[meta-ti] [ti2018.03/rocko/master][PATCH] ti-cgt-arm: prevent build of existing library

[Jacob Stiffler]

* Prevent a potential error as mklib will return an error if the
  library already exists.
* The error encountered is the following:

| >> ERROR: mklib: destination library .../work/x86_64-linux/ti-cgt-arm-native/16.9.2-r1/ti-cgt-arm-16.9.2/ti-cgt-arm_16.9.2.LTS/lib/rtsv7R4_A_le_v3D16_eabi.lib already exists
| WARNING: .../work/x86_64-linux/ti-cgt-arm-native/16.9.2-r1/temp/run.do_compile.13758:1 exit 1 from 'lib/mklib --pattern=rtsv7R4_A_le_v3D16_eabi.lib'

Signed-off-by: Jacob Stiffler <j-stiffler at ti.com>
---
 recipes-ti/devtools/ti-cgt-arm.inc | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/recipes-ti/devtools/ti-cgt-arm.inc b/recipes-ti/devtools/ti-cgt-arm.inc
index b9f7566..e83973b 100644
--- a/recipes-ti/devtools/ti-cgt-arm.inc
+++ b/recipes-ti/devtools/ti-cgt-arm.inc
@@ -9,7 +9,7 @@ require recipes-ti/includes/ti-paths.inc
 
 S = "${WORKDIR}/ti-cgt-arm-${PV}"
 
-PR = "r1"
+PR = "r2"
 
 SRC_URI = "http://software-dl.ti.com/codegen/esd/cgt_public_sw/TMS470/${PV}.LTS/${BINFILE};name=${BINFILE_NAME}"
 
@@ -19,8 +19,12 @@ TI_BIN_UNPK_CMDS = ""
 
 do_compile_append() {
     cd ${S}/ti-cgt-arm_${PV}.LTS
-    export PATH=${PATH}:${S}/ti-cgt-arm_${PV}.LTS/bin
-    lib/mklib --pattern=rtsv7R4_A_le_v3D16_eabi.lib
+
+    if [ ! -f "./lib/rtsv7R4_A_le_v3D16_eabi.lib" ]
+    then
+        export PATH=${PATH}:${S}/ti-cgt-arm_${PV}.LTS/bin
+        lib/mklib --pattern=rtsv7R4_A_le_v3D16_eabi.lib
+    fi
 }
 
 do_install() {
-- 
2.7.4