Makefile/linker question

[ceruleus]

I have been googling around and either my google foo is weak today or there isn't a clear cut answer to my question out there.

I've got a few libraries that I link with when compiling my code and it looks something like this:

XLIBS		+= `pkg-config glibmm-2.4 --libs`

INCLUDES	+= -I../../Interfaces/myinterfaces
INCLUDES	+= -I../../Components/mylib
INCLUDES	+= -I../../Components/myotherlib
INCLUDES	+= -I../../Components/vpxlib

VPATH		+= ../../../../builds/latest/$(CFG)/libs

LIBS		+= -lmylib
LIBS		+= -lmyotherlib
LIBS		+= -lboost_thread
LIBS		+= -lboost_system
LIBS		+= -lvpx
LIBS		+= -lrt

FILES 		+= Globals.cpp
FILES 		+= MNDNetworkSettingsDlg.cpp
FILES 		+= MTDNetworkDevice.cpp

OBJECTS		= $(patsubst %.cpp,$(CFG)/%.o,$(FILES))

OUTDIR		= ../../../../builds/latest/$(CFG)/
TARGET		= $(OUTDIR)/dev_networkdevice.so

CTARGETS	+= $(DIRRES)/dev_networkdevice.mrf

.PHONY: clean all banner

all: depends target

clean:
	@-rm -f *.gch $(CFG)/* $(TARGET) $(CTARGETS)

target: banner $(TARGET) $(CTARGETS)

$(TARGET): $(OBJECTS) $(LIBS)
	@mkdir -p $(OUTDIR)
	$(CXX) -shared -fPIC -g -Wl,--version-script=networkdevice.ver,-z,defs -o $@ -pthread $^ $(XLIBS) */

(Sorry for the weird c++ style comment error there...)

I've omitted a few minor details, let me know if I need to explain anything or give more sample code.


Anyway, my question is this: When I link with $(LIBS), the linker (or GNU Make or something...) translates -lmylib and -lmyotherlib to /pathtolib/libmylib.a and /pathtolib/libmyotherlib.a which is good, these are static libraries that I want to link with. There is no libmylib.so or libmyotherlib.so file in that directory (or anywhere else). Now I want to link with libboost_system.a, libboost_thread.a, libvpx.a and librt.a, but the folders where those libraries are located contain both libboost_system.a and libboost_system.so (same with the other libraries) and for some reason specifying -lboost_system always picks the .so file over the .a file.

I want -lboost_system to pick the .a file instead of the .so file without having to specify /usr/lib/libboost_system.a. Is that possible??

Please let me know if I'm being unclear or if you have any questions.

Any ideas, thoughts or input is welcome!

Thank you.

[Cubbi]

Try this option:

  -static
           Do not link against shared libraries.  [...]
           You  may  use  this  option  multiple times on the command line: it
           affects library searching for -l options  which  follow  it.

[ceruleus]

Thanks for the suggestion Cubbi. I've tried that, and I've also tried specifying the -Bstatic option for the linker.

The problem I'm seeing is that somewhere between lines 15 and 39 of the code I provided -lboost_thread (for example) gets translated to /usr/lib/libboost_thread.so. Clearly I don't know much about Makefiles and I've been googling around all day trying to figure out how that happens.

TL;DR Something translates -lboost_thread to /usr/lib/libboost_thread.so, I want whatever that thing is to translate it to /usr/lib/libboost_thread.a. Is there an elegant way to do that??

[ceruleus]

BBBBBBUUUuuuuuUUUuUuUuuMMMMmmMmmPPPPpppPp

[ne555]

$ make --just-print