https://nsis.sourceforge.io/mediawiki/index.php?action=history&feed=atom&title=Reference%2F%21ifmacrodefReference/!ifmacrodef - Revision history2026-05-25T18:50:20ZRevision history for this page on the wikiMediaWiki 1.39.17https://nsis.sourceforge.io/mediawiki/index.php?title=Reference/!ifmacrodef&diff=23545&oldid=prevJan at 11:12, 3 June 20132013-06-03T11:12:45Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">↠Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:12, 3 June 2013</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> !echo "SomeMacro is defined"</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> !echo "SomeMacro is defined"</div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">''Command introduced with NSIS v2.0''</ins></div></td></tr>
</table>Janhttps://nsis.sourceforge.io/mediawiki/index.php?title=Reference/!ifmacrodef&diff=23424&oldid=prevJan: Created page with "=!ifmacrodef= gflag [bcheck gflag [...]]] This command, when paired with an !endif command, will tell the compiler whether or not to compile the lines in between the two li..."2013-05-27T15:07:16Z<p>Created page with "=!ifmacrodef= gflag [bcheck gflag [...]]] This command, when paired with an !endif command, will tell the compiler whether or not to compile the lines in between the two li..."</p>
<p><b>New page</b></p><div>=!ifmacrodef=<br />
<br />
gflag [bcheck gflag [...]]]<br />
<br />
This command, when paired with an !endif command, will tell the compiler whether or not to compile the lines in between the two lines. If the macro gflag exists, then the contained lines will be compiled. Otherwise, they will be skipped. 'bcheck' can be specified as & (boolean and) or | (boolean or) along with more gflags -- precedence is simple, left to right.<br />
<br />
<highlight-nsis>!macro SomeMacro<br />
!macroend<br />
!ifmacrodef SomeMacro<br />
!echo "SomeMacro is defined"<br />
!endif</highlight-nsis></div>Jan