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make: support per-object defines

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In the case we have a dir with multiple objects and for
an individual object file we need special define -
allow to define it without adding extra rules.

To ensure dmeventd.o compilation will use EXTRA_FLAGS:
CFLAGS_dmeventd.o += $(EXTRA_FLAGS)

Then it's better to use:
dmeventd.o: CFLAGS += $(EXTRA_FLAGS)
This commit is contained in:
Zdenek Kabelac 2013-12-04 12:35:02 +01:00 committed by Peter Rajnoha
parent 6c6bcc00e4
commit fc37d4fb0d
2 changed files with 2 additions and 1 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.105 -
=====================================
Support per-object compilation cflags via CFLAGS_object.o.
Automatically detect support for compiler/linker options to use RELRO and PIE.
Add --splitsnapshot to lvconvert to separate out cow LV.
Reinstate origin reload to complete lvconvert -s with active LVs. (2.02.98)

2
make.tmpl.in
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@ -345,7 +345,7 @@ endif
$(TARGETS): $(OBJECTS)
%.o: %.c
$(CC) -c $(INCLUDES) $(DEFS) $(WFLAGS) $(CFLAGS) $< -o $@
$(CC) -c $(INCLUDES) $(DEFS) $(WFLAGS) $(CFLAGS) $(CFLAGS_$@) $< -o $@
%.pot: %.c Makefile
$(CC) -E $(INCLUDES) -include $(top_srcdir)/include/pogen.h \