[PATCH] Drop *_so_SOURCES from libasm, libdw, libelf Makefile.am

[Ulf Hermann]

They aren't used and cause warnings from autoconf.

Signed-off-by: Ulf Hermann <ulf.hermann@qt.io>
---
 libasm/ChangeLog   | 4 ++++
 libasm/Makefile.am | 1 -
 libdw/ChangeLog    | 4 ++++
 libdw/Makefile.am  | 1 -
 libelf/ChangeLog   | 4 ++++
 libelf/Makefile.am | 1 -
 6 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/libasm/ChangeLog b/libasm/ChangeLog
index fffcced0..fb282e3e 100644
--- a/libasm/ChangeLog
+++ b/libasm/ChangeLog
@@ -1,3 +1,7 @@
+2017-08-18  Ulf Hermann  <ulf.hermann@qt.io>
+
+	* Makefile.am: Drop libasm_so_SOURCES.
+
 2017-02-27  Ulf Hermann  <ulf.hermann@qt.io>
 
 	* Makefile.am: Use dso_LDFLAGS.
diff --git a/libasm/Makefile.am b/libasm/Makefile.am
index 19fef508..29d2efee 100644
--- a/libasm/Makefile.am
+++ b/libasm/Makefile.am
@@ -62,7 +62,6 @@ libasm_so_LDLIBS += -lpthread
 endif
 
 libasm_so_LIBS = libasm_pic.a
-libasm_so_SOURCES =
 libasm.so$(EXEEXT): $(srcdir)/libasm.map $(libasm_so_LIBS) $(libasm_so_DEPS)
 	$(AM_V_CCLD)$(LINK) $(dso_LDFLAGS) -o $@ \
 		-Wl,--soname,$@.$(VERSION) \
diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index 94e9c9ab..79cce5ce 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,5 +1,9 @@
 2017-08-18  Ulf Hermann  <ulf.hermann@qt.io>
 
+	* Makefile.am: Drop libdw_so_SOURCES.
+
+2017-08-18  Ulf Hermann  <ulf.hermann@qt.io>
+
 	* memory-access.h: Use attribute_packed.
 
 2017-02-27  Ulf Hermann  <ulf.hermann@qt.io>
diff --git a/libdw/Makefile.am b/libdw/Makefile.am
index 8ee46802..af7d7793 100644
--- a/libdw/Makefile.am
+++ b/libdw/Makefile.am
@@ -106,7 +106,6 @@ libdw_so_LIBS = libdw_pic.a ../libdwelf/libdwelf_pic.a \
 	  ../libdwfl/libdwfl_pic.a ../libebl/libebl.a
 libdw_so_DEPS = ../lib/libeu.a ../libelf/libelf.so
 libdw_so_LDLIBS = $(libdw_so_DEPS) -ldl -lz $(argp_LDADD) $(zip_LIBS)
-libdw_so_SOURCES =
 libdw.so$(EXEEXT): $(srcdir)/libdw.map $(libdw_so_LIBS) $(libdw_so_DEPS)
 # The rpath is necessary for libebl because its $ORIGIN use will
 # not fly in a setuid executable that links in libdw.
diff --git a/libelf/ChangeLog b/libelf/ChangeLog
index 7bd9e1bc..23484499 100644
--- a/libelf/ChangeLog
+++ b/libelf/ChangeLog
@@ -1,5 +1,9 @@
 2017-08-18  Ulf Hermann  <ulf.hermann@qt.io>
 
+	* Makefile.am: Drop libelf_so_SOURCES.
+
+2017-08-18  Ulf Hermann  <ulf.hermann@qt.io>
+
 	* gelf_xlate.c: Use attribute_packed.
 
 2017-04-27  Ulf Hermann  <ulf.hermann@qt.io>
diff --git a/libelf/Makefile.am b/libelf/Makefile.am
index ddaeaa2b..a749a1bb 100644
--- a/libelf/Makefile.am
+++ b/libelf/Makefile.am
@@ -102,7 +102,6 @@ libelf_so_LDLIBS += -lpthread
 endif
 
 libelf_so_LIBS = libelf_pic.a
-libelf_so_SOURCES =
 libelf.so$(EXEEXT): $(srcdir)/libelf.map $(libelf_so_LIBS) $(libelf_so_DEPS)
 	$(AM_V_CCLD)$(LINK) $(dso_LDFLAGS) -o $@ \
 		-Wl,--soname,$@.$(VERSION) \
-- 
2.11.0