diff --git a/polymer/eduke32/Makefile b/polymer/eduke32/Makefile
index 098d04ffb..989e2d10d 100644
--- a/polymer/eduke32/Makefile
+++ b/polymer/eduke32/Makefile
@@ -34,8 +34,7 @@ else
 endif
 
 OURCFLAGS=$(BASECFLAGS) \
-    -I$(INC) -I$(EINC) -I$(SRC)/jmact -I$(JAUDIOLIBDIR)/include -I$(ENETDIR)/include \
-    $(ARCH)
+    -I$(INC) -I$(EINC) -I$(SRC)/jmact -I$(JAUDIOLIBDIR)/include -I$(ENETDIR)/include
 
 OURCXXFLAGS=$(BASECXXFLAGS)
 NASMFLAGS=$(BASEASFLAGS)
@@ -62,7 +61,9 @@ else
         LIBS+= -pthread
     endif
     ifneq (0,$(PROFILER))
-        LIBS+= -lprofiler
+        ifneq ($(PLATFORM),DARWIN)
+            LIBS+= -lprofiler
+        endif
         debug+= -pg
     endif
     OBJ=obj
diff --git a/polymer/eduke32/Makefile.common b/polymer/eduke32/Makefile.common
index 3e871ae21..8297953cc 100644
--- a/polymer/eduke32/Makefile.common
+++ b/polymer/eduke32/Makefile.common
@@ -93,6 +93,7 @@ else
         debug+= -fmudflapth
     endif
     ifneq (0,$(PROFILER))
+        # might need to be disabled for Darwin:
         LIBS+= -lprofiler
         debug+= -pg
     endif
@@ -109,7 +110,7 @@ W_NO_UNUSED_RESULT := $(findstring -Wno-unused-result,$(W_NO_UNUSED_RESULT))
 
 BASECFLAGS=$(debug) -W -Wall -Wimplicit -Werror-implicit-function-declaration \
 	-funsigned-char -fno-strict-aliasing -DNO_GCC_BUILTINS -D_FORTIFY_SOURCE=2 \
-	$(F_JUMP_TABLES) $(W_NO_UNUSED_RESULT) \
+	$(F_JUMP_TABLES) $(W_NO_UNUSED_RESULT) $(ARCH) \
 	-Wextra	-Wstrict-overflow=1 #-Wwrite-strings -Waddress -Wlogical-op
 ifneq (0,$(USE_LIBPNG))
     BASECFLAGS+= -DUSE_LIBPNG
diff --git a/polymer/eduke32/build/Makefile b/polymer/eduke32/build/Makefile
index 6878097d2..dcda5c0b3 100644
--- a/polymer/eduke32/build/Makefile
+++ b/polymer/eduke32/build/Makefile
@@ -108,8 +108,10 @@ ifeq ($(PLATFORM),LINUX)
     ASFLAGS+= -f elf
 endif
 ifeq ($(PLATFORM),DARWIN)
-    ENGINEOBJS  += $(OBJ)/StartupWinController.editor.$o \
-            $(OBJ)//osxbits.$o
+    ifneq ($(findstring ppc,$(ARCH)),ppc)
+        ENGINEOBJS  += $(OBJ)/StartupWinController.editor.$o
+    endif
+    ENGINEOBJS += $(OBJ)/osxbits.$o
     ASFLAGS     += -DUNDERSCORES -f macho
     OURCFLAGS   += -DUNDERSCORES -fno-pic
     TARGETOPTS  += -DNOASM
diff --git a/polymer/eduke32/build/Makefile.shared b/polymer/eduke32/build/Makefile.shared
index 8a997b8cf..79cce7c73 100644
--- a/polymer/eduke32/build/Makefile.shared
+++ b/polymer/eduke32/build/Makefile.shared
@@ -101,6 +101,9 @@ ifeq ($(PLATFORM),DARWIN)
         BUILDCFLAGS += $(F_NO_STACK_PROTECTOR) -arch i386
     else
         # ASM won't work on PowerPC or x86_64
+        ifeq ($(findstring ppc,$(ARCH)),ppc)
+            BUILDCFLAGS += $(F_NO_STACK_PROTECTOR)
+        endif
         override NOASM    = 1
     endif
 endif
diff --git a/polymer/eduke32/build/include/compat.h b/polymer/eduke32/build/include/compat.h
index 434677550..2bc7c0a72 100644
--- a/polymer/eduke32/build/include/compat.h
+++ b/polymer/eduke32/build/include/compat.h
@@ -120,6 +120,9 @@ static inline float nearbyintf(float x)
 # define NULL ((void *)0)
 #endif
 
