Writing makefile to compile several binaries - build

I am trying to write a Makefile to compile 87 files with the following names:
file1.c, file2.c file3.c .... file87.c
I am trying to compile them into separate binaries with names:
file1, file2, file3 .... file87
In the Makefile I need to define following variables for each and every one of them. This is what I had originally.
FILE1 = file1
$(FILE1)_SRC := \
mydir/file1.c \
mydir/another.c
$(FILE1)_CFLAGS := `pkg-config --cflags glib-2.0`
$(FILE1)_LDFLAGS := -L. `pkg-config --libs glib-2.0`
FILE2 = file2
$(FILE2)_SRC := \
mydir/file2.c \
mydir/another.c
$(FILE2)_CFLAGS := `pkg-config --cflags glib-2.0`
$(FILE2)_LDFLAGS := -L. `pkg-config --libs glib-2.0`
Also at the end of the Makefile I need to store the names of the binaries
binaries = $(FILE1) $(FILE2) ...... $(FILE87)
I explored loops and define directive in make but I cannot understand how can I do this neatly in a non-cumbersome manner. Please note the CFLAGS and LDFLAGS are same for all of them.
Any inputs or alternative approaches to writing the Makefile are very welcome.
I wrote this based on seldon's answer below, but this gives an error:
SRCS = $(wildcard mydir/*.c)
TGTS = $(SRCS:%.c=%)
CFLAGS = $$(pkg-config --cflags glib-2.0)
LDFLAGS = -L.
LDLIBS = $$(pkg-config --libs glib-2.0)
all: $(TGTS)
#echo $(SRCS)
#echo $(TGTS)
$(TGTS) : % : %.o another.o
#clean:
# rm -f $(TGTS) *.o
#.PHONY: all clean
$ make
cc $(pkg-config --cflags glib-2.0) -c -o mydir/another.o mydir/another.c
make: *** No rule to make target `another.o', needed by `mydir/another'. Stop.
Source:
another.c
# include <stdio.h>
# include <stdlib.h>
void print_string(const char * file_name, int lineno, const char * func_name) {
printf("%s %d %s\n", file_name, lineno, func_name);
}
file01.c
int main() {
print_string(__FILE__, __LINE__, __func__);
}
Any help appreciated.

If the variables are the same for all programs, you could use a static pattern rule like this:
SRCS = $(wildcard file*.c)
TGTS = $(SRCS:%.c=%)
CFLAGS = $$(pkg-config --cflags glib-2.0)
LDFLAGS = -L.
LDLIBS = $$(pkg-config --libs glib-2.0)
all: $(TGTS)
$(TGTS) : % : %.o another.o
clean:
rm -f $(TGTS) *.o
.PHONY: all clean

Related

Dev-C++ 5.11 with MinGW have linking problem

I did try to compile a OpenCV-Project with MinGW (under Windows 10). The OpenCV-library had compiled without problem and I try to do couple of test.
main3.cpp
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgcodecs/imgcodecs.hpp"
#include <iostream>
using namespace cv;
using namespace std;
int main(int argc, char** argv)
{
Mat im = imread(argc == 2 ? argv[1] : "lena.jpg", 1);
if (im.empty())
{
cout << "Cannot open image!" << endl;
return -1;
}
imshow("image", im);
waitKey(0);
return 0;
}
I have follows Makefile:
# Project: Proj400-v3
# Makefile created by Dev-C++ 5.11
CPP = g++.exe
CC = gcc.exe
WINDRES = windres.exe
OBJ = obj/main3.o
LINKOBJ = obj/main3.o
LIBS = -L"C:/RD/TMP/Dev-Cpp/MinGW64/lib32" -L"C:/RD/TMP/Work/entw/OCV-SVD/ocv4.0.0/lib" -lopencv_core400 -lopencv_imgcodecs400 -lopencv_highgui400 -m32
INCS = -I"C:/RD/TMP/Dev-Cpp/MinGW64/include" -I"C:/RD/TMP/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include" -I"C:/RD/TMP/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include" -I"C:/RD/TMP/Work/entw/OCV-SVD/ocv4.0.0/inc" -I"C:/RD/TMP/Work/entw/OCV-SVD/proj4.0.0.0"
CXXINCS = -I"C:/RD/TMP/Work/entw/OCV-SVD/ocv4.0.0/inc" -I"C:/RD/TMP/Work/entw/OCV-SVD/proj4.0.0.0"
BIN = obj/Proj400-v3.exe
CXXFLAGS = $(CXXINCS) -m32 -std=c++11 -lopencv_core400 -lopencv_imgcodecs400 -lopencv_highgui400
CFLAGS = $(INCS) -m32
RM = rm.exe -f
.PHONY: all all-before all-after clean clean-custom
all: all-before $(BIN) all-after
clean: clean-custom
${RM} $(OBJ) $(BIN)
$(BIN): $(OBJ)
$(CPP) $(LINKOBJ) -o $(BIN) $(LIBS)
obj/main3.o: main3.cpp
$(CPP) -c main3.cpp -o obj/main3.o $(CXXFLAGS)
All compiled and linked without mistakes nad run fine. I try to expand the test with new file 'second3.cpp'.
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc.hpp>
#include <opencv2/imgproc/imgproc_c.h>
extern "C" {
}
New the Makefile:
# Project: Proj400-v3
# Makefile created by Dev-C++ 5.11
CPP = g++.exe
CC = gcc.exe
WINDRES = windres.exe
OBJ = obj/main3.o obj/second3.o
LINKOBJ = obj/main3.o obj/second3.o
LIBS = -L"C:/RD/TMP/Dev-Cpp/MinGW64/lib32" -L"C:/RD/TMP/Work/entw/OCV-SVD/ocv4.0.0/lib" -lopencv_core400 -lopencv_imgcodecs400 -lopencv_highgui400 -m32
INCS = -I"C:/RD/TMP/Dev-Cpp/MinGW64/include" -I"C:/RD/TMP/Dev-Cpp/MinGW64/x86_64-w64-mingw32/include" -I"C:/RD/TMP/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include" -I"C:/RD/TMP/Work/entw/OCV-SVD/ocv4.0.0/inc" -I"C:/RD/TMP/Work/entw/OCV-SVD/proj4.0.0.0"
CXXINCS = -I"C:/RD/TMP/Work/entw/OCV-SVD/ocv4.0.0/inc" -I"C:/RD/TMP/Work/entw/OCV-SVD/proj4.0.0.0"
BIN = obj/Proj400-v3.exe
CXXFLAGS = $(CXXINCS) -m32 -std=c++11 -lopencv_core400 -lopencv_imgcodecs400 -lopencv_highgui400
CFLAGS = $(INCS) -m32
RM = rm.exe -f
.PHONY: all all-before all-after clean clean-custom
all: all-before $(BIN) all-after
clean: clean-custom
${RM} $(OBJ) $(BIN)
$(BIN): $(OBJ)
$(CPP) $(LINKOBJ) -o $(BIN) $(LIBS)
obj/main3.o: main3.cpp
$(CPP) -c main3.cpp -o obj/main3.o $(CXXFLAGS)
obj/second3.o: second3.cpp
$(CPP) -c second3.cpp -o obj/second3.o $(CXXFLAGS)
After compiling I have follows list of mistakes:
- Command: mingw32-make.exe -f "C:\RD\TMP\Work\entw\OCV-SVD\proj4.0.0.0\Makefile.win" all
g++.exe obj/main3.o obj/second3.o -o obj/Proj400-v3.exe -L"C:/RD/TMP/Dev-Cpp/MinGW64/lib32" -L"C:/RD/TMP/Work/entw/OCV-SVD/ocv4.0.0/lib" -lopencv_core400 -lopencv_imgcodecs400 -lopencv_highgui400 -m32
obj/main3.o:main3.cpp:(.text+0xc3): undefined reference to `cv::imread(std::string const&, int)'
obj/main3.o:main3.cpp:(.text+0x181): undefined reference to `cv::imshow(std::string const&, cv::_InputArray const&)'
collect2.exe: error: ld returned 1 exit status
C:\RD\TMP\Work\entw\OCV-SVD\proj4.0.0.0\Makefile.win:25: recipe for target 'obj/Proj400-v3.exe' failed
mingw32-make.exe: *** [obj/Proj400-v3.exe] Error 1
Can some body explane me, what is wrong? Why with one source in the project it work fine und with many files in the project I have 'undefined reference'?
PS: If I change the project from two source-files to one-source, but do not remove the obj/second3.o, I have again problem with 'undefined reference'.

