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waf: cmake: improve documentation regarding target option

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That feature can also be used within wscripts with no problem. The code added
in the example shows that.
This commit is contained in:
Gustavo Jose de Sousa 2016-02-25 12:34:37 +00:00 committed by Lucas De Marchi
parent 76bae701a8
commit 4f82120c8f
1 changed files with 18 additions and 3 deletions
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21
Tools/ardupilotwaf/cmake.py
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@ -64,11 +64,10 @@ OrderedDict. Example::
... ...
) )
There may be cases when you want to stablish dependency between other tasks and There may be cases when you want to establish dependency between other tasks and
the external build system's products (headers and libraries, for example). In the external build system's products (headers and libraries, for example). In
that case, you can specify the specific files in the option 'target' of your that case, you can specify the specific files in the option 'target' of your
cmake_build task generator. In general, that feature is supposed to be used by cmake_build task generator. Example::
other tools rather than by wscripts. Example::
def build(bld): def build(bld):
... ...
@ -76,6 +75,22 @@ other tools rather than by wscripts. Example::
# declaring on target only what I'm interested in # declaring on target only what I'm interested in
foo.cmake_build('baz', target='path/to/foobld/include/baz.h') foo.cmake_build('baz', target='path/to/foobld/include/baz.h')
# myprogram.c includes baz.h, so the dependency is (implicitly)
# established
bld.program(target='myprogram', source='myprogram.c')
# another example
foo.cmake_build('another', target='another.txt')
bld(
rule='${CP} ${SRC} ${TGT}',
source=bld.bldnode.find_or_declare('another.txt'),
target='another_copied.txt',
)
You can also establish the dependency directly on a task object::
@feature('myfeature') @feature('myfeature')
def process_myfeature(self): def process_myfeature(self):
baz_taskgen = self.bld.get_tgen_by_name('baz') baz_taskgen = self.bld.get_tgen_by_name('baz')