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[pf3gnuchains/gcc-fork.git] / libgcc / configure

diff --git a/libgcc/configure b/libgcc/configure
index 75bf903..6315ecd 100644 (file)
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -3420,6 +3420,31 @@ esac
 # Collect host-machine-specific information.
 . ${srcdir}/config.host
 
+# Check if Solaris/x86 linker supports ZERO terminator unwind entries.
+# This is after config.host so we can augment tmake_file.
+# Link with -nostartfiles -nodefaultlibs since neither are present while
+# building libgcc.
+case ${host} in
+i?86-*-solaris2.1[0-9]*)
+  cat > conftest.s <<EOF
+       .section        .eh_frame,"a",@unwind
+       .zero   4
+       .section        .jcr,"aw",@progbits
+       .zero   8
+EOF
+  if { ac_try='${CC-cc} -shared -nostartfiles -nodefaultlibs -o conftest.so conftest.s 1>&5'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+      # configure expects config files in libgcc/config, so need a relative
+      # path here.
+      tmake_file="${tmake_file} ../../gcc/config/i386/t-crtstuff"
+  fi
+  ;;
+esac
+
 # Check for visibility support.  This is after config.host so that
 # we can check for asm_hidden_op.
 echo "$as_me:$LINENO: checking for __attribute__((visibility(\"hidden\")))" >&5