS2013.
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WIN32_GUI_EXE_LDFLAGS=-SUBSYSTEM:WINDOWS,5.02
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