annotate test/gcc-fat.sh @ 4157:baf615f9f2a0 SDL-1.2

Date: Thu, 16 Oct 2008 20:27:34 +0400 From: "Ilya Kasnacheev" <ilya.kasnacheev@gmail.com> To: sdl@lists.libsdl.org Subject: [SDL] SDL for Windows CE: a few GAPI patches Hi *! I've just ported a POWDER roguelike ( http://www.zincland.com/powder/ ) to Windows CE (PDAs, Windows Mobile/Pocket PC). To do that, I had to get libsdl working. Thanks for the awesome project files, it built without a hitch. Nevertheless, I've found quite a few bugs in Windows CE (GAPI) SDL implementation, which I've solved and now present as a serie of patches. I'll try carefully annotate them. Please annotate them so I can work toward accepting them into the main source tree since without them SDL isn't really working on Windows CE (I wonder why nobody fixed them before, btw: why isn't SDL popular as a way to develop Windows CE games? Where are no ports?) These changes can't be considered flawless, but they can be considered working because I've yet to hear complains about things I fixed and POWDER build for Windows CE is now considered stable. Note: my comments start with !!, delete them before applying. diff -bru SDL-1.2.13/src/video/gapi/SDL_gapivideo.c SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.c --- SDL-1.2.13/src/video/gapi/SDL_gapivideo.c 2007-12-31 07:48:00.000000000 +0300 +++ SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.c 2008-10-16 20:02:11.000000000 +0400 @@ -643,6 +643,7 @@ } gapi->userOrientation = SDL_ORIENTATION_UP; + gapi->systemOrientation = SDL_ORIENTATION_UP; video->flags = SDL_FULLSCREEN; /* Clear flags, GAPI supports fullscreen only */ /* GAPI or VGA? */ @@ -661,18 +662,21 @@ } /* detect user landscape mode */ - if( (width > height) && (GetSystemMetrics(SM_CXSCREEN) < GetSystemMetrics(SM_CYSCREEN))) + if( (width > height) && (gapi->gxProperties.cxWidth < gapi->gxProperties.cyHeight)) gapi->userOrientation = SDL_ORIENTATION_RIGHT; + if(GetSystemMetrics(SM_CYSCREEN) < GetSystemMetrics(SM_CXSCREEN)) + gapi->systemOrientation = SDL_ORIENTATION_RIGHT; + /* shall we apply hires fix? for example when we do not use hires resource */ gapi->hiresFix = 0; - if( gapi->userOrientation == SDL_ORIENTATION_RIGHT ) + if( gapi->systemOrientation == gapi->userOrientation ) { - if( (width > GetSystemMetrics(SM_CYSCREEN)) || (height > GetSystemMetrics(SM_CXSCREEN))) + if( (width > GetSystemMetrics(SM_CXSCREEN)) || (height > GetSystemMetrics(SM_CYSCREEN))) gapi->hiresFix = 1; } else - if( (width > GetSystemMetrics(SM_CXSCREEN)) || (height > GetSystemMetrics(SM_CYSCREEN))) - if( !((width == GetSystemMetrics(SM_CYSCREEN)) && (height == GetSystemMetrics(SM_CXSCREEN)))) // user portrait, device landscape + if( (width > GetSystemMetrics(SM_CYSCREEN)) || (height > GetSystemMetrics(SM_CXSCREEN))) +// if( !((width == gapi->gxProperties.cyHeight) && (height == gapi->gxProperties.cxWidth))) // user portrait, device landscape gapi->hiresFix = 1; switch( gapi->userOrientation ) !! It used to query system metrics which return dimensions according to screen !! orientation, which can really be portrait, left landscape or right landscape. !! This is presumably incorrect because we couldn't care less about user mode !! dimensions - all we want are the GAPI framebuffer dimensions, which only match !! user dimensions in one of possible orientations. !! There's a fair dose of cargo cult programming involved in this fix, but it !! used to work only in one orientation (portrait for PDAs, where frame-buffer !! have same orientation as user screen), and now it works on all orientations. @@ -742,21 +746,30 @@ WIN_FlushMessageQueue(); /* Open GAPI display */ - if( !gapi->useVga && this->hidden->useGXOpenDisplay ) + if( !gapi->useVga && this->hidden->useGXOpenDisplay && !this->hidden->alreadyGXOpened ) + { + this->hidden->alreadyGXOpened = 1; if( !gapi->gxFunc.GXOpenDisplay(SDL_Window, GX_FULLSCREEN) ) { SDL_SetError("Couldn't initialize GAPI"); return(NULL); } + } #if REPORT_VIDEO_INFO printf("Video properties:\n"); printf("display bpp: %d\n", gapi->gxProperties.cBPP); printf("display width: %d\n", gapi->gxProperties.cxWidth); printf("display height: %d\n", gapi->gxProperties.cyHeight); + printf("system display width: %d\n", GetSystemMetrics(SM_CXSCREEN)); + printf("system display height: %d\n", GetSystemMetrics(SM_CYSCREEN)); printf("x pitch: %d\n", gapi->gxProperties.cbxPitch); printf("y pitch: %d\n", gapi->gxProperties.cbyPitch); printf("gapi flags: 0x%x\n", gapi->gxProperties.ffFormat); + printf("user orientation: %d\n", gapi->userOrientation); + printf("system orientation: %d\n", gapi->userOrientation); + printf("gapi orientation: %d\n", gapi->gapiOrientation); + if( !gapi->useVga && this->hidden->useGXOpenDisplay && gapi->needUpdate) { !! Previous version used to call gapi->gxFunc.GXOpenDisplay each time the video !! mode would be changed. You shouldn't, because this call has a meaning "Lock the !! GAPI framebuffer, designate it as busy", so the second call will fail (it is !! already locked/busy). !! Testing might not find that because most programs set up the video mode only !! once, but POWDER does this once in a while, so it crashed when in 320x240 mode !! (640x480 mode doesn't use that code, it worked fine). diff -bru SDL-1.2.13/src/video/gapi/SDL_gapivideo.h SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.h --- SDL-1.2.13/src/video/gapi/SDL_gapivideo.h 2007-12-31 07:48:00.000000000 +0300 +++ SDL-1.2.13-new/src/video/gapi/SDL_gapivideo.h 2008-10-16 20:02:11.000000000 +0400 @@ -132,12 +132,17 @@ #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */ int SDL_nummodes[NUM_MODELISTS]; SDL_Rect **SDL_modelist[NUM_MODELISTS]; + // The orientation of the video mode user wants to get + // Probably restricted to UP and RIGHT enum SDL_ScreenOrientation userOrientation; int invert; char hiresFix; // using hires mode without defining hires resource // -------------- int useGXOpenDisplay; /* use GXOpenDispplay */ + int alreadyGXOpened; int w, h; + // The orientation of GAPI framebuffer. + // Never changes on the same device. enum SDL_ScreenOrientation gapiOrientation; void *buffer; // may be 8, 16, 24, 32 bpp @@ -153,6 +158,10 @@ int startOffset; // in bytes int useVga; int suspended; // do not pu anything into video memory + // The orientation of the system, as defined by SM_CXSCREEN and SM_CYSCREEN + // User can change it by using 'screen layout' in system options + // Restricted to UP or RIGHT + enum SDL_ScreenOrientation systemOrientation; }; !! This is a flag variable, see the previous comment !! And yet another orientation: now we have to keep three of them in mind. diff -bru SDL-1.2.13/src/video/wincommon/SDL_sysevents.c SDL-1.2.13-new/src/video/wincommon/SDL_sysevents.c --- SDL-1.2.13/src/video/wincommon/SDL_sysevents.c 2007-12-31 07:48:02.000000000 +0300 +++ SDL-1.2.13-new/src/video/wincommon/SDL_sysevents.c 2008-10-16 20:02:12.000000000 +0400 @@ -160,10 +160,22 @@ #endif */ } break; + // FIXME: Older version used just SDL_VideoSurface->(w, h) + // w and h are "clipped" while x and y are "raw", which caused + // x in former and y in latter case to be clipped in a wrong direction, + // thus offsetting the coordinate on 2 x clip pixels + // (like, 128 for 640 -> 512 clipping). + // We will now try to extract and use raw values. + // The way to do that RIGHT is do (orientation-dependent) clipping before + // doing this transform, but it's hardly possible. + + // SEE SDL_mouse.c /ClipOffset to understand these calculations. case SDL_ORIENTATION_RIGHT: if (!SDL_VideoSurface) break; - rotatedX = SDL_VideoSurface->w - *y; + rotatedX = (2 * ((SDL_VideoSurface->offset%SDL_VideoSurface->pitch)/ + SDL_VideoSurface->format->BytesPerPixel)) + + SDL_VideoSurface->w - *y; rotatedY = *x; *x = rotatedX; *y = rotatedY; @@ -172,7 +184,8 @@ if (!SDL_VideoSurface) break; rotatedX = *y; - rotatedY = SDL_VideoSurface->h - *x; + rotatedY = (2 * (SDL_VideoSurface->offset/SDL_VideoSurface->pitch)) + + SDL_VideoSurface->h - *x; *x = rotatedX; *y = rotatedY; break; !! That's the trickest part, hence the long comment. !! GAPI would really support only 320x240 or 640x480 mode, if application !! requested the different screen size (as POWDER did, wishing 256x192), then SDL !! is going to grab the first mode that fits the requested, and pad the screen !! with black bars (as they do with wide-screen films). !! It would also get, say, 240x320 mode, and to turn it into 256x192 it would !! need to rotate mouse clicks. !! It worked, but one bug slipped through: it would receive mouse clicks !! unpadded, then rotate them, and then pad the black bars. The problem is: rotate !! is done by GAPI driver while padding is done by SDL core. SDL core doesn't know !! anything about rotating, so it would pad one of dimensions incorrectly. I understand that some of my claims (or code) might seem unbacked, but you can always grab the POWDER binary, compile your own libsdl with one or more of those fixes turned off, and see how weird it would misbehave. I can even supply you with those custom builds of libsdl if you don't want to set up the build environment for windows ce, you'll just need a PDA or a smartphone with it. I plan to take care of SDL on Windows CE as long as I maintain the POWDER port. POWDER is good for that because it: Employs both padded (with centered image, black bars) and unpadded (image occupies full screen) graphics; initializes video more than once; uses both 320x240 and 640x480 video; uses both stylus and buttons. There's still a list of unresolved issues which I'm planning to fix: 1) Arrow buttons on PDA return weird scancodes compared to PC, this caused the game to misbehave before I've fixed that. You can see it on those diagrams: http://wrar.name/upload/powder-htc.png http://wrar.name/upload/powder-pda.png 2) SDL (or underlying windows) doesn't care to rotate arrow presses when we're in a low-res GAPI mode, but it will rotate them in VGA mode (because of different screen orientations, the same arrow buttons can suddently mean different directions). Solution: we should stick to GAPI user orientation (the orientation the program supposedly wants) and rotate the keys on our own. _______________________________________________ SDL mailing list SDL@lists.libsdl.org http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org
author Sam Lantinga <slouken@libsdl.org>
date Fri, 07 Nov 2008 04:15:36 +0000
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1 #!/bin/sh
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2 #
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3 # Build Universal binaries on Mac OS X, thanks Ryan!
