[Scons-users] Small troubles while trying simple scons build for my project

[Steven Truppe]

On 2016-09-18 03:52, Steven Truppe wrote:
>
>
> On 2016-09-18 03:32, Steven Truppe wrote:
>> Hi everyone, i've a small question and i solved it before but then 
>> stuck again: here is my file structure:
>> /bin
>> /docs
>> /src
>> /src/MainApp.c
>> /intern
>> /intern/Error/Error.h
>> /intern/Error/Error.c
>> /intern/Error/TestError.c
>> /intern/Error/SConscript
>> SConstruct
>> It should be a very simple setup to create my build system for a 
>> larger project i'm working on.
>> the SConstruct file looks like this:

import os
env = Environment(
  ENV = os.environ,
  CPPPATH = "intern/"
)
Export("env")
env.SConscript(r'intern/Error/SConscript', variant_dir=r'#build/Error/', 
duplicate=0)


And the SConscript file looks like:

    Import("env")
    env.Library("error", "Error.c")
    env.Program("TestError", ["TestError.c"])



Error.h:

    #ifndef ERROR_HEADER
    #define ERROR_HEADER


    void err_hello(void);
    void err_message(char *message);


    #endif


Error.c:

    #include "Error.h"

    #include <stdio.h>


    void err_hello(){
         printf("HEllO");
    }

    void err_message(char *message) {
         printf("Error: '%s' in file %i on line %i in file %s",
    &message, __LINE__, __FILE__, __func__);


And finaly the TestError.c file:

    #include "Error.h"

    int main(int argc, char **argv) {
         err_hello();
         err_message("This is an error message");

         return(0);
    }





>> So far so good, now my problem is that i get this error message when 
>> i try to compile:
>
>> gcc -o build/Error/Error.o -c -Ibuild/Error/intern 
>> -Iintern/Error/intern intern/Error/Error.c
>> gcc -o build/Error/TestError.o -c -Ibuild/Error/intern 
>> -Iintern/Error/intern intern/Error/TestError.c
>> gcc -o build/Error/TestError build/Error/TestError.o
>> build/Error/TestError.o: In function `main':
>> TestError.c:(.text+0x10): undefined reference to `err_hello'
>> TestError.c:(.text+0x1a): undefined reference to `err_message'
>> collect2: error: ld returned 1 exit status
>> scons: *** [build/Error/TestError] Error 1
>> I had the same issue when used a .cpp file in my project but that's 
>> now only c so i have no clue... can someone look at the code and help 
>> me a bit out here, it would would be a great help!
>>
>>
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>
>
>
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