sdl-yasm-sections.patch

   1 Index: configure.in
   2 ===================================================================
   3 --- configure.in        (revision 2987)
   4 +++ configure.in        (working copy)
   5 @@ -640,38 +640,56 @@ CheckNASM()
   6  AC_HELP_STRING([--enable-nasm], [use nasm assembly blitters on x86 [[default=yes]]]),
   7                    , enable_nasm=yes)
   8      if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_nasm = xyes; then
   9 +        CompileNASM()
  10 +        {
  11 +            # Usage: CompileNASM <filename>
  12 +            AC_MSG_CHECKING(to see if $NASM supports $1)
  13 +            if $NASM $NASMFLAGS $1 -o $1.o >&AS_MESSAGE_LOG_FD 2>&1; then
  14 +                CompileNASM_ret="yes"
  15 +            else
  16 +                CompileNASM_ret="no"
  17 +            fi
  18 +            rm -f $1 $1.o
  19 +            AC_MSG_RESULT($CompileNASM_ret)
  20 +            test "$CompileNASM_ret" = "yes"
  21 +        }
  22 +
  23 +        if test x"$NASMFLAGS" = x; then
  24 +            case $ARCH in
  25 +              win32)
  26 +                  NASMFLAGS="-f win32"
  27 +                  ;;
  28 +              openbsd)
  29 +                  NASMFLAGS="-f aoutb"
  30 +                  ;;
  31 +              macosx)
  32 +                  NASMFLAGS="-f macho"
  33 +                  ;;
  34 +              *)
  35 +                  NASMFLAGS="-f elf"
  36 +                  ;;
  37 +            esac
  38 +        fi
  39 +
  40          AC_PATH_PROG(NASM, yasm)
  41 +        echo "%ifidn __OUTPUT_FORMAT__,elf" > unquoted-sections
  42 +        echo "section .note.GNU-stack noalloc noexec nowrite progbits" >> unquoted-sections
  43 +        echo "%endif" >> unquoted-sections
  44 +        CompileNASM unquoted-sections || NASM=""
  45 +
  46          if test "x$NASM" = x -o "x$NASM" = x'"$NASM"'; then
  47 +            $as_unset ac_cv_path_NASM
  48              AC_PATH_PROG(NASM, nasm)
  49          fi
  50          if test "x$NASM" != x -a "x$NASM" != x'"$NASM"'; then
  51              AC_DEFINE(SDL_HERMES_BLITTERS)
  52              SOURCES="$SOURCES $srcdir/src/hermes/*.asm"
  53 -            if test x"$NASMFLAGS" = x; then
  54 -                case $ARCH in
  55 -                  win32)
  56 -                      NASMFLAGS="-f win32"
  57 -                      ;;
  58 -                  openbsd)
  59 -                      NASMFLAGS="-f aoutb"
  60 -                      ;;
  61 -                  macosx)
  62 -                      NASMFLAGS="-f macho"
  63 -                      ;;
  64 -                  *)
  65 -                      NASMFLAGS="-f elf"
  66 -                      ;;
  67 -                esac
  68 -            fi
  69              NASMFLAGS="$NASMFLAGS -i $srcdir/src/hermes/"
  70
  71              dnl See if hidden visibility is supported
  72 -            echo "GLOBAL _bar:function hidden" > nasm_vis.asm
  73 -            echo "_bar:" >>nasm_vis.asm
  74 -            if $NASM $NASMFLAGS nasm_vis.asm -o nasm_vis.o >&AS_MESSAGE_LOG_FD 2>&1; then
  75 -                NASMFLAGS="$NASMFLAGS -DHIDDEN_VISIBILITY"
  76 -            fi
  77 -            rm -f nasm_vis.asm nasm_vis.o
  78 +            echo "GLOBAL _bar:function hidden" > symbol-visibility
  79 +            echo "_bar:" >> symbol-visibility
  80 +            CompileNASM symbol-visibility && NASMFLAGS="$NASMFLAGS -DHIDDEN_VISIBILITY"
  81
  82              AC_SUBST(NASM)
  83              AC_SUBST(NASMFLAGS)