On 11/10/2011 06:24 AM, mark.reinh...@oracle.com wrote:
Some Linux distros have started to adopt a "multiarch" filesystem layout for
shared libraries in order to support the installation of packages for multiple
hardware architectures on a single system.  For more information see, e.g.,
http://wiki.debian.org/Multiarch.

In Ubuntu 11.10 the ALSA shared library, libasound2, was converted to the
multiarch format and so its files moved from their old location, /usr/lib,
to /usr/lib/${ARCH_TRIPLET}.  This caused the JDK build to fail when linking
the Java sound library.  The root cause appears to be that gcc only tries to
resolve undefined symbols against a multiarch library if the library is named
on the command line after the object files containing those symbols.

The fix is simply to move -lasound to the end of the gcc invocation.

I'll push this into JDK 8.  It would trivially backport to 7.

Patch:

--- a/make/javax/sound/jsoundalsa/Makefile
+++ b/make/javax/sound/jsoundalsa/Makefile
@@ -65,7 +65,7 @@
         $(MIDIFILES_export) \
         $(PORTFILES_export)

-LDFLAGS += -lasound
+EXTRA_LIBS += -lasound

  CPPFLAGS += \
         -DUSE_DAUDIO=TRUE \

Thanks,
- Mark

Mark,

The patch is correct, but in order to follow the convention in most other makefiles, I advice to use OTHER_LDLIBS instead of EXTRA_LIBS. I have tested this patch locally on Ubuntu 11.10-x64 for most branches for OpenJDK 6, 7 and 8 and meant to commit it earlier but... please go ahead.

Thank

/Robert

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