Don't duplicate compiler warning flags when linking

Automake already passes all CFLAGS to the linker too, so it
is not necessary to set WARN_LDFLAGS in addition to the
WARN_CFLAGS variable.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

daemon/Makefile.am

@@ -111,7 +111,6 @@ libvirtd_CFLAGS = \
 	-DQEMUD_PID_FILE="\"$(QEMUD_PID_FILE)\""
 
 libvirtd_LDFLAGS =					\
-	$(WARN_LDFLAGS)					\
 	$(PIE_LDFLAGS)					\
 	$(RELRO_LDFLAGS)				\
 	$(COVERAGE_LDFLAGS)

m4/virt-compile-warnings.m4

@@ -224,10 +224,6 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
       gl_WARN_ADD([-Werror])
     fi
 
-    WARN_LDFLAGS=$WARN_CFLAGS
-    AC_SUBST([WARN_CFLAGS])
-    AC_SUBST([WARN_LDFLAGS])
-
     dnl Needed to keep compile quiet on python 2.4
     save_WARN_CFLAGS=$WARN_CFLAGS
     WARN_CFLAGS=

src/Makefile.am

@@ -1979,7 +1979,6 @@ if WITH_LIBVIRTD
 libexec_PROGRAMS += libvirt_iohelper
 libvirt_iohelper_SOURCES = $(UTIL_IO_HELPER_SOURCES)
 libvirt_iohelper_LDFLAGS = \
-		$(WARN_LDFLAGS) \
 		$(AM_LDFLAGS) \
 		$(PIE_LDFLAGS) \
 		$(RELRO_LDFLAGS) \
@@ -2003,7 +2002,6 @@ libexec_PROGRAMS += libvirt_parthelper
 
 libvirt_parthelper_SOURCES = $(STORAGE_HELPER_DISK_SOURCES)
 libvirt_parthelper_LDFLAGS = \
-		$(WARN_LDFLAGS) \
 		$(AM_LDFLAGS) \
 		$(PIE_LDFLAGS) \
 		$(RELRO_LDFLAGS) \
@@ -2036,7 +2034,6 @@ libvirt_sanlock_helper_CFLAGS = \
 		$(PIE_CFLAGS) \
 		$(NULL)
 libvirt_sanlock_helper_LDFLAGS = \
-		$(WARN_LDFLAGS) \
 		$(AM_LDFLAGS) \
 		$(PIE_LDFLAGS) \
 		$(RELRO_LDFLAGS) \
@@ -2053,7 +2050,6 @@ libvirt_lxc_SOURCES =						\
 		$(NODE_INFO_SOURCES)				\
 		$(DATATYPES_SOURCES)
 libvirt_lxc_LDFLAGS = \
-		$(WARN_LDFLAGS) \
 		$(AM_LDFLAGS) \
 		$(PIE_LDFLAGS) \
 		$(RELRO_LDFLAGS) \
@@ -2098,7 +2094,6 @@ libexec_PROGRAMS += virt-aa-helper
 virt_aa_helper_SOURCES = $(SECURITY_DRIVER_APPARMOR_HELPER_SOURCES)
 
 virt_aa_helper_LDFLAGS = \
-		$(WARN_LDFLAGS) \
 		$(AM_LDFLAGS) \
 		$(PIE_LDFLAGS) \
 		$(RELRO_LDFLAGS) \

tools/Makefile.am

@@ -98,7 +98,6 @@ virt_host_validate_SOURCES = \
 		$(NULL)
 
 virt_host_validate_LDFLAGS = \
-		$(WARN_LDFLAGS) \
 		$(PIE_LDFLAGS) \
 		$(RELRO_LDFLAGS) \
 		$(COVERAGE_LDFLAGS) \
@@ -131,10 +130,9 @@ virsh_SOURCES =							\
 		virsh-volume.c virsh-volume.h			\
 		$(NULL)
 
-virsh_LDFLAGS = $(WARN_LDFLAGS) $(COVERAGE_LDFLAGS)
+virsh_LDFLAGS = $(COVERAGE_LDFLAGS)
 virsh_LDADD =							\
 		$(STATIC_BINARIES)				\
-		$(WARN_LDFLAGS)					\
 		$(PIE_LDFLAGS)					\
 		$(RELRO_LDFLAGS) \
 		../src/libvirt.la				\