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ExternalProject: Document multiple COMMAND lines 

We support multiple commands per external project step by using
the COMMAND keyword.  Document this behavior and show an example.
While at it, document that shell operators and current working
directory behavior is not defined.
This commit is contained in:
Brad King 2013-07-08 11:35:56 -04:00
parent 448a677148
commit 93c1165705
1 changed files with 9 additions and 0 deletions
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9
Modules/ExternalProject.cmake
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@ -114,6 +114,15 @@
# and <TMP_DIR>
# with corresponding property values.
#
# Any builtin step that specifies a "<step>_COMMAND cmd..." or custom
# step that specifies a "COMMAND cmd..." may specify additional command
# lines using the form "COMMAND cmd...". At build time the commands will
# be executed in order and aborted if any one fails. For example:
# ... BUILD_COMMAND make COMMAND echo done ...
# specifies to run "make" and then "echo done" during the build step.
# Whether the current working directory is preserved between commands
# is not defined. Behavior of shell operators like "&&" is not defined.
#
# The 'ExternalProject_Get_Property' function retrieves external project
# target properties:
# ExternalProject_Get_Property(<name> [prop1 [prop2 [...]]])