diff --git a/firefox.spec b/firefox.spec
index cf2e21e..c13123a 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -87,7 +87,7 @@
 Summary:        Mozilla Firefox Web browser
 Name:           firefox
 Version:        29.0.1
-Release:        4%{?pre_tag}%{?dist}
+Release:        5%{?pre_tag}%{?dist}
 URL:            http://www.mozilla.org/projects/firefox/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
@@ -124,6 +124,7 @@ Patch301:        firefox-aarch64-double-convertsion.patch
 Patch302:        firefox-aarch64-libevent.patch
 # mbo 963024
 Patch303:        firefox-aarch64-xpcom.patch
+Patch304:        mozilla-973977.patch
 
 %if %{official_branding}
 # Required by Mozilla Corporation
@@ -244,6 +245,9 @@ cd %{tarballdir}
 %patch301 -p1 -b .aarch64-dbl
 %patch302 -p1 -b .aarch64-libevent
 %patch303 -p1 -b .aarch64-xpcom
+%ifarch ppc64
+%patch304 -p1 -b .973977
+%endif
 
 %if %{official_branding}
 # Required by Mozilla Corporation
@@ -647,6 +651,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #---------------------------------------------------------------------
 
 %changelog
+* Tue May 23 2014 Martin Stransky <stransky@redhat.com> - 29.0.1-5
+- Added a build fix for ppc64 - rhbz#1100495
+
 * Tue May 20 2014 Martin Stransky <stransky@redhat.com> - 29.0.1-4
 - Enabled necko-wifi
 
diff --git a/mozilla-973977.patch b/mozilla-973977.patch
new file mode 100644
index 0000000..d8ec932
--- /dev/null
+++ b/mozilla-973977.patch
@@ -0,0 +1,31 @@
+# HG changeset patch
+# Parent c2172c2aaa693e00c989f76c83b83a2be97afaab
+# User Ulrich Weigand <uweigand@de.ibm.com>
+Bug 973977 - Mark SharedStub hidden to fix ppc64 build failure
+
+
+diff --git a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
+--- a/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
++++ b/xpcom/reflect/xptcall/src/md/unix/xptcstubs_asm_ppc64_linux.s
+@@ -15,16 +15,21 @@
+ .set f15,15; .set f16,16; .set f17,17; .set f18,18; .set f19,19
+ .set f20,20; .set f21,21; .set f22,22; .set f23,23; .set f24,24
+ .set f25,25; .set f26,26; .set f27,27; .set f28,28; .set f29,29
+ .set f30,30; .set f31,31
+ 
+         .section ".text"
+         .align 2
+         .globl SharedStub
++        # Make the symbol hidden so that the branch from the stub does
++        # not go via a PLT.  This is not only better for performance,
++        # but may be necessary to avoid linker errors since there is
++        # no place to restore the TOC register in a sibling call.
++        .hidden SharedStub
+         .section ".opd","aw"
+         .align 3
+ 
+ SharedStub:
+         .quad   .SharedStub,.TOC.@tocbase
+         .previous
+         .type   SharedStub,@function
+