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| 2 |
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| 3 | <head>
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| 4 | <title>GCC Frequently Asked Questions</title>
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| 5 | </head>
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| 6 |
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| 7 | <body>
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| 8 |
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| 9 | <h1>GCC Frequently Asked Questions</h1>
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| 10 |
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| 11 | <p>The latest version of this document is always available at
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| 12 | <a href="http://gcc.gnu.org/faq.html">http://gcc.gnu.org/faq.html</a>.</p>
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| 13 |
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| 14 | <p>This FAQ tries to answer specific questions concerning GCC. For
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| 15 | general information regarding C, C++, resp. Fortran please check the
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| 16 | <a href="http://www.eskimo.com/~scs/C-faq/top.html">comp.lang.c FAQ</a>,
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| 17 | <a href="http://www.jamesd.demon.co.uk/csc/faq.html">comp.std.c++
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| 18 | FAQ</a>,
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| 19 | and the <a href="http://www.fortran.com/fortran/info.html">Fortran
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| 20 | Information page</a>.</p>
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| 21 |
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| 22 | <p>Other GCC-related FAQs:
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| 23 | <a href="http://gcc.gnu.org/onlinedocs/libstdc++/faq/index.html">
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| 24 | libstdc++-v3</a>, and
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| 25 | <a href="http://gcc.gnu.org/java/faq.html">GCJ</a>.</p>
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| 26 |
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| 27 | <hr />
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| 28 | <h1>Questions</h1>
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| 29 | <ol>
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| 30 | <li><a href="#general">General information</a>
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| 31 | <ol>
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| 32 | <li><a href="#gcc">What is the relationship between GCC and EGCS?</a></li>
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| 33 | <li><a href="#open-development">What is an open development model?</a></li>
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| 34 | <li><a href="#support">How do I get a bug fixed or a feature added?</a></li>
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| 35 | <li><a href="#platforms">Does GCC work on my platform?</a></li>
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| 36 | </ol></li>
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| 37 |
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| 38 | <li><a href="#installation">Installation</a>
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| 39 | <ol>
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| 40 | <li><a href="#multiple">How to install multiple versions of GCC</a></li>
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| 41 | <li><a href="#rpath">Dynamic linker is unable to find GCC libraries</a></li>
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| 42 | <li><a href="#rpath">libstdc++/libio tests fail badly with --enable-shared</a></li>
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| 43 | <li><a href="#gas">GCC can not find GNU as/GNU ld</a></li>
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| 44 | <li><a href="#environ">cpp: Usage:... Error</a></li>
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| 45 | <li><a href="#optimizing">Optimizing the compiler itself</a></li>
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| 46 | <li><a href="#iconv">Why does <code>libiconv</code> get linked into <code>jc1</code> on Solaris?</a></li>
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| 47 | </ol></li>
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| 48 |
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| 49 | <li><a href="#testsuite">Testsuite problems</a>
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| 50 | <ol>
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| 51 | <li><a href="#testoptions">How do I pass flags like
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| 52 | <code>-fnew-abi</code> to the testsuite?</a></li>
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| 53 | <li><a href="#multipletests">How can I run the test suite with multiple options?</a></li>
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| 54 | </ol></li>
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| 55 |
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| 56 | <li><a href="#old">Older versions of GCC</a>
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| 57 | <ol>
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| 58 | <li><a href="#2.95sstream">Is there a stringstream / sstream for GCC 2.95.2?</a></li>
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| 59 | </ol></li>
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| 60 |
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| 61 | <li><a href="#misc">Miscellaneous</a>
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| 62 | <ol>
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| 63 | <li><a href="#friend">Friend Templates</a></li>
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| 64 | <li><a href="#dso"><code>dynamic_cast</code>, <code>throw</code>, <code>typeid</code> don't work with shared libraries</a></li>
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| 65 | <li><a href="#generated_files">Why do I need autoconf, bison, xgettext, automake, etc?</a></li>
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| 66 | <li><a href="#picflag-needed">Why can't I build a shared library?</a></li>
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| 67 | <li><a href="#vtables">When building C++, the linker says my constructors, destructors or virtual tables are undefined, but I defined them</a></li>
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| 68 | <li><a href="#incremental">Will GCC someday include an incremental linker?</a></li>
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