diff options
Diffstat (limited to 'package/alsa-lib/alsa-lib-0004-conditional-enabling-of-libdl-in-m4.patch')
| -rw-r--r-- | package/alsa-lib/alsa-lib-0004-conditional-enabling-of-libdl-in-m4.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/package/alsa-lib/alsa-lib-0004-conditional-enabling-of-libdl-in-m4.patch b/package/alsa-lib/alsa-lib-0004-conditional-enabling-of-libdl-in-m4.patch new file mode 100644 index 0000000000..c533419baa --- /dev/null +++ b/package/alsa-lib/alsa-lib-0004-conditional-enabling-of-libdl-in-m4.patch @@ -0,0 +1,35 @@ +alsa-lib: conditionally enable libdl in AM_PATH_ALSA m4 macro + +The AM_PATH_ALSA macro in utils/alsa.m4 unconditionally uses -ldl. This +breaks compilation of alsa-utils (and probably other packages using this +macro) for targets that do not support dynamic loading, such as for +Blackfin FLAT binaries. + +This patch updates the macro to check if dlopen is available, and use that +result to conditionally add -ldl to the list of libraries. + +Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> + +--- + +diff --git a/utils/alsa.m4 b/utils/alsa.m4 +--- a/utils/alsa.m4 ++++ b/utils/alsa.m4 +@@ -44,6 +44,8 @@ if test "$alsa_inc_prefix" != "" ; then + fi + AC_MSG_RESULT($ALSA_CFLAGS) + ++AC_CHECK_LIB(c, dlopen, LIBDL="", [AC_CHECK_LIB(dl, dlopen, LIBDL="-ldl")]) ++ + dnl add any special lib dirs + AC_MSG_CHECKING(for ALSA LDFLAGS) + if test "$alsa_prefix" != "" ; then +@@ -52,7 +54,7 @@ if test "$alsa_prefix" != "" ; then + fi + + dnl add the alsa library +-ALSA_LIBS="$ALSA_LIBS -lasound -lm -ldl -lpthread" ++ALSA_LIBS="$ALSA_LIBS -lasound -lm $LIBDL -lpthread" + LIBS="$ALSA_LIBS $LIBS" + AC_MSG_RESULT($ALSA_LIBS) + |
