On 07-Oct-14 18:00, Bill Hoffman wrote:
On 10/7/2014 2:19 AM, Ruslan Baratov via CMake wrote:
Hi,
I have a problem with parallel build of project with custom command.
Custom command generates two files and depends on generator script. For
optimization purpose first file created only when not exists. This lead
to conflict, even if I "protect" custom command with a custom target and
set explicit dependencies:
Can you give an example?
Yes, I leave a links at the end of the previous message:
CMakeLists.txt: http://pastebin.com/dspw4j1S
generate.cmake: http://pastebin.com/XNS6hPRX
add_dependencies should be what you use.
Have it:
add_custom_target(
Generate
...
)
add_library(Alib "${A}")
add_library(Blib "${B}")
add_dependencies(Alib Generate)
add_dependencies(Blib Generate)
Tested on Ubuntu with Makefile generator:
> cmake -H. -B_builds
> cmake --build _builds -- -j4 # First build OK
> touch generate.cmake
> cmake --build _builds -- -j4 # Second build. Unexpected `Script run`
I'm expecting 1 message `Script run`, but I have 5 messages. If I modify
`generate.cmake` script so it always write the file then everything
works fine.
Ruslo
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