ο κώδικας είναι, όπως τον κατέβασα απ' το eclass των λειτουργικών**** Build of configuration Debug for project ops ****
make -k all
Building file: ../ops.c
Invoking: GCC C Compiler
gcc -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"ops.d" -MT"ops.d" -o"ops.o" "../ops.c"
Finished building: ../ops.c
Building target: ops
Invoking: GCC C Linker
gcc -o"ops" ./ops.o
/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/crt1.o: In function `_start':
(.text+0x18): undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [ops] Error 1
make: Target `all' not remade because of errors.
Build complete for project ops
Code: Select all
#include <stdio.h>
int main(){
int child, b;
char command[25]={"find / -name "*.c" -print"};
child=fork();
if (child == 0) //child {
printf("child\n");
execlp (command,(char *) 0);
}
else{ //parent
wait(&b);
printf("parent\n");
}
}Υπ' όψιν, χρησιμοποιώ managed make c project.
Ορίστε και το autogenerated makefile
Code: Select all
################################################################################
# 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 objects.mk
ifneq ($(MAKECMDGOALS),clean)
ifneq ($(strip $(C_DEPS)),)
-include $(C_DEPS)
endif
endif
-include ../makefile.defs
# Add inputs and outputs from these tool invocations to the build variables
# All Target
all: ops
# Tool invocations
ops: $(OBJS) $(USER_OBJS)
@echo 'Building target: $@'
@echo 'Invoking: GCC C Linker'
g++ -o"ops" $(OBJS) $(USER_OBJS) $(LIBS)
@echo 'Finished building target: $@'
@echo ' '
# Other Targets
clean:
-$(RM) $(OBJS)$(C_DEPS)$(EXECUTABLES) ops
-@echo ' '
.PHONY: all clean dependents
.SECONDARY:
-include ../makefile.targets
)?
