GCC, C++, and broken linking

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Author: Alan Dayley
Date:  
Subject: GCC, C++, and broken linking
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First, might I suggest that you ask these types of questions on the plug-devel list. That is what it is for.

Second, it looks to me like you are not including a standard header file. Maybe you missed putting it in at the top of your module. Something like "#include <stdio.h>"

Third, it would be helpful to see the code or a part of it to know more of the full story.

I'll be watching the plug-devel list...

Alan

Original message attached.

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Somebody please explain what I'm doing wrong here. I'm trying to work on some of my Advanced Placement computer science AB projects here at home. Well, I typed in the code, checked it twice and ran 'gcc main.cpp' to no avail. First it gave me warnings about textspace standard so I fixed the code to make it recent (the book is 1994) and tried again. I now get all kinds of linker errors:<BR>
<BR>
/tmp/ccv7OZu3.o: In function `main':<BR>
/tmp/ccv7OZu3.o(.text+0x36): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; std::endl&lt;char, std::char_traits&lt;char&gt; &gt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;)'<BR>
/tmp/ccv7OZu3.o(.text+0x43): undefined reference to `std::cout'<BR>
/tmp/ccv7OZu3.o(.text+0x48): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; std::operator&lt;&lt; &lt;std::char_traits&lt;char&gt; &gt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;, char const*)'<BR>
/tmp/ccv7OZu3.o(.text+0x51): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;::operator&lt;&lt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; (*)(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;))'<BR>
/tmp/ccv7OZu3.o(.text+0x86): undefined reference to `std::cout'<BR>
/tmp/ccv7OZu3.o(.text+0x8b): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; std::operator&lt;&lt; &lt;char, std::char_traits&lt;char&gt; &gt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;, std::_Setw)'<BR>
/tmp/ccv7OZu3.o(.text+0x94): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;::operator&lt;&lt;(int)'<BR>
/tmp/ccv7OZu3.o(.text+0x10b): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; std::endl&lt;char, std::char_traits&lt;char&gt; &gt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;)'<BR>
/tmp/ccv7OZu3.o(.text+0x118): undefined reference to `std::cout'<BR>
/tmp/ccv7OZu3.o(.text+0x11d): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; std::operator&lt;&lt; &lt;std::char_traits&lt;char&gt; &gt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;, char const*)'<BR>
/tmp/ccv7OZu3.o(.text+0x126): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;::operator&lt;&lt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; (*)(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;))'<BR>
/tmp/ccv7OZu3.o(.text+0x15b): undefined reference to `std::cout'<BR>
/tmp/ccv7OZu3.o(.text+0x160): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; std::operator&lt;&lt; &lt;char, std::char_traits&lt;char&gt; &gt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;, std::_Setw)'<BR>
/tmp/ccv7OZu3.o(.text+0x169): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;::operator&lt;&lt;(int)'<BR>
/tmp/ccv7OZu3.o(.text+0x17b): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; std::endl&lt;char, std::char_traits&lt;char&gt; &gt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;)'<BR>
/tmp/ccv7OZu3.o(.text+0x180): undefined reference to `std::cout'<BR>
/tmp/ccv7OZu3.o(.text+0x185): undefined reference to `std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;::operator&lt;&lt;(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp; (*)(std::basic_ostream&lt;char, std::char_traits&lt;char&gt; &gt;&amp;))'<BR>
/tmp/ccv7OZu3.o: In function `__static_initialization_and_destruction_0(int, int)':<BR>
/tmp/ccv7OZu3.o(.text+0x1b6): undefined reference to `std::ios_base::Init::Init[in-charge]()'<BR>
/tmp/ccv7OZu3.o: In function `__tcf_0':<BR>
/tmp/ccv7OZu3.o(.text+0x1e5): undefined reference to `std::ios_base::Init::~Init [in-charge]()'<BR>
/tmp/ccv7OZu3.o(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'<BR>
collect2: ld returned 1 exit status<BR>
<BR>
Does anyone know what I can do about this?<BR>
<TT></TT><BR>
<BR>
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<PRE>-- Zach Schimke</PRE>
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