Why is the makefile returning g++: error: h file or directory make: *** [Makefile:12: test] Error 1?

I want to compile this program test.cpp
#include <iostream>
#include <cstring>
#include <iomanip>
#include <sodium.h>
#include <gmpxx.h>
#include <sstream>
using namespace std;
//Encryt or decrypt with RSA
mpz_class RSA(mpz_class m, mpz_class e,mpz_class N)
{
mpz_class rop;
mpz_powm(rop.get_mpz_t(), m.get_mpz_t(), e.get_mpz_t(), N.get_mpz_t());
return rop;
}
int main(const int argc, const char *const argv[])
{
if (argc!=4){
printf("usage: %s [Message] [Exponent] [Modulus] \n", argv[0]);
return 1;
}
const mpz_class m(argv[1]), d(argv[2]),N(argv[3]);
cout<<endl<<RSA(m,d,N);
return 0;
}
with this makefile Makefile
CXX = g++
CXXFLAGS = -c -Wall -Wextra -Werror
LDFLAGS = -lgmp -lsodium -lssl -lcrypto -lgmpxx
SRC = $(wildcard *.cpp )
HDR = $(wildcard *.h )
OBJ = $(SRC :.cpp =.o )
all : Release
Debug : CXXFLAGS +=-g
Debug : test
Release : test
test : $(OBJ)
$(CXX) -o $# $ˆ $(LDFLAGS)
%.o : %.cpp $(HDR)
$(CXX) $(CXXFLAGS) $< -o $#
clean :
rm -f $(OBJ) test
But I receive
-------------- Build: Debug in KA-RMP (compiler: GNU GCC Compiler)---------------
Checking if target is up-to-date: make -q -f Makefile Debug
Running command: make -f Makefile Debug
g++: error: h file or directory
make: *** [Makefile:12: test] Error 1
g++ -o test lsodium -lssl -lcrypto -lgmpxx
Process terminated with status 2 (0 minute(s), 0 second(s))
2 error(s), 0 warning(s) (0 minute(s), 0 second(s))
Do you have any idea why I receive the error?
The problem is that $^ and $# is not working as you expected.
$# and $^ return the left and right values of $OBJ. However $OBJ simply resolves to "test.o".
OBJ = $(SRC:.cpp=.o) # converts test.cpp to test.o
Therefore $^ will return nothing because there is nothing on the right side.
If you want to use $^ you have to set OBJ to "test.o test.cpp". I made the changes with your makefile.
Otherwise use $(CXX) -o $# $(SRC) $(LDFLAGS).
CXX = g++
CXXFLAGS = -c -Wall -Wextra -Werror
LDFLAGS = -lgmp -lsodium -lssl -lcrypto -lgmpxx
SRC = $(wildcard *.cpp )
HDR = $(wildcard *.h )
OBJ = $(SRC) $(SRC :.cpp =.o )
all : Release
Debug : CXXFLAGS +=-g
Debug : test
Release : test
test : $(OBJ)
$(CXX) -o $# $^ $(LDFLAGS)
%.o : %.cpp $(HDR)
$(CXX) $(CXXFLAGS) $< -o $#
clean :
rm -f $(OBJ) test

