Question

我试图从Debian 6编译一个.cpp程序。我有一个工作的makefile，它只适用于.c档案，但我需要在.cpp上编译我的程序。所以这里是makefile：

#
# Build the examples.
#

# The great thing about GNU Make is that it knows so much about your     lifestyle, you don't need to
# tell it the obvious things. This file is a minimal makefile.

# You run this makefile by typing `make' in the directory with the   makefile

# You can find out more about make by typing `info make'.

# This tells Make that we need to link everything with the robot code:
LDLIBS=/usr/lib/robot.a

CC=gcc

# This variable has a handy copy of all the things we aim to produce
EXEC= read_sensor turn_on_and_off control_joint cerrar_mano

# Thses are all the things we need to compile:
all: ${EXEC}  

CFLAGS=-I/usr/realtime/include/ -D_ISOC99_SOURCE -D_GNU_SOURCE - rtai_types -rtai_lxrt

# Make now looks around the directory, finds the read_sensor.c and
# turn_on_and_off.c files, works out it can compile them into the
# read_sensor and turn_on_and_off executables, and does so!

# However, for the kernel modules, we need to do a bit more.
rt_control: rt_control.o
ld -E -O2 -r -o $@ $^ 

# This is an example of making a binary from several object files, as an   example only!
fred: bert.o jim.o
ld -E -O2 -o $@ $^ 

# We need to tell the compiler quite a lot about where to find the right  header files
rt_control.o: control.c
$(CC) -c -O2  -DREALTIME -DRTAI_3  -I./include/ -I. -I../  -isystem     /usr/realtime/include/  -isystem /usr/src/linux/include   -o $@ $^


# We put some housekeeping in here:

# This target is used to remove intermediate files Make produces.
clean:; rm -f *.o
# This target is used to remove output files Make produces as well.
realclean: clean
rm -f ${EXEC}

所以当我在终端上写make myprogramname.cpp这就是我得到的：

In file included from /usr/include/robot/robot.h:38,
             from Programa_Hand2.cpp:4:
/usr/include/robot/sensor.h:24:44: error: rtai_types.h: No such file or  directory
/usr/include/robot/sensor.h:38:23: error: rtai_lxrt.h: No such file or directory
In file included from /usr/include/robot/robot.h:38,
             from Programa_Hand2.cpp:4:
/usr/include/robot/sensor.h:168: error: 'RTIME' does not name a type
In file included from /usr/include/robot/robot.h:38,
             from Programa_Hand2.cpp:4:
/usr/include/robot/sensor.h:178: error: 'RTIME' does not name a type
In file included from Programa_Hand2.cpp:4:
/usr/include/robot/robot.h:194: error: 'RTIME' does not name a type
/usr/include/robot/robot.h:244: error: 'RTIME' does not name a type
Programa_Hand2.cpp: In function 'int main()':
Programa_Hand2.cpp:18: error: expected initializer before 'printf'
Programa_Hand2.cpp:19: error: 'f' was not declared in this scope
hand@hand-cartagena:~/Desktop/Joaquin/examples$ make Programa_Hand2
g++     Programa_Hand2.cpp  /usr/lib/robot.a -o Programa_Hand2
In file included from /usr/include/robot/robot.h:38,
             from Programa_Hand2.cpp:4:
/usr/include/robot/sensor.h:24:44: error: rtai_types.h: No such file or  directory
/usr/include/robot/sensor.h:38:23: error: rtai_lxrt.h: No such file or directory
In file included from /usr/include/robot/robot.h:38,
             from Programa_Hand2.cpp:4:
/usr/include/robot/sensor.h:168: error: 'RTIME' does not name a type
In file included from /usr/include/robot/robot.h:38,
             from Programa_Hand2.cpp:4:
/usr/include/robot/sensor.h:178: error: 'RTIME' does not name a type
In file included from Programa_Hand2.cpp:4:
/usr/include/robot/robot.h:194: error: 'RTIME' does not name a type
/usr/include/robot/robot.h:244: error: 'RTIME' does not name a type
Programa_Hand2.cpp: In function 'int main()':
Programa_Hand2.cpp:18: error: expected initializer before 'printf'
Programa_Hand2.cpp:19: error: 'f' was not declared in this scope
make: *** [Programa_Hand2] Error 1

还尝试使用gcc -o Programa_Hand2 Programa_Hand2.cpp并得到同样的错误，我认为我必须用makefile改变它但不知道它的错误是什么有任何想法吗？我是编程和linux的新手，所以我对此感到有点生气，因为我需要在c ++上编译程序，我编译它并在c上正常工作。谢谢你的帮助！

编辑：从互联网上做一些研究，似乎是RTAI不支持C ++;所以有什么方法可以用C ++编译它？另外，我的#includes是：

#include <stdio.h>
#include <robot/robot.h>
#include <unistd.h>
#include <error.h>
#include <iostream>

#include "RobotConfig.h"

再次感谢！

Answer 1

简而言之，您需要使用命令g ++而不是gcc来处理C ++文件。

您需要使用C ++编译器而不是C编译器编译C ++文件，并且存在差异。

GNU C ++编译器的命令是g ++，假设你安装了它。这可能是因为你似乎有一个C编译器。

将一个变量添加到名为CXX的Makefile中，并将其设置为等于g ++。然后使用CXX变量作为命令而不是CC变量来编译C ++代码。

$（CXX）-o＆lt; .output文件名＆gt; ＆lt; .cpp文件到这里＆gt;

rtai没有这样的文件或目录错误编译

1 个答案: