d277442df5
Fun fact: rules with multiple targets don't work properly with 'make
-j'. For example, a rule like
a b: c
touch a b
is equivalent to
a: c
touch a b
b: c
touch a b
so with 'make -j', the 'touch' command will be run twice. See
e.g. https://stackoverflow.com/questions/2973445/gnu-makefile-rule-generating-a-few-targets-from-a-single-source-file.
38 lines
1.2 KiB
Makefile
38 lines
1.2 KiB
Makefile
libraries += libexpr
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libexpr_NAME = libnixexpr
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libexpr_DIR := $(d)
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libexpr_SOURCES := $(wildcard $(d)/*.cc) $(wildcard $(d)/primops/*.cc) $(d)/lexer-tab.cc $(d)/parser-tab.cc
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libexpr_LIBS = libutil libstore libformat
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libexpr_LDFLAGS =
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ifneq ($(OS), FreeBSD)
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libexpr_LDFLAGS += -ldl
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endif
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# The dependency on libgc must be propagated (i.e. meaning that
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# programs/libraries that use libexpr must explicitly pass -lgc),
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# because inline functions in libexpr's header files call libgc.
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libexpr_LDFLAGS_PROPAGATED = $(BDW_GC_LIBS)
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libexpr_ORDER_AFTER := $(d)/parser-tab.cc $(d)/parser-tab.hh $(d)/lexer-tab.cc $(d)/lexer-tab.hh
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$(d)/parser-tab.hh: $(d)/parser-tab.cc
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$(d)/parser-tab.cc: $(d)/parser.y
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$(trace-gen) bison -v -o $(libexpr_DIR)/parser-tab.cc $< -d
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$(d)/lexer-tab.hh: $(d)/lexer-tab.cc
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$(d)/lexer-tab.cc: $(d)/lexer.l
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$(trace-gen) flex --outfile $(libexpr_DIR)/lexer-tab.cc --header-file=$(libexpr_DIR)/lexer-tab.hh $<
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clean-files += $(d)/parser-tab.cc $(d)/parser-tab.hh $(d)/lexer-tab.cc $(d)/lexer-tab.hh
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dist-files += $(d)/parser-tab.cc $(d)/parser-tab.hh $(d)/lexer-tab.cc $(d)/lexer-tab.hh
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$(eval $(call install-file-in, $(d)/nix-expr.pc, $(prefix)/lib/pkgconfig, 0644))
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