avr32-gcc: Global variable not initialized with function output

I try to initialize a global variable with the output of a function. It works as expected for gnu-gcc, but when compiled with avr32-gcc, the variable is initialized with 0. I want the variable to be initialized by a function since in the real scenario it is a reference (MyClass& myclass = MyClass::getInstance().
Here is the code:
extern "C"
{
#include "led.h"
}
int getInteger()
{
return 10;
}
int my_int = getInteger();
int main (void)
{
LED_On(LED2);
//my_int = getInteger(); //* This line really sets my_int = 10;
if(my_int == 10)
{
LED_On(LED1);
}
while(1){
__asm__ ("nop");
}
return 0;
}
and here is my Makefile:
PROJ_NAME=TEST
# Include paths for project folder
SRCS_INC += -I. -I./preprocessor
# Sources files for project folder (*.c and *.cpp)
SRCS += main.cpp exception_noNMI.S startup_uc3.S trampoline_uc3.S intc.c led.c
AS = avr32-gcc
ASFLAGS = -x assembler-with-cpp -c -mpart=uc3c1512c -mrelax
ASFLAGS += ${SRCS_INC}
CC = avr32-gcc
CFLAGS += -mpart=uc3c1512c
CFLAGS += ${SRCS_INC}
CXX = avr32-g++
LINKER = avr32-g++
OBJCOPY = avr32-objcopy
LDFLAGS = -nostartfiles -mpart=uc3c1512c
LDFLAGS += ${SRCS_INC}
OBJS += $(addsuffix .o, $(basename $(SRCS)))
# Main rule
all: $(PROJ_NAME).elf
# Linking
${PROJ_NAME}.elf: ${OBJS}
#echo Linking...
#$(CXX) $(LDFLAGS) $^ -o $#
#$(OBJCOPY) -O ihex ${OBJCOPYFLAGS} $(PROJ_NAME).elf $(PROJ_NAME).hex
#$(OBJCOPY) -O binary $(PROJ_NAME).elf $(PROJ_NAME).bin
# Assembly files in source folder
%.o: ./%.S
#mkdir -p $(dir $#)
#$(AS) $(ASFLAGS) -c $< -o $#
# C files in source folder
%.o: ./%.c
#mkdir -p $(dir $#)
#$(CC) -c $< -o $# $(CFLAGS)
# CPP files in SRC folder
%.o: ./%.cpp
#mkdir -p $(dir $#)
#$(CXX) -c $< -o $# $(CFLAGS)
.PHONY: clean
clean:
#rm -f $(OBJS) $(PROJ_NAME).elf $(PROJ_NAME).hex $(PROJ_NAME).bin
I also tried to make an init function with __attribute(constructor) as explained in this answer.
Still it is not excuted.
As far as I can see, you're not having optimization enabled. Thus, the compiler may actually make a call to getInteger during startup. Now, you're replacing the default startup with something that you do not show. Maybe you just need to make sure that this is done during startup? Also, you could try to enable optimization and see if the call is resolved.

How to add directive in make file in c++

Is this the correct way of defining GLES_VERSION ?? I m getting #error in my program
c++ code
#if GLES_VERSION == 2
#include <GLES2/gl2.h>
#elif GLES_VERSION == 3
#include <GLES3/gl3.h>
#else
#error "GLES_VERSION must be defined as either 2 or 3"
#endif
i m ending up here in #error
make file code
CXXFLAGS = -O2 -g -Wall -fmessage-length=0
OBJS = hello.o
LIBS = -lX11 -lXau -lEGL -lGLESv2 -lm
GLES_VERSION = -D2 #is this correct ?
TARGET = hello \
$(TARGET): $(OBJS)
$(CXX) -o $(TARGET) $(GLES_VERSION) $(OBJS) $(LIBS)
all: $(TARGET)
clean:
rm -f $(OBJS) $(TARGET)
It should be
GLES_VERSION = -DGLES_VERSION=2
it must be,
GLES_VERSION = -DGLES_VERSION=2

