![Peter Korsgaard](/assets/img/avatar_default.png)
Autogenerated from rename-patch.py (http://patchwork.ozlabs.org/patch/403345) Signed-off-by: Samuel Martin <s.martin49@gmail.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
36 lines
1.1 KiB
Diff
36 lines
1.1 KiB
Diff
alsa-lib: conditionally enable libdl in AM_PATH_ALSA m4 macro
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The AM_PATH_ALSA macro in utils/alsa.m4 unconditionally uses -ldl. This
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breaks compilation of alsa-utils (and probably other packages using this
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macro) for targets that do not support dynamic loading, such as for
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Blackfin FLAT binaries.
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This patch updates the macro to check if dlopen is available, and use that
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result to conditionally add -ldl to the list of libraries.
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Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
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---
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diff --git a/utils/alsa.m4 b/utils/alsa.m4
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--- a/utils/alsa.m4
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+++ b/utils/alsa.m4
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@@ -44,6 +44,8 @@ if test "$alsa_inc_prefix" != "" ; then
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fi
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AC_MSG_RESULT($ALSA_CFLAGS)
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+AC_CHECK_LIB(c, dlopen, LIBDL="", [AC_CHECK_LIB(dl, dlopen, LIBDL="-ldl")])
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+
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dnl add any special lib dirs
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AC_MSG_CHECKING(for ALSA LDFLAGS)
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if test "$alsa_prefix" != "" ; then
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@@ -52,7 +54,7 @@ if test "$alsa_prefix" != "" ; then
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fi
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dnl add the alsa library
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-ALSA_LIBS="$ALSA_LIBS -lasound -lm -ldl -lpthread"
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+ALSA_LIBS="$ALSA_LIBS -lasound -lm $LIBDL -lpthread"
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LIBS="$ALSA_LIBS $LIBS"
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AC_MSG_RESULT($ALSA_LIBS)
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