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Remove duplicate elements from *_SOURCES

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This is useful when you do:

  foo_SOURCES := $(wildcard *.cc) foo.cc

where foo.cc is a generated file.  In this case, if foo.cc already
exists, you get foo.cc twice in foo_SOURCES, leading to a link error.
This commit is contained in:
Eelco Dolstra 2014-01-09 16:54:01 +01:00
parent 55c9a40613
commit 814a73227f
2 changed files with 2 additions and 2 deletions
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2
libraries.mk
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@ -35,7 +35,7 @@ libs_list :=
define build-library =
$(1)_NAME ?= $(1)
_d := $$(strip $$($(1)_DIR))
_srcs := $$(foreach src, $$($(1)_SOURCES), $$(src))
_srcs := $$(sort $$(foreach src, $$($(1)_SOURCES), $$(src)))
$(1)_OBJS := $$(addsuffix .o, $$(basename $$(_srcs)))
_libs := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_PATH))

2
programs.mk
View file

@ -17,7 +17,7 @@ programs_list :=
# installed; defaults to $(bindir).
define build-program =
_d := $$($(1)_DIR)
_srcs := $$(foreach src, $$($(1)_SOURCES), $$(src))
_srcs := $$(sort $$(foreach src, $$($(1)_SOURCES), $$(src)))
$(1)_OBJS := $$(addsuffix .o, $$(basename $$(_srcs)))
_libs := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_PATH))
$(1)_PATH := $$(_d)/$(1)