C++ Ruby Extension with External Libraries

I started a little experiment today: I wrote a C++ class which depends on some other libraries (ALGLIB, Eigen, internal tools) and I wanted to create a Ruby wrapper for that class. I'm currently using Rice to do that. First I wrote a very simple C++ wrapper for my class:
// #file MLPWrapper.h
#pragma once
#include "mlp/MLP.h"
#include <ruby.h>
class MLPWrapper
{
MLP mlp; // <- my C++ class
public:
...
void fit()
{
...
mlp.fit(stop);
}
};
The library's cpp-file is this:
// #file cmlp.cpp
#include "rice/Data_Type.hpp"
#include "rice/Constructor.hpp"
#include "MLPWrapper.h"
using namespace Rice;
extern "C"
void Init_cmlp()
{
Data_Type<MLPWrapper> rb_cMLPWrapper = define_class<MLPWrapper>("MLP")
.define_constructor(Constructor<MLPWrapper>())
...
.define_method("fit", &MLPWrapper::fit);
}
And this is the extconf.rb:
require "mkmf-rice"
$CFLAGS << "-O3"
HEADER_DIRS = [
"..",
"../../external/libraries/eigen-eigen-3.0.1",
"../../external/libraries/alglib/cpp/src",
"../../external/libraries/CMA-ESpp"
]
LIB_DIRS = [
"../../build/external/libraries/alglib/cpp/src",
"../../build/external/libraries/CMA-ESpp/cma-es",
"../../build/src/tools"
]
dir_config("libs", HEADER_DIRS, LIB_DIRS)
have_library("libtools")
have_library("libalglib")
create_makefile("cmlp")
Everything works fine except linking. Obviously the header files of the libraries are included, otherwise it would not compile. But when I run a little test program ("require "cmlp"; mlp = MLP.new") in Ruby it does not find the symbol _ZN6LoggerC1ENS_6TargetESs, which is part of libtools (an enum). This is what happens when I build the C++ extension and execute the test program:
$ ruby extconf.rb
checking for main() in -lrice... yes
checking for main() in -llibtools... no
checking for main() in -llibalglib... no
checking for main() in -llibcmaes... no
creating Makefile
$ make
g++ -I. -I. -I/usr/lib/ruby/1.8/x86_64-linux -I. -I.. -I../../external/libraries/eigen-eigen-3.0.1 -I../../external/libraries/alglib/cpp/src -I../../external/libraries/CMA-ESpp -I/var/lib/gems/1.8/gems/rice-1.4.3/ruby/lib/include -fPIC -fno-strict-aliasing -g -g -O2 -fPIC -O3 -Wall -g -c cmlp.cpp
g++ -shared -o cmlp.so cmlp.o -L. -L/usr/lib -L../../build/external/libraries/alglib/cpp/src -L../../build/external/libraries/CMA-ESpp/cma-es -L../../build/src/tools -L. -Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic -L/var/lib/gems/1.8/gems/rice-1.4.3/ruby/lib/lib -lrice -lruby1.8 -lpthread -lrt -ldl -lcrypt -lm -lc
$ ruby test.rb
ruby: symbol lookup error: ./cmlp.so: undefined symbol: _ZN6LoggerC1ENS_6TargetESs
The libraries are all compiled with CMake (add_library(...)) and are located at
../../build/src/tools/libtools.so
../../build/external/libraries/alglib/cpp/src/libalglib.so
../../build/external/libraries/CMA-ESpp/cma-es/libcmaes.so
I don't know how to solve this problem on my own and I could not find any helpful documentation for my problem. How do i fix this extconf.rb? I appreciate every hint.
