Question

this is my first time using Eclipse, and my first time programming in a linux environment. So I might end up posting some semi-usless information, but I’m just trying to give what ever details I can.

The Issue: I’m trying to build a project, and I’m getting the following errors and warnings.

The Question: What would I have to do, and or get, in order to start working with c++ in linux, within an IDE? Fixing the error would be great, but the above stated is my underlying goal.

IDE Info:

Eclipse
Version: Helios Release
Build id: 20100617-1415

OS Info:

Fedora 13: i686

Errors(1 item)

make: *** [src/xoorMath.o] Error 127 xoorMath C/C++ Problem

Warnings(2 items)

Error launching external scanner info generator (g++ -E -P -v -dD /home/xoorath/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp) xoorMath Unknown  C/C++ Problem
Error launching external scanner info generator (g++ -E -P -v -dD /home/xoorath/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp) xoorMath Unknown  C/C++ Problem

Source Code

//============================================================================
// Name        : xoorMath.cpp
// Author      : 
// Version     :
// Copyright   : Your copyright notice
// Description : Hello World in C++, Ansi-style
//============================================================================

#include <iostream>
using namespace std;

int main() {
    cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!

    return 0;
}

Generated Makefile

################################################################################
# Automatically-generated file. Do not edit!
################################################################################

-include ../makefile.init

RM := rm -rf

# All of the sources participating in the build are defined here
-include sources.mk
-include subdir.mk
-include src/subdir.mk
-include objects.mk

ifneq ($(MAKECMDGOALS),clean)
ifneq ($(strip $(C++_DEPS)),)
-include $(C++_DEPS)
endif
ifneq ($(strip $(C_DEPS)),)
-include $(C_DEPS)
endif
ifneq ($(strip $(CC_DEPS)),)
-include $(CC_DEPS)
endif
ifneq ($(strip $(CPP_DEPS)),)
-include $(CPP_DEPS)
endif
ifneq ($(strip $(CXX_DEPS)),)
-include $(CXX_DEPS)
endif
ifneq ($(strip $(C_UPPER_DEPS)),)
-include $(C_UPPER_DEPS)
endif
endif

-include ../makefile.defs

# Add inputs and outputs from these tool invocations to the build variables 

# All Target
all: xoorMath

# Tool invocations
xoorMath: $(OBJS) $(USER_OBJS)
    @echo 'Building target: $@'
    @echo 'Invoking: GCC C++ Linker'
    g++  -o"xoorMath" $(OBJS) $(USER_OBJS) $(LIBS)
    @echo 'Finished building target: $@'
    @echo ' '

# Other Targets
clean:
    -$(RM) $(OBJS)$(C++_DEPS)$(C_DEPS)$(CC_DEPS)$(CPP_DEPS)$(EXECUTABLES)$(CXX_DEPS)$(C_UPPER_DEPS) xoorMath
    -@echo ' '

.PHONY: all clean dependents
.SECONDARY:

-include ../makefile.targets

EDIT
Tried running ‘gcc -E -P -v -dD /home/xoorath/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp’

[root@wt227-09-fedora xoorath]# gcc -E -P -v -dD /home/xoorath/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp
Using built-in specs.
Target: i686-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch=i686 --build=i686-redhat-linux
Thread model: posix
gcc version 4.4.4 20100630 (Red Hat 4.4.4-10) (GCC) 
COLLECT_GCC_OPTIONS='-E' '-P' '-v' '-dD' '-mtune=generic' '-march=i686'
 cc1plus -E -quiet -v -P -D_GNU_SOURCE /home/xoorath/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.cpp -mtune=generic -march=i686 -dD
gcc: error trying to exec 'cc1plus': execvp: No such file or directory
[root@wt227-09-fedora xoorath]# 

Answer 1

Simple solution really. Turns out I didn’t have g++. I installed gcc, and perhapse somebody here knows the difference, if so feel free to enlighten me.

I had to go into the console and do the following

yum install gcc-c++

Thats it.