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ENH: Added warning about using this command to avoid listing sources for a library by hand. It is supposed to be used only for Templates directories.

This commit is contained in:
Brad King 2004-07-24 19:58:27 -04:00
parent f929104ae8
commit 67d3634e46
1 changed files with 13 additions and 1 deletions
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14
Source/cmAuxSourceDirectoryCommand.h
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@ -66,7 +66,19 @@ public:
return
" AUX_SOURCE_DIRECTORY(dir VARIABLE)\n"
"Collects the names of all the source files in the specified "
"directory and stores the list in the variable provided.";
"directory and stores the list in the variable provided. This command "
"is intended to be used by projects that use explicit template "
"instantiation. Template instantiation files can be stored in a "
"\"Templates\" subdirectory and collected automatically using this "
"command to avoid manually listing all instantiations.\n"
"It is tempting to use this command to avoid writing the list of source "
"files for a library or executable target. While this seems to work, "
"there is no way for CMake to generate a build system that knows when a "
"new source file has been added. Normally the generated build system "
"knows when it needs to rerun CMake because the CMakeLists.txt file "
"is modified to add a new source. When the source is just added to "
"the directory without modifying this file, one would have to manually "
"rerun CMake to generate a build system incorporating the new file.";
}
cmTypeMacro(cmAuxSourceDirectoryCommand, cmCommand);