CGAL users discussion list

[Ramin H <>]

Matthew,
Thank you for your help. I also followed this thread
(https://lists-sop.inria.fr/sympa/arc/cgal-discuss/2009-06/msg00014.html)
where you asked a similar question.

I have compiled CGAL3.5 myself. (Ubuntu does not have a binary for
this version and I need the latest version for some features).
Location of CGAL is in my home directory /home/ramin/CGAL-3.5

This is how the .pro file looks like:
---- begin: nef.pro ----
SOURCES =  main.cpp
QT           += opengl
QT           += xml
INCLUDEPATH  += "/usr/include"
INCLUDEPATH  += "/home/ramin/CGAL-3.5/include"
LIBS  += -L"/usr/lib"
LIBS  += -L"/home/ramin/CGAL-3.5/lib"
---- end: nef.pro

And qmake generates the following Makefile where I added
"-frounding-math" manually.

I am still getting the same error. Am I adding the flag correctly? Any
help is appreciated.
Thank you.
-Ramin

---- begin: Makefile ----
###########################################################
# Makefile for building: nef
# Generated by qmake (2.01a) (Qt 4.5.2) on: Thu Dec 3 17:54:41 2009
# Project:  nef.pro
# Template: app
# Command: /usr/bin/qmake -unix -o Makefile nef.pro
###########################################################

####### Compiler, tools and options

CC            = gcc
CXX           = g++
DEFINES       = -DQT_NO_DEBUG -DQT_XML_LIB -DQT_OPENGL_LIB
-DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED
CFLAGS        = -pipe -O2 -Wall -W -D_REENTRANT $(DEFINES)
CXXFLAGS      = -pipe -O2 -Wall -W -D_REENTRANT $(DEFINES) -frounding-math
INCPATH       = -I/usr/share/qt4/mkspecs/linux-g++ -I.
-I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui
-I/usr/include/qt4/QtOpenGL -I/usr/include/qt4/QtXml
-I/usr/include/qt4 -I/usr/include -I../../CGAL-3.5/include
-I/usr/X11R6/include -I.
LINK          = g++
LFLAGS        = -Wl,-O1
LIBS          = $(SUBLIBS)  -L/usr/lib -L/usr/X11R6/lib -L/usr/lib
-L/home/ramin/CGAL-3.5/lib -lQtXml -lQtOpenGL -lQtGui -lQtCore -lGLU
-lGL -lpthread
AR            = ar cqs
RANLIB        =
QMAKE         = /usr/bin/qmake
TAR           = tar -cf
COMPRESS      = gzip -9f
COPY          = cp -f
SED           = sed
COPY_FILE     = $(COPY)
COPY_DIR      = $(COPY) -r
INSTALL_FILE  = install -m 644 -p
INSTALL_DIR   = $(COPY_DIR)
INSTALL_PROGRAM = install -m 755 -p
DEL_FILE      = rm -f
SYMLINK       = ln -sf
DEL_DIR       = rmdir
MOVE          = mv -f
CHK_DIR_EXISTS= test -d
MKDIR         = mkdir -p

####### Output directory

OBJECTS_DIR   = ./

####### Files

SOURCES       = main.cpp
OBJECTS       = main.o
DIST          = /usr/share/qt4/mkspecs/common/g++.conf \
                /usr/share/qt4/mkspecs/common/unix.conf \
                /usr/share/qt4/mkspecs/common/linux.conf \
                /usr/share/qt4/mkspecs/qconfig.pri \
                /usr/share/qt4/mkspecs/features/qt_functions.prf \
                /usr/share/qt4/mkspecs/features/qt_config.prf \
                /usr/share/qt4/mkspecs/features/exclusive_builds.prf \
                /usr/share/qt4/mkspecs/features/default_pre.prf \
                /usr/share/qt4/mkspecs/features/release.prf \
                /usr/share/qt4/mkspecs/features/default_post.prf \
                /usr/share/qt4/mkspecs/features/warn_on.prf \
                /usr/share/qt4/mkspecs/features/qt.prf \
                /usr/share/qt4/mkspecs/features/unix/opengl.prf \
                /usr/share/qt4/mkspecs/features/unix/thread.prf \
                /usr/share/qt4/mkspecs/features/moc.prf \
                /usr/share/qt4/mkspecs/features/resources.prf \
                /usr/share/qt4/mkspecs/features/uic.prf \
                /usr/share/qt4/mkspecs/features/yacc.prf \
                /usr/share/qt4/mkspecs/features/lex.prf \
                /usr/share/qt4/mkspecs/features/include_source_dir.prf \
                nef.pro
QMAKE_TARGET  = nef
DESTDIR       =
TARGET        = nef

first: all
####### Implicit rules

.SUFFIXES: .o .c .cpp .cc .cxx .C

.cpp.o:
        $(CXX) -c $(CXXFLAGS) $(INCPATH) -o "$@" "$<"

