> praveen wrote:
> > I got many undefined reference errors starting from undefined reference to
> > `Fl::visual(int)'. May i know how to solve this errors?
>
> Sounds like you're not linking in libfltk.a.
>
> Try looking at the basic flags FLTK wants you to link with by running:
>
> fltk-config --ldflags
>
> ..and if your program is making use of opengl, then look at:
>
> fltk-config --ldflags --use-gl
>
> For more info on compile/link flags see 'fltk-config -help',
> and the link Duncan mentioned:
> http://www.fltk.org/doc-1.1/basics.html#basics
> ..in particular the 'Compiling Programs with Standard Compilers'
> section.
I am not compiling single program as to compile with fltk-config --use-gl
--compile test.cpp . I'm compiling three programs together, creating object
files and linking three object files together to get an executable. may i know
how to compile multiple files using fltk-config?
I'm using a makefile to compile which is below :
CC = icc
CXX = icc
LINK = icc
DEBUG = -c -g
# DEBUG =
#
# # CFLAGS = -Wall -g
# # CXXFLAGS = -Wall -g
# INCPATH = -I/usr/local/include -I/usr/X11R6/include
# # LIBS = -L/usr/X11R6/lib -L/usr/local/lib -L/usr/local/lib/libfltk.a
-lXext -lX11 -lm -lsupc++
CFLAGS = -I/usr/X11R6/include
CXXFLAGS= -I/usr/X11R6/include
LDFLAGS= -L/usr/X11R6/lib
LDLIBS= -lm -lXext -lX11 -lsupc++
GLLIBS= -lGLU -lGL
IMAGELIBS= -ljpeg -lpng -lz
LIBNAME=/usr/local/fltk/include/lib/libfltk.a
/usr/local/fltk/include/lib/libfltk_gl.a
LDSTATIC = $(LDFLAGS) $(LIBNAME) $(GLLIBS) $(IMAGELIBS) $(LDLIBS)
# RM = rm -f
FLSRC = /usr/local/fltk/include/FL
TARGET = cube
OBJECTS = \
CubeMain.o \
CubeView.o \
CubeViewUI.o
#
#
SOURCES = CubeMain.cxx \
CubeView.cxx \
CubeViewUI.cxx
%.o: %.cxx
# $(CXX) $(CXXFLAGS) $(INCPATH) $@ $<
# $(CXX) $(CXXFLAGS) $(DEBUG) $(TARGET) -o $(TARGET) $<
$(CXX) $(CXXFLAGS) $(DEBUG) $<
all: $(TARGET)
$(TARGET): $(OBJECTS)
$(LINK) -o $(TARGET) $(OBJECTS) $(LDSTATIC)
CubeMain.o: $(FLSRC)/Fl.H CubeMain.cxx CubeViewUI.h
CubeView.o: CubeView.cxx CubeView.h CubeViewUI.h
CubeViewUI.o: $(FLSRC)/Fl.H $(FLSRC)/Fl_Window.H CubeViewUI.cxx CubeView.h
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