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4 #
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5 # Usage: ./configure CC="sh gcc-fat.sh" && make && rm -rf ppc x86
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7 # Locate Xcode SDK path
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8 SDK_PATH=/Developer/SDKs
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9 if [ ! -d $SDK_PATH ]; then
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10 echo "Couldn't find SDK path"
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11 exit 1
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12 fi
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13
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14 if [ -d "$SDK_PATH/MacOSX10.2.8.sdk" ]; then
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15 # PowerPC compiler flags (10.2 runtime compatibility)
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16 GCC_COMPILE_PPC="gcc-3.3 -arch ppc \
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17 -DMAC_OS_X_VERSION_MIN_REQUIRED=1020 \
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18 -nostdinc \
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19 -F$SDK_PATH/MacOSX10.2.8.sdk/System/Library/Frameworks \
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20 -I$SDK_PATH/MacOSX10.2.8.sdk/usr/include/gcc/darwin/3.3 \
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21 -isystem $SDK_PATH/MacOSX10.2.8.sdk/usr/include"
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22
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23 GCC_LINK_PPC="\
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24 -L$SDK_PATH/MacOSX10.2.8.sdk/usr/lib/gcc/darwin/3.3 \
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25 -F$SDK_PATH/MacOSX10.2.8.sdk/System/Library/Frameworks \
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26 -Wl,-syslibroot,$SDK_PATH/MacOSX10.2.8.sdk"
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27
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28 else # 10.2 or 10.3 SDK
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29 # PowerPC compiler flags (10.3 runtime compatibility)
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30 GCC_COMPILE_PPC="gcc-4.0 -arch ppc -mmacosx-version-min=10.3 \
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31 -DMAC_OS_X_VERSION_MIN_REQUIRED=1030 \
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32 -nostdinc \
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33 -F$SDK_PATH/MacOSX10.3.9.sdk/System/Library/Frameworks \
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34 -I$SDK_PATH/MacOSX10.3.9.sdk/usr/lib/gcc/powerpc-apple-darwin9/4.0.1/include \
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35 -isystem $SDK_PATH/MacOSX10.3.9.sdk/usr/include"
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36
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37 GCC_LINK_PPC="\
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38 -L$SDK_PATH/MacOSX10.3.9.sdk/usr/lib/gcc/powerpc-apple-darwin9/4.0.1 \
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39 -F$SDK_PATH/MacOSX10.3.9.sdk/System/Library/Frameworks \
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40 -Wl,-syslibroot,$SDK_PATH/MacOSX10.3.9.sdk"
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41
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42 fi # 10.2 or 10.3 SDK
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43
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44 # Intel compiler flags (10.4 runtime compatibility)
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45 GCC_COMPILE_X86="gcc-4.0 -arch i386 -mmacosx-version-min=10.4 \
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46 -DMAC_OS_X_VERSION_MIN_REQUIRED=1040 \
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47 -nostdinc \
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48 -F$SDK_PATH/MacOSX10.4u.sdk/System/Library/Frameworks \
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49 -I$SDK_PATH/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin9/4.0.1/include \
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50 -isystem $SDK_PATH/MacOSX10.4u.sdk/usr/include"
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51
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52 GCC_LINK_X86="\
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53 -L$SDK_PATH/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin9/4.0.1 \
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54 -Wl,-syslibroot,$SDK_PATH/MacOSX10.4u.sdk"
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55
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56 # Output both PowerPC and Intel object files
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57 args="$*"
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58 compile=yes
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59 link=yes
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60 while test x$1 != x; do
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61 case $1 in
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62 --version) exec gcc $1;;
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63 -v) exec gcc $1;;
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64 -V) exec gcc $1;;