.cc.o:
        $(CXX) -c $(CXXFLAGS) $(INCPATH) -o "$@" "$<"

.cxx.o:
        $(CXX) -c $(CXXFLAGS) $(INCPATH) -o "$@" "$<"

.C.o:
        $(CXX) -c $(CXXFLAGS) $(INCPATH) -o "$@" "$<"

.c.o:
        $(CC) -c $(CFLAGS) $(INCPATH) -o "$@" "$<"

####### Build rules

all: Makefile $(TARGET)

$(TARGET):  $(OBJECTS)
        $(LINK) $(LFLAGS) -o $(TARGET) $(OBJECTS) $(OBJCOMP) $(LIBS)

Makefile: nef.pro  /usr/share/qt4/mkspecs/linux-g++/qmake.conf
/usr/share/qt4/mkspecs/common/g++.conf \
                /usr/share/qt4/mkspecs/common/unix.conf \
                /usr/share/qt4/mkspecs/common/linux.conf \
                /usr/share/qt4/mkspecs/qconfig.pri \
                /usr/share/qt4/mkspecs/features/qt_functions.prf \
                /usr/share/qt4/mkspecs/features/qt_config.prf \
                /usr/share/qt4/mkspecs/features/exclusive_builds.prf \
                /usr/share/qt4/mkspecs/features/default_pre.prf \
                /usr/share/qt4/mkspecs/features/release.prf \
                /usr/share/qt4/mkspecs/features/default_post.prf \
                /usr/share/qt4/mkspecs/features/warn_on.prf \
                /usr/share/qt4/mkspecs/features/qt.prf \
                /usr/share/qt4/mkspecs/features/unix/opengl.prf \
                /usr/share/qt4/mkspecs/features/unix/thread.prf \
                /usr/share/qt4/mkspecs/features/moc.prf \
                /usr/share/qt4/mkspecs/features/resources.prf \
                /usr/share/qt4/mkspecs/features/uic.prf \
                /usr/share/qt4/mkspecs/features/yacc.prf \
                /usr/share/qt4/mkspecs/features/lex.prf \
                /usr/share/qt4/mkspecs/features/include_source_dir.prf \
                /usr/lib/libQtXml.prl \
                /usr/lib/libQtOpenGL.prl \
                /usr/lib/libQtGui.prl \
                /usr/lib/libQtCore.prl
        $(QMAKE) -unix -o Makefile nef.pro
/usr/share/qt4/mkspecs/common/g++.conf:
/usr/share/qt4/mkspecs/common/unix.conf:
/usr/share/qt4/mkspecs/common/linux.conf:
/usr/share/qt4/mkspecs/qconfig.pri:
/usr/share/qt4/mkspecs/features/qt_functions.prf:
/usr/share/qt4/mkspecs/features/qt_config.prf:
/usr/share/qt4/mkspecs/features/exclusive_builds.prf:
/usr/share/qt4/mkspecs/features/default_pre.prf:
/usr/share/qt4/mkspecs/features/release.prf:
/usr/share/qt4/mkspecs/features/default_post.prf:
/usr/share/qt4/mkspecs/features/warn_on.prf:
/usr/share/qt4/mkspecs/features/qt.prf:
/usr/share/qt4/mkspecs/features/unix/opengl.prf:
/usr/share/qt4/mkspecs/features/unix/thread.prf:
/usr/share/qt4/mkspecs/features/moc.prf:
/usr/share/qt4/mkspecs/features/resources.prf:
/usr/share/qt4/mkspecs/features/uic.prf:
/usr/share/qt4/mkspecs/features/yacc.prf:
/usr/share/qt4/mkspecs/features/lex.prf:
/usr/share/qt4/mkspecs/features/include_source_dir.prf:
/usr/lib/libQtXml.prl:
/usr/lib/libQtOpenGL.prl:
/usr/lib/libQtGui.prl:
/usr/lib/libQtCore.prl:
qmake:  FORCE
        @$(QMAKE) -unix -o Makefile nef.pro

