Hi Martin,
you have to add a custom command to generate your lib and make your custom
target depending on it:
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/xxx.a
COMMAND
unzip -o ${CMAKE_CURRENT_SOURCE_DIR}/${ZIPFILE}
DEPENDS
${CMAKE_CURRENT_SOURCE_DIR}/${ZIPFILE}
)
add_custom_target(
${TARGET}_lib
DEPENDS
${CMAKE_CURRENT_BINARY_DIR}/xxx.a
)
This will unzip the xxx.a only if your zipfile has changed.
Regards, Kiwi
On 28.11.2012 13:41, Martin Koller wrote:
Hi,
I'm struggling with the following requirement:
I have a lib stored in a zip file (the lib is not built via cmake, e.g.
delivered from external company).
I want a target to link against this lib and want to extract the lib from the
zip file only if
this specific target is being built, and only if it is not already unzipped.
What I tried in the libs directory:
set(TARGET xxx)
add_library(${TARGET} STATIC IMPORTED GLOBAL)
set_target_properties(${TARGET} PROPERTIES IMPORTED_LOCATION
${CMAKE_CURRENT_BINARY_DIR}/xxx.a)
set(ZIPFILE xxx.zip)
add_custom_target(${TARGET}_lib
COMMAND unzip -o ${CMAKE_CURRENT_SOURCE_DIR}/${ZIPFILE}
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${ZIPFILE}
)
add_dependencies(${TARGET} ${TARGET}_lib)
Then I can use this target in e.g.
target_link_libraries(myTarget xxx)
The above however unzips the lib every time, even if it is already existing.
Is it possible to avoid that ?
P.S:This is the simple example. I have other similar problems when the zip file
not only
holds 1 library but also a bunch of headerfiles and more than 1 lib ...
--
Kay-Uwe (Kiwi) Lorenz
IT Department
ModuleWorks GmbH
Ritterstr. 12a
52072 Aachen
Germany
HRB 11871
Amtsgericht Aachen
Geschäftsführer Yavuz Murtezaoglu
--
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