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configure.sh: Tweak default of use_x86inc for 64-bit, non-pic, and Darwin.

Mainly a readability fix.

Change-Id: Idfd4de9f25d9b9f9931d8e885d9d031473d5df6d

--- a/build/make/configure.sh

+++ b/build/make/configure.sh

@@ -1222,10 +1222,12 @@

         fi

     fi

-    # default use_x86inc to yes if pic is no or 64bit or we are not on darwin

-    if [ ${tgt_isa} = x86_64 -o ! "$pic" = "yes" -o \

-         "${tgt_os#darwin}" = "${tgt_os}"  ]; then

-      soft_enable use_x86inc

+    tgt_os_no_version=$(echo "${tgt_os}" | tr -d "[0-9]")

+    # Default use_x86inc to yes when we are 64 bit, non-pic, or on any

+    # non-Darwin target.

+    if [ "${tgt_isa}" = "x86_64" ] || [ "${pic}" != "yes" ] || \

+            [ "${tgt_os_no_version}" != "darwin" ]; then

+        soft_enable use_x86inc

     fi

     # Position Independent Code (PIC) support, for building relocatable