[PATCH 0/4] Clang: fix versioned symbol build errors

[Nicholas Vinson <nvinson234@gmail.com>]

When building alsa-lib with the following settings

    CFLAGS='-O3 -pipe'
    CXXFLAGS='-O3 -pipe'
    LDFLAGS=-Wl,-O1		\
	-Wl,--as-needed		\
	-fuse-ld=lld		\
	-rtlib=compiler-rt	\
	-unwindlib=libunwind

the build fails with errors similar to

    ld.lld: error: version script assignment of 'ALSA_0.9.5' to symbol
	'alsa_lisp' failed: symbol not defined

This patch corrects that issue and additional issues found while making
corrections so alsa-lib will successfully build using clang and ld.lld.

This patch set was also submitted as a github PR
(https://github.com/alsa-project/alsa-lib/pull/376).

Signed-off-by: Nicholas Vinson <nvinson234@gmail.com>

Nicholas Vinson (4):
  configure.ac: Update AC_OUTPUT() function
  src/Versions.in: Add guards for opt. alisp symbols
  src/Versions.in: Add guards for pcm and timer syms
  libatopology: Remove version-script flags

 configure.ac                        | 34 +++++++++++++++--------------
 src/Makefile.am                     | 14 +++++++++++-
 src/{Versions.in => Versions.in.in} | 17 +++++++++++++++
 src/topology/Makefile.am            |  8 +------
 4 files changed, 49 insertions(+), 24 deletions(-)
 rename src/{Versions.in => Versions.in.in} (95%)

-- 
2.43.0