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git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@1739 212acab6-be3b-0410-9dea-997c60f758d6
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rainwater 2002-11-15 18:45:47 +00:00
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12
Docs/src/compilerflags.but
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\H{flags} Compiler Flags
\S1{flags} Compiler Flags
The following commands change how the compiler generates code and compresses data. These commands are valid anywhere in the script, and effect every line below where each one is placed (until overridden by another command).
\S{asetcompress} SetCompress
\S2{asetcompress} SetCompress
\c \\<b\\>auto\\</b\\>|force|off
This command sets the compress flag which is used by the installer to determine whether or not data should be compressed. Typically the SetCompress flag will effect the commands after it, and the last SetCompress command in the file also determines whether or not the install info section and uninstall data of the installer is compressed. If compressflag is 'auto', then files are compressed if the compressed size is smaller than the uncompressed size. If compressflag is set to 'force', then the compressed version is always used. If compressflag is 'off' then compression is not used (which can be faster). Note that this option has no effect on bzip2 installers (compression is always used on bzip2 installers).
\S{asetcompressor} SetCompressor
\S2{asetcompressor} SetCompressor
\c \\<b\\>zlib\\</b\\>|bzip2
This command sets the compression algorithm used to compress files/data in the installer. Options are ZLib or BZip2. ZLib (the default) uses deflate compression. This mode uses less memory at runtime and is faster. BZip2 compression is usually better for large installers, but it is slower and uses a lot more memory at runtime.
\S{asetdatablockoptimize} SetDatablockOptimize
\S2{asetdatablockoptimize} SetDatablockOptimize
\c \\<b\\>on\\</b\\>|off
This command tells the compiler whether or not to do datablock optimizations. Datablock optimizations have the compiler check to see if any data being added to the data block is already in the data block, and if so, it is simply referenced as opposed to added (can save a little bit of size). It is highly recommended to leave this option on.
\S{asetdatesave} SetDateSave
\S2{asetdatesave} SetDateSave
\c \\<b\\>on\\</b\\>|off
This command sets the file date/time saving flag which is used by the File command to determine whether or not to save the last write date and time of the file, so that it can be restored on installation. Valid flags are 'on' and 'off'. 'on' is the default.
\S{asetoverwrite} SetOverwrite
\S2{asetoverwrite} SetOverwrite
\c \\<b\\>on\\</b\\>|off|try|ifnewer