Ingo Franzki 4e08c5fcd8 common.mak: Fix the check for shared libraries with check_dep ...

The check_dep macro allows to pass additional compiler & linker
options as 5th argument. This argument might contain shared
libraries to link against (i.e. -lsomething). To ensure that
the check_dep macro always attempts to link to these libraries
'-Wl,--no-as-needed' is needed.

At least on Ubuntu '-Wl,--as-needed' is the default, and with
that, the library might get skipped if it is not really needed
by the program built by the check_dep macro. Furthermore, with
'-Wl,--as-needed' the order of the arguments matters, and thus
a library specified in the 5th argument is at the wrong position,
which leads to link errors and thus the check_dep macro will
report that the dependency is not fulfilled, although it might
be fulfilled.

Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

2025-12-01 13:45:37 +01:00

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