dist:
        @$(CHK_DIR_EXISTS) .tmp/nef1.0.0 || $(MKDIR) .tmp/nef1.0.0
        $(COPY_FILE) --parents $(SOURCES) $(DIST) .tmp/nef1.0.0/ &&
$(COPY_FILE) --parents main.cpp .tmp/nef1.0.0/ && (cd `dirname
.tmp/nef1.0.0` && $(TAR) nef1.0.0.tar nef1.0.0 && $(COMPRESS)
nef1.0.0.tar) && $(MOVE) `dirname .tmp/nef1.0.0`/nef1.0.0.tar.gz . &&
$(DEL_FILE) -r .tmp/nef1.0.0


clean:compiler_clean
        -$(DEL_FILE) $(OBJECTS)
        -$(DEL_FILE) *~ core *.core


####### Sub-libraries

distclean: clean
        -$(DEL_FILE) $(TARGET)
        -$(DEL_FILE) Makefile


mocclean: compiler_moc_header_clean compiler_moc_source_clean

mocables: compiler_moc_header_make_all compiler_moc_source_make_all

compiler_moc_header_make_all:
compiler_moc_header_clean:
compiler_rcc_make_all:
compiler_rcc_clean:
compiler_image_collection_make_all: qmake_image_collection.cpp
compiler_image_collection_clean:
        -$(DEL_FILE) qmake_image_collection.cpp
compiler_moc_source_make_all:
compiler_moc_source_clean:
compiler_uic_make_all:
compiler_uic_clean:
compiler_yacc_decl_make_all:
compiler_yacc_decl_clean:
compiler_yacc_impl_make_all:
compiler_yacc_impl_clean:
compiler_lex_make_all:
compiler_lex_clean:
compiler_clean:

####### Compile

main.o: main.cpp
        $(CXX) -c $(CXXFLAGS) $(INCPATH) -o main.o main.cpp

####### Install

install:   FORCE

uninstall:   FORCE

FORCE:
---- end: Makefile ----

On Thu, Dec 3, 2009 at 7:21 PM, Matthew Denno 
<>
 wrote:
> I think that you need to add LIBS += -lCGAL to your .pro file.  Also you
> should add -frounding-math flag, but I forget exactly how...I am on my
> mobile right now so I can't look.
>
> On Dec 3, 2009 6:53 PM, "Ramin H" 
> <>
>  wrote:
>
> Hi everyone,
>
> I am using CGAL3.5 and Ubuntu 9.10. Most of the examples and demos
> compile successfully but when I try to compile the following code:
>
> ---- begin: main.cpp ----
> #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
> int main() {
>   return 0;
> }
> ---- end main.cpp ----
>
> I get the following errors on the terminal (the Makefile is generated
> from a Qt .pro project file.):
> ------------------
> ramin@ubundev:~/NetBeansProjects/test-cgal$
>  qmake nef.pro
> ramin@ubundev:~/NetBeansProjects/test-cgal$
>  make
> g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_XML_LIB
> -DQT_OPENGL_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED
> -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore
> -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtOpenGL
> -I/usr/include/qt4/QtXml -I/usr/include/qt4 -I/usr/include
> -I../../CGAL-3.5/include -I/usr/X11R6/include -I. -o main.o main.cpp
> g++ -Wl,-O1 -o nef main.o    -L/usr/lib -L/usr/X11R6/lib -L/usr/lib
> -L/home/ramin/CGAL-3.5/lib -lQtXml -lQtOpenGL -lQtGui -lQtCore -lGLU
> -lGL -lpthread
> main.o: In function `global constructors keyed to main':
> main.cpp:(.text+0x246): undefined reference to
> `CGAL::assertion_fail(char const*, char const*, int, char const*)'
> main.cpp:(.text+0x270): undefined reference to
> `CGAL::assertion_fail(char const*, char const*, int, char const*)'
> main.cpp:(.text+0x29a): undefined reference to
> `CGAL::assertion_fail(char const*, char const*, int, char const*)'
> main.cpp:(.text+0x2c4): undefined reference to
> `CGAL::assertion_fail(char const*, char const*, int, char const*)'
> collect2: ld returned 1 exit status
> make: *** [nef] Error 1
> ------------------
>
> Any idea what's wrong? Do I need a specific compiler switch to compile
> CGAL programs in this environment?
>
> Thank you,
> -Ramin
>
> --
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