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<title>GNU libitm: Enabling libitm</title>

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<a name="Enabling-libitm-1"></a>
<h2 class="chapter">1 Enabling libitm</h2>

<p>To activate support for TM in C/C++, the compile-time flag <samp>-fgnu-tm</samp>
must be specified. This enables TM language-level constructs such as
transaction statements (e.g., <code>__transaction_atomic</code>, see <a href="C_002fC_002b_002b-Language-Constructs-for-TM.html#C_002fC_002b_002b-Language-Constructs-for-TM">C/C++ Language Constructs for TM</a> for details).
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