On Oct 17, 2011, at 12:08 PM, IOhannes m zmoelnig wrote:
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On 2011-10-17 17:11, Patrice Colet wrote:
Hello IOhannes,
all I could say is this:
$ make -p -n | grep CXX
make: *** No targets specified and no makefile found. Stop.
LINK.cc = $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
COMPILE.cc = $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
CXX = g++
what do you mean by that?
why does it mean that you have to manually add a "CXX=g++" line to
your
Makefile?
here (on linux), i get approximately the same.
note that there is a line "CXX = g++" is the following output, though
this is set implicitely by make and not explicitely in the makefile.
<snip>
$ make -p -n | grep CXX
ALL_CXXFLAGS := -I"/usr/include/pd" -DPD -DVERSION='"0.0"' -fPIC -Wall
- -W -g -O6 -funroll-loops -fomit-frame-pointer
CXXFLAGS = -Wall -W -g
LINK.cc = $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
OPT_CXXFLAGS = -O6 -funroll-loops -fomit-frame-pointer
COMPILE.cc = $(CXX) $(CXXFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
CXX = g++
$(CXX) $(ALL_CXXFLAGS) -o "$*.o" -c "$*.cpp"
$(CXX) $(ALL_LDFLAGS) -o "$*.$(EXTENSION)" "$*.o" $(ALL_LIBS)
$(SHARED_LIB)
$(CXX) $(ALL_LDFLAGS) -o "$*.$(EXTENSION)" "$*.o" $(ALL_LIBS)
$(SHARED_LIB)
$(CXX) $(ALL_LDFLAGS) -o $(LIBRARY_NAME).$(EXTENSION)
$(SOURCES:.cpp=.o) $(LIBRARY_NAME).o $(ALL_LIBS)
@echo "CXX: $(CXX)"
@echo "CXXFLAGS: $(CXXFLAGS)"
@echo "ALL_CXXFLAGS: $(ALL_CXXFLAGS)"
$(CXX) $(ALL_CXXFLAGS) -o "$*.o" -c "$*.cpp"
</snip>
MinGW does not include a 'cc.exe' only a 'gcc.exe'. CC defaults to
'cc', so for what we are doing, it makes sense to do CC=gcc. It looks
like MinGW's default CXX is g++ and MinGW includes a 'g++.exe' so
there is no need to set CXX in the Makefile.
There another thing very unlikely in template/Makefile, if do a
'make clean', it removes all the sources as well as objects and
binaries
so for not loosing sources I have to remove these lines:
-rm -f -- $(SOURCES:.cpp=.o) $(SOURCES_LIB:.cpp=.o) $
(SHARED_SOURCE:.cpp=.o)
-rm -f -- $(SOURCES:.cpp=.$(EXTENSION))
then you did something weird :-)
i had the same problem after changing CC to CXX and replacing
myobject.c
with myobject.cpp
the template/Makefile is full of assumptions that the sources end with
".c"; to compile .cpp files, you will have to replace all the pattern
substitutions throughout the makefile from %.c to %.cpp
mainly you will find this in constructs like "$(SOURCES:.c=.o)" which
need to be changed to "$(SOURCES:.cpp=.o)"
Yes, that's what's causing everything to get deleted. Basically
".c=.o" means replace a ".c" ending with ".o". If there isn't a ".c"
ending, it just passes the values thru unchanged. Since the
myobject.cpp doesn't end in ".c", it passes thru unchanged, and
therefore 'make clean' is deleting myobject.cpp rather than myobject.o.
.hc
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