[CMake] find_library

[CHEVRIER, Marc]

Defining a variable using -D option does not put this one in the environment (i.e. system environment) so using ENV will fails...




On 14/01/16 10:28, "CMake on behalf of Vania Joloboff" <cmake-bounces at cmake.org on behalf of vania.joloboff at inria.fr> wrote:

>I am running cmake 3.2.2 on Linux 64 bits
>
>I run cmake with
>
>  cmake -G "Unix Makefiles" -DSYSTEMC_PATH=$HOME/systemc-2.3.1/
>
>In my CMakeLists.txt,
>
>If I put
>
>  find_library(SYSC_LIB systemc PATHS "${SYSTEMC_PATH}"
>               PATH_SUFFIXES lib-linux64 lib64-linux lib64-linux64)
>
>it works.
>
>If I put
>  find_library(SYSC_LIB systemc PATHS ENV SYSTEMC_PATH
>               PATH_SUFFIXES lib-linux64 lib64-linux lib64-linux64)
>
>which I think should be identical, I get error
>CMake Error at CMakeLists.txt:28 (message):
>   ERROR: SYSC_LIB-NOTFOUND
>
>Can anyone explain the difference and why the second does not work ?
>
>btw
>
>find_library(SYSC_LIB NAMES systemc foobar PATHS "${SYSTEMC_PATH}"
>                PATH_SUFFIXES lib-linux64 lib64-linux lib64-linux64)
>
>  also works
>and
>     find_library(SYSC_LIB systemc PATHS ENV SYSTEMC_PATH
>       PATH_SUFFIXES lib-linux64 lib64-linux lib64-linux64
>       NO_DEFAULT_PATH)
>also fails
>
>At least it is consistent :-(
>
>Thanx
>
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