Fix signal prototype on SunOS to avoid C++ pedantic error

From-SVN: r11652

gcc/fixincludes

@@ -2568,9 +2568,48 @@ if [ -r ${LIB}/$file ]; then
   rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
   if cmp $file ${LIB}/$file >/dev/null 2>&1; then
     rm -f ${LIB}/$file
+  else
+    # Find any include directives that use "file".
+    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
+      dir=`echo $file | sed -e s'|/[^/]*$||'`
+      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
+    done
   fi
 fi
 
+# signal.h on SunOS defines signal using (), which causes trouble when
+# compiling with g++ -pedantic.
+for file in signal.h sys/signal.h; do
+  if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
+    cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
+    chmod +w ${LIB}/$file 2>/dev/null
+    chmod a+r ${LIB}/$file 2>/dev/null
+  fi
+
+  if [ -r ${LIB}/$file ]; then
+    echo "Checking for bad C++ prototype in $file"
+    sed -e '/^void	(\*signal())();$/i\
+  #ifdef __cplusplus\
+  void	(*signal(...))(...);\
+  #else
+  ' \
+	-e '/^void	(\*signal())();$/a\
+  #endif
+  ' \
+      ${LIB}/$file > ${LIB}/${file}.sed
+    rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
+    if cmp $file ${LIB}/$file >/dev/null 2>&1; then
+      rm -f ${LIB}/$file
+    else
+      # Find any include directives that use "file".
+      for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
+	dir=`echo $file | sed -e s'|/[^/]*$||'`
+	required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
+      done
+    fi
+  fi
+done
+
 # This loop does not appear to do anything, because it uses file
 # rather than $file when setting target.  It also appears to be
 # unnecessary, since the main loop processes symbolic links.