diff --git a/patches/gcc-5.3.0/0016-invalid_tls_model.diff b/patches/gcc-5.3.0/0016-invalid_tls_model.diff
new file mode 100644
index 0000000..d3b2b8e
--- /dev/null
+++ b/patches/gcc-5.3.0/0016-invalid_tls_model.diff
@@ -0,0 +1,51 @@
+--- gcc-7.3.0/libgomp/configure.tgt.orig	2018-09-25 13:44:16.654561098 -0400
++++ gcc-7.3.0/libgomp/configure.tgt	2018-09-25 13:44:50.452688100 -0400
+@@ -10,23 +10,6 @@
+ #  XCFLAGS		Add extra compile flags to use.
+ #  XLDFLAGS		Add extra link flags to use.
+ 
+-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
+-if test $gcc_cv_have_tls = yes ; then
+-  case "${target}" in
+-
+-    *-*-k*bsd*-gnu*)
+-	;;
+-
+-    *-*-linux* | *-*-gnu*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
+-	;;
+-
+-    *-*-rtems*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
+-	;;
+-  esac
+-fi
+-
+ # Since we require POSIX threads, assume a POSIX system by default.
+ config_path="posix"
+ 
+--- gcc-7.3.0/libitm/configure.tgt.orig	2018-09-25 13:47:31.019296903 -0400
++++ gcc-7.3.0/libitm/configure.tgt	2018-09-25 13:47:37.676322335 -0400
+@@ -27,22 +27,6 @@
+ #  XCFLAGS		Add extra compile flags to use.
+ #  XLDFLAGS		Add extra link flags to use.
+ 
+-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
+-if test "$gcc_cv_have_tls" = yes ; then
+-  case "${target}" in
+-
+-    # For x86, we use slots in the TCB head for most of our TLS.
+-    # The setup of those slots in beginTransaction can afford to
+-    # use the global-dynamic model.
+-    i[456]86-*-linux* | x86_64-*-linux*)
+-	;;
+-    
+-    *-*-linux*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
+-	;;
+-  esac
+-fi
+-
+ # Map the target cpu to an ARCH sub-directory.  At the same time,
+ # work out any special compilation flags as necessary.
+ case "${target_cpu}" in
diff --git a/patches/gcc-6.4.0/0016-invalid_tls_model.diff b/patches/gcc-6.4.0/0016-invalid_tls_model.diff
new file mode 100644
index 0000000..d3b2b8e
--- /dev/null
+++ b/patches/gcc-6.4.0/0016-invalid_tls_model.diff
@@ -0,0 +1,51 @@
+--- gcc-7.3.0/libgomp/configure.tgt.orig	2018-09-25 13:44:16.654561098 -0400
++++ gcc-7.3.0/libgomp/configure.tgt	2018-09-25 13:44:50.452688100 -0400
+@@ -10,23 +10,6 @@
+ #  XCFLAGS		Add extra compile flags to use.
+ #  XLDFLAGS		Add extra link flags to use.
+ 
+-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
+-if test $gcc_cv_have_tls = yes ; then
+-  case "${target}" in
+-
+-    *-*-k*bsd*-gnu*)
+-	;;
+-
+-    *-*-linux* | *-*-gnu*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
+-	;;
+-
+-    *-*-rtems*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
+-	;;
+-  esac
+-fi
+-
+ # Since we require POSIX threads, assume a POSIX system by default.
+ config_path="posix"
+ 
+--- gcc-7.3.0/libitm/configure.tgt.orig	2018-09-25 13:47:31.019296903 -0400
++++ gcc-7.3.0/libitm/configure.tgt	2018-09-25 13:47:37.676322335 -0400
+@@ -27,22 +27,6 @@
+ #  XCFLAGS		Add extra compile flags to use.
+ #  XLDFLAGS		Add extra link flags to use.
+ 
+-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
+-if test "$gcc_cv_have_tls" = yes ; then
+-  case "${target}" in
+-
+-    # For x86, we use slots in the TCB head for most of our TLS.
+-    # The setup of those slots in beginTransaction can afford to
+-    # use the global-dynamic model.
+-    i[456]86-*-linux* | x86_64-*-linux*)
+-	;;
+-    
+-    *-*-linux*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
+-	;;
+-  esac
+-fi
+-
+ # Map the target cpu to an ARCH sub-directory.  At the same time,
+ # work out any special compilation flags as necessary.
+ case "${target_cpu}" in
diff --git a/patches/gcc-7.3.0/0016-invalid_tls_model.diff b/patches/gcc-7.3.0/0016-invalid_tls_model.diff
new file mode 100644
index 0000000..d3b2b8e
--- /dev/null
+++ b/patches/gcc-7.3.0/0016-invalid_tls_model.diff
@@ -0,0 +1,51 @@
+--- gcc-7.3.0/libgomp/configure.tgt.orig	2018-09-25 13:44:16.654561098 -0400
++++ gcc-7.3.0/libgomp/configure.tgt	2018-09-25 13:44:50.452688100 -0400
+@@ -10,23 +10,6 @@
+ #  XCFLAGS		Add extra compile flags to use.
+ #  XLDFLAGS		Add extra link flags to use.
+ 
+-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
+-if test $gcc_cv_have_tls = yes ; then
+-  case "${target}" in
+-
+-    *-*-k*bsd*-gnu*)
+-	;;
+-
+-    *-*-linux* | *-*-gnu*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
+-	;;
+-
+-    *-*-rtems*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
+-	;;
+-  esac
+-fi
+-
+ # Since we require POSIX threads, assume a POSIX system by default.
+ config_path="posix"
+ 
+--- gcc-7.3.0/libitm/configure.tgt.orig	2018-09-25 13:47:31.019296903 -0400
++++ gcc-7.3.0/libitm/configure.tgt	2018-09-25 13:47:37.676322335 -0400
+@@ -27,22 +27,6 @@
+ #  XCFLAGS		Add extra compile flags to use.
+ #  XLDFLAGS		Add extra link flags to use.
+ 
+-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
+-if test "$gcc_cv_have_tls" = yes ; then
+-  case "${target}" in
+-
+-    # For x86, we use slots in the TCB head for most of our TLS.
+-    # The setup of those slots in beginTransaction can afford to
+-    # use the global-dynamic model.
+-    i[456]86-*-linux* | x86_64-*-linux*)
+-	;;
+-    
+-    *-*-linux*)
+-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
+-	;;
+-  esac
+-fi
+-
+ # Map the target cpu to an ARCH sub-directory.  At the same time,
+ # work out any special compilation flags as necessary.
+ case "${target_cpu}" in