RFR: 8367913: LIBDL dependency seems to be not needed for some jdk libs [v3]

[Magnus Ihse Bursie]

On Tue, 23 Sep 2025 08:10:03 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> A couple of JDK native libs link to $(LIBDL) , but some do not use symbols from it.
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add comment regarding LIBSYSLOOKUP and LIBDL

make/modules/java.base/Lib.gmk line 199:

> 197:       CXXFLAGS := -std=c++17, \
> 198:       DISABLED_WARNINGS_gcc := unused-variable, \
> 199:       LIBS_linux := $(LIBDL) $(LIBM), \

You need to restore the libdl dependency as well, not just document why it's needed. ;-)

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PR Review Comment: https://git.openjdk.org/jdk/pull/27358#discussion_r2372023487