Building ArmSoftFloatLib with LTO results in errors like

  .../bin/ld: softfloat.obj: plugin needed to handle lto object
  .../bin/ld: __aeabi_dcmpge.obj: plugin needed to handle lto object
  .../bin/ld: __aeabi_dcmplt.obj: plugin needed to handle lto object
  .../bin/ld: internal error ../../ld/ldlang.c 6299

This library is only linked by OpensslLib at the moment, and only
marginally used at runtime, so just disable LTO for it.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <[email protected]>
---
 ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf 
b/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf
index f090b3f288ce..3c76381b25dc 100644
--- a/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf
+++ b/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf
@@ -48,7 +48,7 @@ [Packages]
   MdePkg/MdePkg.dec
 
 [BuildOptions]
-  GCC:*_*_*_CC_FLAGS = -DSOFTFLOAT_FOR_GCC -Wno-enum-compare
+  GCC:*_*_*_CC_FLAGS = -DSOFTFLOAT_FOR_GCC -Wno-enum-compare -fno-lto
   *_GCC46_*_CC_FLAGS = -fno-tree-vrp
   *_GCC47_*_CC_FLAGS = -fno-tree-vrp
   RVCT:*_*_*_CC_FLAGS = -DSOFTFLOAT_FOR_GCC
-- 
2.7.4

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