gcc: obey ldflags in the link of libgcc

Explicitly obey it, the way it should, rather than only relying on
--with-linker-hash-style.

(From OE-Core rev: 9095742d1468477baefe69098817f38a8d2dd750)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-4.9.inc

@@ -90,6 +90,7 @@ SRC_URI = "\
     file://0072-support-ffile-prefix-map.patch \
     file://0073-Reuse-fdebug-prefix-map-to-replace-ffile-prefix-map.patch \
     file://0074-fdebug-prefix-map-support-to-remap-relative-path.patch \
+    file://0075-libgcc-use-ldflags.patch \
 "
 SRC_URI[md5sum] = "6f831b4d251872736e8e9cc09746f327"
 SRC_URI[sha256sum] = "2332b2a5a321b57508b9031354a8503af6fdfb868b8c1748d33028d100a8b67e"

meta/recipes-devtools/gcc/gcc-4.9/0075-libgcc-use-ldflags.patch

@@ -0,0 +1,16 @@
+Link libgcc using LDFLAGS, not just SHLIB_LDFLAGS
+
+Signed-off-by: Christopher Larson <chris_larson@mentor.com>
+Upstream-Status: Pending
+
+--- gcc-5.3.0.orig/libgcc/config/t-slibgcc
++++ gcc-5.3.0/libgcc/config/t-slibgcc
+@@ -32,7 +32,7 @@ SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_S
+ 	$(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
+ 
+ SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \
+-	$(SHLIB_LDFLAGS) \
++	$(LDFLAGS) $(SHLIB_LDFLAGS) \
+ 	-o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp @multilib_flags@ \
+ 	$(SHLIB_OBJS) $(SHLIB_LC) && \
+ 	rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \

meta/recipes-devtools/gcc/gcc-5.3.inc

@@ -88,6 +88,7 @@ SRC_URI = "\
            file://0056-Enable-libc-provide-ssp-and-gcc_cv_target_dl_iterate.patch \
            file://0057-unwind-fix-for-musl.patch \
            file://0058-fdebug-prefix-map-support-to-remap-relative-path.patch \
+           file://0059-libgcc-use-ldflags.patch \
 "
 
 BACKPORTS = ""

meta/recipes-devtools/gcc/gcc-5.3/0059-libgcc-use-ldflags.patch

@@ -0,0 +1,16 @@
+Link libgcc using LDFLAGS, not just SHLIB_LDFLAGS
+
+Signed-off-by: Christopher Larson <chris_larson@mentor.com>
+Upstream-Status: Pending
+
+--- gcc-5.3.0.orig/libgcc/config/t-slibgcc
++++ gcc-5.3.0/libgcc/config/t-slibgcc
+@@ -32,7 +32,7 @@ SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_S
+ 	$(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
+ 
+ SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \
+-	$(SHLIB_LDFLAGS) \
++	$(LDFLAGS) $(SHLIB_LDFLAGS) \
+ 	-o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp @multilib_flags@ \
+ 	$(SHLIB_OBJS) $(SHLIB_LC) && \
+ 	rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \