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| <title>Debugging with GDB: Requirements</title> |
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| <a name="Requirements"></a> |
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| Next: <a href="Running-Configure.html#Running-Configure" accesskey="n" rel="next">Running Configure</a>, Up: <a href="Installing-GDB.html#Installing-GDB" accesskey="u" rel="up">Installing GDB</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> |
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| <a name="Requirements-for-Building-GDB"></a> |
| <h3 class="section">C.1 Requirements for Building <small>GDB</small></h3> |
| <a name="index-building-GDB_002c-requirements-for"></a> |
| |
| <p>Building <small>GDB</small> requires various tools and packages to be available. |
| Other packages will be used only if they are found. |
| </p> |
| <a name="Tools_002fPackages-Necessary-for-Building-GDB"></a> |
| <h3 class="heading">Tools/Packages Necessary for Building <small>GDB</small></h3> |
| <dl compact="compact"> |
| <dt>ISO C90 compiler</dt> |
| <dd><p><small>GDB</small> is written in ISO C90. It should be buildable with any |
| working C90 compiler, e.g. GCC. |
| </p> |
| </dd> |
| </dl> |
| |
| <a name="Tools_002fPackages-Optional-for-Building-GDB"></a> |
| <h3 class="heading">Tools/Packages Optional for Building <small>GDB</small></h3> |
| <dl compact="compact"> |
| <dt>Expat</dt> |
| <dd><a name="Expat"></a><p><small>GDB</small> can use the Expat XML parsing library. This library may be |
| included with your operating system distribution; if it is not, you |
| can get the latest version from <a href="http://expat.sourceforge.net">http://expat.sourceforge.net</a>. |
| The <samp>configure</samp> script will search for this library in several |
| standard locations; if it is installed in an unusual path, you can |
| use the <samp>--with-libexpat-prefix</samp> option to specify its location. |
| </p> |
| <p>Expat is used for: |
| </p> |
| <ul> |
| <li> Remote protocol memory maps (see <a href="Memory-Map-Format.html#Memory-Map-Format">Memory Map Format</a>) |
| </li><li> Target descriptions (see <a href="Target-Descriptions.html#Target-Descriptions">Target Descriptions</a>) |
| </li><li> Remote shared library lists (See <a href="Library-List-Format.html#Library-List-Format">Library List Format</a>, |
| or alternatively see <a href="Library-List-Format-for-SVR4-Targets.html#Library-List-Format-for-SVR4-Targets">Library List Format for SVR4 Targets</a>) |
| </li><li> MS-Windows shared libraries (see <a href="Files.html#Shared-Libraries">Shared Libraries</a>) |
| </li><li> Traceframe info (see <a href="Traceframe-Info-Format.html#Traceframe-Info-Format">Traceframe Info Format</a>) |
| </li><li> Branch trace (see <a href="Branch-Trace-Format.html#Branch-Trace-Format">Branch Trace Format</a>, |
| see <a href="Branch-Trace-Configuration-Format.html#Branch-Trace-Configuration-Format">Branch Trace Configuration Format</a>) |
| </li></ul> |
| |
| </dd> |
| <dt>zlib</dt> |
| <dd><a name="index-compressed-debug-sections"></a> |
| <p><small>GDB</small> will use the ‘<samp>zlib</samp>’ library, if available, to read |
| compressed debug sections. Some linkers, such as GNU gold, are capable |
| of producing binaries with compressed debug sections. If <small>GDB</small> |
| is compiled with ‘<samp>zlib</samp>’, it will be able to read the debug |
| information in such binaries. |
| </p> |
| <p>The ‘<samp>zlib</samp>’ library is likely included with your operating system |
| distribution; if it is not, you can get the latest version from |
| <a href="http://zlib.net">http://zlib.net</a>. |
| </p> |
| </dd> |
| <dt>iconv</dt> |
| <dd><p><small>GDB</small>’s features related to character sets (see <a href="Character-Sets.html#Character-Sets">Character Sets</a>) require a functioning <code>iconv</code> implementation. If you are |
| on a GNU system, then this is provided by the GNU C Library. Some |
| other systems also provide a working <code>iconv</code>. |
| </p> |
| <p>If <small>GDB</small> is using the <code>iconv</code> program which is installed |
| in a non-standard place, you will need to tell <small>GDB</small> where to find it. |
| This is done with <samp>--with-iconv-bin</samp> which specifies the |
| directory that contains the <code>iconv</code> program. |
| </p> |
| <p>On systems without <code>iconv</code>, you can install GNU Libiconv. If you |
| have previously installed Libiconv, you can use the |
| <samp>--with-libiconv-prefix</samp> option to configure. |
| </p> |
| <p><small>GDB</small>’s top-level <samp>configure</samp> and <samp>Makefile</samp> will |
| arrange to build Libiconv if a directory named <samp>libiconv</samp> appears |
| in the top-most source directory. If Libiconv is built this way, and |
| if the operating system does not provide a suitable <code>iconv</code> |
| implementation, then the just-built library will automatically be used |
| by <small>GDB</small>. One easy way to set this up is to download GNU |
| Libiconv, unpack it, and then rename the directory holding the |
| Libiconv source code to ‘<samp>libiconv</samp>’. |
| </p></dd> |
| </dl> |
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