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			39 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			39 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from build.ab import Rule, emit, Target
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| from types import SimpleNamespace
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| import os
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| import subprocess
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| 
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| emit(
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|     """
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| PKG_CONFIG ?= pkg-config
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| PACKAGES := $(shell $(PKG_CONFIG) --list-all | cut -d' ' -f1 | sort)
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| """
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| )
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| 
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| 
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| @Rule
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| def package(self, name, package=None, fallback: Target = None):
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|     emit("ifeq ($(filter %s, $(PACKAGES)),)" % package)
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|     if fallback:
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|         emit(f"PACKAGE_CFLAGS_{package} :=", fallback.clibrary.cflags)
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|         emit(f"PACKAGE_LDFLAGS_{package} := ", fallback.clibrary.ldflags)
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|         emit(f"PACKAGE_DEP_{package} := ", fallback.name)
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|     else:
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|         emit(f"$(error Required package '{package}' not installed.)")
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|     emit("else")
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|     emit(
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|         f"PACKAGE_CFLAGS_{package} := $(shell $(PKG_CONFIG) --cflags {package})"
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|     )
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|     emit(
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|         f"PACKAGE_LDFLAGS_{package} := $(shell $(PKG_CONFIG) --libs {package})"
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|     )
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|     emit(f"PACKAGE_DEP_{package} := ")
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|     emit("endif")
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| 
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|     self.clibrary = SimpleNamespace()
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|     self.clibrary.cflags = [f"$(PACKAGE_CFLAGS_{package})"]
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|     self.clibrary.ldflags = [f"$(PACKAGE_LDFLAGS_{package})"]
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| 
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|     self.ins = []
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|     self.outs = [f"$(PACKAGE_DEP_{package})"]
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