edit: OK, I changed the extconf.rb:
require "rubygems"
require "mkmf-rice"
BASE_DIR = "/bla/"
$CFLAGS << " -O3"
dir_config("tools", [BASE_DIR + "src", BASE_DIR + "external/libraries/eigen-eigen-3.0.1"], BASE_DIR + "build/src/tools")
unless have_library("tools")
abort "tools are missing. please compile tools"
end
dir_config("alglib", BASE_DIR + "external/libraries/alglib/cpp/src", BASE_DIR + "build/external/libraries/alglib/cpp/src")
unless have_library("alglib")
abort "alglib is missing. please compile alglib"
end
dir_config("cmaes", BASE_DIR + "external/libraries/CMA-ESpp", BASE_DIR + "build/external/libraries/CMA-ESpp/cma-es")
unless have_library("cmaes")
abort "cmaes is missing. please compile cmaes"
end
create_makefile("cmlp")
The generated Makefile is:
SHELL = /bin/sh
#### Start of system configuration section. ####
srcdir = .
topdir = /usr/lib/ruby/1.8/x86_64-linux
hdrdir = $(topdir)
VPATH = $(srcdir):$(topdir):$(hdrdir)
exec_prefix = $(prefix)
prefix = $(DESTDIR)/usr
sharedstatedir = $(prefix)/com
mandir = $(prefix)/share/man
psdir = $(docdir)
oldincludedir = $(DESTDIR)/usr/include
localedir = $(datarootdir)/locale
bindir = $(exec_prefix)/bin
libexecdir = $(prefix)/lib/ruby1.8
sitedir = $(DESTDIR)/usr/local/lib/site_ruby
htmldir = $(docdir)
vendorarchdir = $(vendorlibdir)/$(sitearch)
includedir = $(prefix)/include
infodir = $(prefix)/share/info
vendorlibdir = $(vendordir)/$(ruby_version)
sysconfdir = $(DESTDIR)/etc
libdir = $(exec_prefix)/lib
sbindir = $(exec_prefix)/sbin
rubylibdir = $(libdir)/ruby/$(ruby_version)
docdir = $(datarootdir)/doc/$(PACKAGE)
dvidir = $(docdir)
vendordir = $(libdir)/ruby/vendor_ruby
datarootdir = $(prefix)/share
pdfdir = $(docdir)
archdir = $(rubylibdir)/$(arch)
sitearchdir = $(sitelibdir)/$(sitearch)
datadir = $(datarootdir)
localstatedir = $(DESTDIR)/var
sitelibdir = $(sitedir)/$(ruby_version)
CC = gcc
LIBRUBY = $(LIBRUBY_SO)
LIBRUBY_A = lib$(RUBY_SO_NAME)-static.a
LIBRUBYARG_SHARED = -l$(RUBY_SO_NAME)
LIBRUBYARG_STATIC = -lruby1.8-static
RUBY_EXTCONF_H =
CFLAGS = -fPIC -fno-strict-aliasing -g -g -O2 -fPIC $(cflags) -O3
INCFLAGS = -I. -I. -I/usr/lib/ruby/1.8/x86_64-linux -I.
DEFS =
CPPFLAGS = -I/bla/external/libraries/CMA-ESpp -I/bla//external/libraries/alglib/cpp/src -I//bla/src -I/bla/external/libraries/eigen-eigen-3.0.1 -I/var/lib/gems/1.8/gems/rice-1.4.3/ruby/lib/include
CXXFLAGS = $(CFLAGS) -Wall -g
ldflags = -L. -Wl,-Bsymbolic-functions -rdynamic -Wl,-export-dynamic -L/var/lib/gems/1.8/gems/rice-1.4.3/ruby/lib/lib
dldflags =
archflag =
DLDFLAGS = $(ldflags) $(dldflags) $(archflag)
LDSHARED = g++ -shared
AR = ar
EXEEXT =
RUBY_INSTALL_NAME = ruby1.8
RUBY_SO_NAME = ruby1.8
arch = x86_64-linux
sitearch = x86_64-linux
ruby_version = 1.8
ruby = /usr/bin/ruby1.8
RUBY = $(ruby)
RM = rm -f
MAKEDIRS = mkdir -p
INSTALL = /usr/bin/install -c
INSTALL_PROG = $(INSTALL) -m 0755
INSTALL_DATA = $(INSTALL) -m 644
COPY = cp