+// redefined for apple/ppc, which chokes on stderr when linking...
+#define ERRprintf(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__)
+
 #if defined(__linux)
 # include <endian.h>
 # if __BYTE_ORDER == __LITTLE_ENDIAN
@@ -145,12 +148,18 @@ static inline float nearbyintf(float x)
 # define B_SWAP16(x) __bswap16(x)
 
 #elif defined(__APPLE__)
-#if defined __i386__ && defined __GNUC__
-// PK 20110617: is*() crashes for me in x86 code compiled from 64-bit.
+#if !defined __x86_64__ && defined __GNUC__
+// PK 20110617: is*() crashes for me in x86 code compiled from 64-bit, and gives link errors on ppc
 //              This hack patches all occurences.
 #  define isdigit(ch) ({ int32_t c__dontuse_=ch; c__dontuse_>='0' && c__dontuse_<='9'; })
 #  define isalpha(ch) ({ int32_t c__dontuse2_=ch; (c__dontuse2_>='A' && c__dontuse2_<='Z') || (c__dontuse2_>='a' && c__dontuse2_<='z'); })
 #  define isalnum(ch2)  ({ int32_t c2__dontuse_=ch2; isalpha(c2__dontuse_) || isdigit(c2__dontuse_); })
+#  if defined __BIG_ENDIAN__
+#    define isspace(ch)  ({ int32_t c__dontuse_=ch; (c__dontuse_==' ' || c__dontuse_=='\t' || c__dontuse_=='\n' || c__dontuse_=='\v' || c__dontuse_=='\f' || c__dontuse_=='\r'); })
+#    define isprint(ch)  ({ int32_t c__dontuse_=ch; (c__dontuse_>=0x20 && c__dontuse_<0x7f); })
+#    undef ERRprintf
+#    define ERRprintf(fmt, ...) printf(fmt, ## __VA_ARGS__)
+#  endif
 # endif
 # if defined(__LITTLE_ENDIAN__)
 #  define B_LITTLE_ENDIAN 1
diff --git a/polymer/eduke32/build/src/engine.c b/polymer/eduke32/build/src/engine.c
index 4ffb18f96..14f7bf6b7 100644
--- a/polymer/eduke32/build/src/engine.c
+++ b/polymer/eduke32/build/src/engine.c
@@ -7459,7 +7459,7 @@ static void sighandler(int32_t sig, const siginfo_t *info, void *ctx)
             default:
                     s = "?! (unknown)"; break;
             }
-        fprintf(stderr, "Caught SIGFPE at address %p, code %s. Aborting.\n", info->si_addr, s);
+        ERRprintf("Caught SIGFPE at address %p, code %s. Aborting.\n", info->si_addr, s);
         break;
     default:
             break;
diff --git a/polymer/eduke32/build/src/sdlayer.c b/polymer/eduke32/build/src/sdlayer.c
index 2fa16092b..2dda88887 100644
--- a/polymer/eduke32/build/src/sdlayer.c
+++ b/polymer/eduke32/build/src/sdlayer.c
@@ -29,7 +29,9 @@
 # include "osxbits.h"
 #elif defined HAVE_GTK2
 # include "gtkbits.h"
-#else
+#endif
+
+#if (!defined __APPLE__ && !defined HAVE_GTK2) || (defined __APPLE__ && defined __BIG_ENDIAN__)
 int32_t startwin_open(void) { return 0; }
 int32_t startwin_close(void) { return 0; }
 int32_t startwin_puts(const char *s) { s=s; return 0; }
@@ -185,6 +187,7 @@ int32_t main(int32_t argc, char *argv[])
     _buildargc = argc;
     _buildargv = (const char **)argv;
 
