By the way, the new generator expression support in 3.13, is this for LINK_FLAGS or LINK_OPTIONS. And regardless of the former, will it be possible to compute a relative path based on generator expressions, i.e. file(RELATIVE $<TARGET_FILE_DIR:mytarget> $<TARGET_FILE_DIR:mytargetlib>)?
On Thu, Sep 27, 2018 at 5:03 PM Hendrik Greving < hendrik.greving....@gmail.com> wrote: > Thanks. Ok one step back. What we want is to have the same relative path > from binary/executable to linked library in build and install tree (which > we assume is the same for us). Looks like by default, e.g. cmake 3.9, puts > in an absolute path. The current (c-)makefiles compute the relative part of > an executable -> library by using LOCATION and add this to > -Wl,-rpath=$ORIGIN/[relative part]. We want to do the same w/o LOCATION > (i.e. resolving CMP0026) > > On Thu, Sep 27, 2018 at 7:29 AM Brad King <brad.k...@kitware.com> wrote: > >> On 09/26/2018 10:23 AM, Hendrik Greving wrote: >> > Is there any way before 3.13 to achieve what I need? Right now we >> > modify LINK_FLAGS based on something that is computed with values >> > from LOCATION. >> [snip] >> > our cmake setup is using LOCATION property for two targets to compute >> > a relative path from these two, and adds this to LINK_FLAGS >> > (for rpath, but irrelevant in this context). >> >> To at least see if 3.13 will support your use case, you could >> try a nightly binary from here: >> >> https://cmake.org/files/dev/?C=M;O=D >> >> Use `$<TARGET_FILE_DIR:mytarget>/..` to refer to a path relative >> to the target file location. >> >> I've never seen a need to adjust link flags based on the target >> location. CMake has several features for RPATH support. What >> are you really trying to do? >> >> -Brad >> >
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