#### End of system configuration section. ####
preload =
CXX = g++
libpath = . $(libdir) /bla/external/libraries/CMA-ESpp/cma-es /bla/build/external/libraries/alglib/cpp/src /bla/build/src/tools
LIBPATH = -L. -L$(libdir) -L/bla/build/external/libraries/CMA-ESpp/cma-es -L/bla/build/external/libraries/alglib/cpp/src -L/bla/build/src/tools
DEFFILE =
CLEANFILES = mkmf.log
DISTCLEANFILES =
extout =
extout_prefix =
target_prefix =
LOCAL_LIBS =
LIBS = -lcmaes -lalglib -ltools -lrice -lruby1.8 -lpthread -lrt -ldl -lcrypt -lm -lc
SRCS = cmlp.cpp
OBJS = cmlp.o
TARGET = cmlp
DLLIB = $(TARGET).so
EXTSTATIC =
STATIC_LIB =
BINDIR = $(bindir)
RUBYCOMMONDIR = $(sitedir)$(target_prefix)
RUBYLIBDIR = $(sitelibdir)$(target_prefix)
RUBYARCHDIR = $(sitearchdir)$(target_prefix)
TARGET_SO = $(DLLIB)
CLEANLIBS = $(TARGET).so $(TARGET).il? $(TARGET).tds $(TARGET).map
CLEANOBJS = *.o *.a *.s[ol] *.pdb *.exp *.bak
all: $(DLLIB)
static: $(STATIC_LIB)
clean:
#-$(RM) $(CLEANLIBS) $(CLEANOBJS) $(CLEANFILES)
distclean: clean
#-$(RM) Makefile $(RUBY_EXTCONF_H) conftest.* mkmf.log
#-$(RM) core ruby$(EXEEXT) *~ $(DISTCLEANFILES)
realclean: distclean
install: install-so install-rb
install-so: $(RUBYARCHDIR)
install-so: $(RUBYARCHDIR)/$(DLLIB)
$(RUBYARCHDIR)/$(DLLIB): $(DLLIB)
$(INSTALL_PROG) $(DLLIB) $(RUBYARCHDIR)
install-rb: pre-install-rb install-rb-default
install-rb-default: pre-install-rb-default
pre-install-rb: Makefile
pre-install-rb-default: Makefile
$(RUBYARCHDIR):
$(MAKEDIRS) $#
site-install: site-install-so site-install-rb
site-install-so: install-so
site-install-rb: install-rb
.SUFFIXES: .c .m .cc .cxx .cpp .C .o
.cc.o:
$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<
.cxx.o:
$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<
.cpp.o:
$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<
.C.o:
$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<
.c.o:
$(CC) $(INCFLAGS) $(CPPFLAGS) $(CFLAGS) -c $<
$(DLLIB): $(OBJS) Makefile
#-$(RM) $#
$(LDSHARED) -o $# $(OBJS) $(LIBPATH) $(DLDFLAGS) $(LOCAL_LIBS) $(LIBS)
$(OBJS): ruby.h defines.h
../../build/src/tools/libtools.so
../../build/external/libraries/alglib/cpp/src/libalglib.so
../../build/external/libraries/CMA-ESpp/cma-es/libcmaes.so
could be the problem. I would try absolute paths here, I could imagine that the pwd is a different one than you expected while running ruby extconf.rb.
Also, I assume you need a dir_config entry for each library you'd like to link in. So
dir_config('libs', HEADER_DIRS, LIB_DIRS)
should be replaced by
dir_config('tools', '<Path to include dir>', '<Path to lib dir>')
dir_config('alglib', '<Path to include dir>', '<Path to lib dir>')
Note that the leading 'lib' should be omitted, just like you would in the -l linker option.
Next, if you want to be absolutely sure that a library is found, replace
have_library('libtools')
by
have_library('tools') or raise
Again, 'lib' is omitted.
If you still can't solve the problem, please post the Makefile generated by `ruby extconf.rb'.