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65 -print-prog-name=*) exec gcc $1;;
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66 -print-search-dirs) exec gcc $1;;
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67 -E) GCC_COMPILE_PPC="$GCC_COMPILE_PPC -E"
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68 GCC_COMPILE_X86="$GCC_COMPILE_X86 -E"
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69 compile=no; link=no;;
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70 -c) link=no;;
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71 -o) output=$2;;
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72 *.c|*.cc|*.cpp|*.S) source=$1;;
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73 esac
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74 shift
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75 done
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76 if test x$link = xyes; then
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77 GCC_COMPILE_PPC="$GCC_COMPILE_PPC $GCC_LINK_PPC"
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78 GCC_COMPILE_X86="$GCC_COMPILE_X86 $GCC_LINK_X86"
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79 fi
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80 if test x"$output" = x; then
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81 if test x$link = xyes; then
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82 output=a.out
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83 elif test x$compile = xyes; then
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84 output=`echo $source | sed -e 's|.*/||' -e 's|\(.*\)\.[^\.]*|\1|'`.o
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85 fi
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86 fi
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87
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88 if test x"$output" != x; then
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89 dir=ppc/`dirname $output`
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90 if test -d $dir; then
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91 :
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92 else
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93 mkdir -p $dir
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94 fi
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95 fi
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96 set -- $args
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97 while test x$1 != x; do
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98 if test -f "ppc/$1" && test "$1" != "$output"; then
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99 ppc_args="$ppc_args ppc/$1"
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100 else
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101 ppc_args="$ppc_args $1"
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102 fi
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103 shift
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104 done
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105 $GCC_COMPILE_PPC $ppc_args || exit $?
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106 if test x"$output" != x; then
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107 cp $output ppc/$output
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108 fi
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109
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110 if test x"$output" != x; then
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111 dir=x86/`dirname $output`
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112 if test -d $dir; then
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113 :
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114 else
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115 mkdir -p $dir
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116 fi
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117 fi
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118 set -- $args
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119 while test x$1 != x; do
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120 if test -f "x86/$1" && test "$1" != "$output"; then
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121 x86_args="$x86_args x86/$1"
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122 else
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123 x86_args="$x86_args $1"
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124 fi
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125 shift
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126 done
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127 $GCC_COMPILE_X86 $x86_args || exit $?
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128 if test x"$output" != x; then
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129 cp $output x86/$output
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130 fi
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131
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132 if test x"$output" != x; then
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133 lipo -create -o $output ppc/$output x86/$output
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134 fi