+#if !(defined __APPLE__ && defined __BIG_ENDIAN__)
     // pipe standard outputs to files
     if ((argp = Bgetenv("BUILD_LOGSTDOUT")) != NULL)
         if (!Bstrcasecmp(argp, "TRUE"))
@@ -201,6 +204,7 @@ int32_t main(int32_t argc, char *argv[])
                 *stderr = *fp;
             }
         }
+#endif
 
 #ifdef USE_OPENGL
     if ((argp = Bgetenv("BUILD_NOFOG")) != NULL)
@@ -231,7 +235,7 @@ void setvsync(int32_t sync)
 static void attach_debugger_here(void) {}
 
 /* XXX: libexecinfo could be used on systems without gnu libc. */
-#if defined __GNUC__ && !defined __OpenBSD__
+#if defined __GNUC__ && !defined __OpenBSD__ && !(defined __APPLE__ && defined __BIG_ENDIAN__)
 # define PRINTSTACKONSEGV 1
 # include <execinfo.h>
 #endif
@@ -426,7 +430,7 @@ void initprintf(const char *f, ...)
 //
 void debugprintf(const char *f, ...)
 {
-#ifdef DEBUGGINGAIDS
+#if defined DEBUGGINGAIDS && !(defined __APPLE__ && defined __BIG_ENDIAN__)
     va_list va;
 
     va_start(va,f);
diff --git a/polymer/eduke32/osxbuild.sh b/polymer/eduke32/osxbuild.sh
index b322a6d94..569eb0c12 100755
--- a/polymer/eduke32/osxbuild.sh
+++ b/polymer/eduke32/osxbuild.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# build debug/release x86/x64 versions of mapster32 and eduke32 on OSX
+# build debug/release x86/x64/ppc versions of mapster32 and eduke32 on OSX
 
 if [ `uname -s` != Darwin ]; then
     echo This script is for OSX only.
@@ -19,15 +19,15 @@ if [ $1 ]; then
 fi
 
 if [ $onlyzip -eq 0 ]; then
-    make veryclean
-    WITHOUT_GTK=1 RELEASE=0 BUILD32_ON_64=0 make -j 3
-    if [ $? ]; then
-        echo 64-bit debug build succeeded.
-        cp mapster32 mapster32.debug.x64
-        cp eduke32 eduke32.debug.x64
-    else
-        echo 64-bit debug build failed.
-    fi
+    # make veryclean
+    # WITHOUT_GTK=1 RELEASE=0 BUILD32_ON_64=0 make -j 3
+    # if [ $? ]; then
+    #     echo 64-bit debug build succeeded.
+    #     cp mapster32 mapster32.debug.x64
+    #     cp eduke32 eduke32.debug.x64
+    # else
+    #     echo 64-bit debug build failed.
+    # fi
 
     make veryclean
     WITHOUT_GTK=1 RELEASE=1 BUILD32_ON_64=0 make -j 3
@@ -39,15 +39,15 @@ if [ $onlyzip -eq 0 ]; then
         echo 64-bit release build failed.
     fi
 
-    make veryclean
-    WITHOUT_GTK=1 RELEASE=0 BUILD32_ON_64=1 make -j 3
-    if [ $? ]; then
-        echo 32-bit debug build succeeded.
-        cp mapster32 mapster32.debug.x86
-        cp eduke32 eduke32.debug.x86
-    else
-        echo 32-bit debug build failed.
-    fi
+    # make veryclean
+    # WITHOUT_GTK=1 RELEASE=0 BUILD32_ON_64=1 make -j 3
+    # if [ $? ]; then
+    #     echo 32-bit debug build succeeded.
+    #     cp mapster32 mapster32.debug.x86
+    #     cp eduke32 eduke32.debug.x86
+    # else
+    #     echo 32-bit debug build failed.
+    # fi
 
     make veryclean
     WITHOUT_GTK=1 RELEASE=1 BUILD32_ON_64=1 make -j 3
@@ -58,18 +58,40 @@ if [ $onlyzip -eq 0 ]; then
     else
         echo 32-bit release build failed.
     fi
+
+    # make veryclean
+    # ARCH='-arch ppc' WITHOUT_GTK=1 RELEASE=0 BUILD32_ON_64=0 make -j 3
+    # if [ $? ]; then
+    #     echo PowerPC debug build succeeded.
+    #     cp mapster32 mapster32.debug.ppc
+    #     cp eduke32 eduke32.debug.ppc
+    # else
+    #     echo PowerPC debug build failed.
+    # fi
+
+    make veryclean
+    ARCH='-arch ppc' WITHOUT_GTK=1 RELEASE=1 BUILD32_ON_64=0 make -j 3
+    if [ $? ]; then
+        echo PowerPC release build succeeded.
+        cp mapster32 mapster32.ppc
+        cp eduke32 eduke32.ppc
+    else
+        echo PowerPC release build failed.
+    fi
 fi
 
