CODEWITHSUNDEEP
c++gcclinker-errors
user2150989
user2150989

Reputation: 233

Unable to link duma library

I am trying to use DUMA (http://duma.sourceforge.net/) but cannot seem to properly link it into my code. Here is my makefile:

CXX := /home/projects/gcc/482/bin/c++

CXXFLAGS := -std=c++11 -pedantic -Wall -I/home/duma_2_5_15/
LDFLAGS := -L/home/duma_2_5_15/ -lduma

#CXX_DEPEND := -MMD -MF .d.$(subst .cc,,$*) -MP -MT $@
CXX_DEPEND :=

define compile-c++-and-emit-deps
$(CXX) $(CXXFLAGS) $(CXX_DEPEND) -c $< -o $@
endef

%.o : %.cc
    $(compile-c++-and-emit-deps)

srcs := $(wildcard *.cc)
objs := $(srcs:.cc=.o)
deps := $srcs:%.cc=.d.%)

default: test

test: $(objs)
    $(CXX) $(LDFLAGS) -o $@ $(objs)

#-include $(deps)

when I run "make", I receive the following errors:

> make
/home/projects/gcc/482/bin/c++ -L/home/duma_2_5_15/ -lduma -o test main.o
main.o: In function `main':
main.cc:(.text+0x193c): undefined reference to `_duma_malloc'
main.cc:(.text+0x19f8): undefined reference to `_duma_free'
collect2: error: ld returned 1 exit status
make: *** [test] Error 1

Am I not linking duma properly? My main.cc file does include the following header:

#include "duma.h"

I did read the following note on the DUMA homepage:

Some systems will require special arguments to the linker to assure that you are using the DUMA malloc() and not the one from your C library.

However I'm not sure how to proceed from here. This is running on Linux 2.6.18-308.el5.

Thanks

Upvotes: 0

Views: 679

Answers (1)

user2150989
user2150989

Reputation: 233

Here is the solution to my own question. Note the "-lduma" addition on the second to last line of code at the bottom. This was all I had to add to make it link properly.

CXX := /home/projects/gcc/482/bin/c++

CXXFLAGS := -std=c++11 -pedantic -Wall -I/home/duma_2_5_15/
LDFLAGS := -L/home/duma_2_5_15/ -lduma

#CXX_DEPEND := -MMD -MF .d.$(subst .cc,,$*) -MP -MT $@
CXX_DEPEND :=

define compile-c++-and-emit-deps
$(CXX) $(CXXFLAGS) $(CXX_DEPEND) -c $< -o $@
endef

%.o : %.cc
    $(compile-c++-and-emit-deps)

srcs := $(wildcard *.cc)
objs := $(srcs:.cc=.o)
deps := $srcs:%.cc=.d.%)

default: test

test: $(objs)
    $(CXX) $(LDFLAGS) -o $@ $(objs) -lduma

#-include $(deps)

Upvotes: 1

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