 # Almost done...
-if [ -f mapster32.debug.x64 ] && [ -f mapster32.x64 ] && [ -f eduke32.debug.x86 ] && [ -f eduke32.x86 ]; then
+if [ -f mapster32.x64 ] && [ -f eduke32.x86 ] && [ -f eduke32.ppc ]; then
     echo Creating fat binaries.
-    lipo -create mapster32.x64 mapster32.x86 -output mapster32
-    lipo -create mapster32.debug.x64 mapster32.debug.x86 -output mapster32.debug
-    lipo -create eduke32.x64 eduke32.x86 -output eduke32
-    lipo -create eduke32.debug.x64 eduke32.debug.x86 -output eduke32.debug
+    lipo -create mapster32.x64 mapster32.x86 mapster32.ppc -output mapster32
+#    lipo -create mapster32.debug.x64 mapster32.debug.x86 -output mapster32.debug
+    lipo -create eduke32.x64 eduke32.x86 eduke32.ppc -output eduke32
+#    lipo -create eduke32.debug.x64 eduke32.debug.x86 -output eduke32.debug
     rev=`svn info | grep Revision | awk '{ print $2 }'`
     arfilename="eduke32-osx-$rev.zip"
     echo "This archive was produced from revision $rev by the osxbuild.sh script." > README.OSX
+    echo "EDuke32 home: http://www.eduke32.com" >> README.OSX
+    echo "OSX build discussion on Duke4.net: http://forums.duke4.net/topic/4242-building-eduke-on-mac-os-x/" >> README.OSX
     rm -f "$arfilename"
     zip "$arfilename" mapster32 eduke32 README.OSX
 fi
diff --git a/polymer/eduke32/source/game.c b/polymer/eduke32/source/game.c
index e8246de27..7a09b7f8c 100644
--- a/polymer/eduke32/source/game.c
+++ b/polymer/eduke32/source/game.c
@@ -9304,7 +9304,7 @@ static void G_Startup(void)
         wm_msgbox("Build Engine Initialization Error",
                   "There was a problem initializing the Build engine: %s", engineerrstr);
         G_Cleanup();
-        fprintf(stderr, "G_Startup: There was a problem initializing the Build engine: %s\n", engineerrstr);
+        ERRprintf("G_Startup: There was a problem initializing the Build engine: %s\n", engineerrstr);
         exit(6);
     }
 
@@ -9764,7 +9764,7 @@ int32_t app_main(int32_t argc,const char **argv)
     {
         wm_msgbox("Build Engine Initialization Error",
                   "There was a problem initializing the Build engine: %s", engineerrstr);
-        fprintf(stderr, "app_main: There was a problem initializing the Build engine: %s\n", engineerrstr);
+        ERRprintf("app_main: There was a problem initializing the Build engine: %s\n", engineerrstr);
         exit(2);
     }
 
@@ -10125,7 +10125,7 @@ CLEAN_DIRECTORY:
     {
         if (CONTROL_Startup(1, &GetTime, TICRATE))
         {
-            fprintf(stderr, "There was an error initializing the CONTROL system.\n");
+            ERRprintf("There was an error initializing the CONTROL system.\n");
             uninitengine();
             exit(5);
         }
diff --git a/polymer/eduke32/source/sdlmusic.c b/polymer/eduke32/source/sdlmusic.c
index aa3e44b5d..3d8f4c556 100644
--- a/polymer/eduke32/source/sdlmusic.c
+++ b/polymer/eduke32/source/sdlmusic.c
@@ -29,6 +29,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include <stdio.h>
 #include <errno.h>
 
+#if defined __APPLE__ && defined __BIG_ENDIAN__
+// is* hacks for ppc...
+# include "compat.h"
+#endif
+
 #include "duke3d.h"
 #include "cache1d.h"