IN=$1
OUT=$2

# Make Mac OS X's tr and sed not complain that the files are not UTF-8
export LANG=en

for file in $(cd $IN; ls *.h); do
	# Filter by file names.
	# Some CIncludes packages include the MPW standard library.
	# Header files from that standard library would overwrite
	# newlib header files and stop things from working.
	case $file in
			# Apple/MPW standard library internals
		*Def.h|FSpio.h)
			USE=false
			;;

			# whitelist all uppercase headers
		[A-Z]*.h)
			USE=true
			;;

			# whitelist OpenTransport
		cred.h|dlpi.h|miioccom.h|mistream.h|modnames.h)
			USE=true
			;;
			# whitelist OpenTransport (continued)
		strlog.h|stropts.h|strstat.h|tihdr.h)
			USE=true
			;;

			# Non-standard floating point headers that don't conflict
		ddrt.h|fp.h)
			USE=true
			;;
			# newlib does not provide fenv.h, so use Apple's
		fenv.h)
			USE=true
			;;

			# veclib headers
		v*.h)
			USE=true
			;;

		# unsupported:	intrinsics.h   perf.h

		# all other (lowercase) headers: conflict with GCC or newlib headers
		*)
			USE=false
			;;
	esac

	if [ $USE = true ]; then
		sed 's/\r$//' < $IN/$file | tr '\r' '\n' > $OUT/$file
	fi
done

############################# ConditionalMacros.h #############################
cat > $OUT/ConditionalMacros.h <<END_MARKER

#ifndef __CONDITIONALMACROS__WRAP__
#define __CONDITIONALMACROS__WRAP__

#if #cpu(powerpc)
#define TARGET_CPU_PPC 1
#define TARGET_OS_MAC 1
#define TARGET_RT_MAC_CFM 1
#define TARGET_RT_MAC_MACHO 0
#else
#define TARGET_CPU_68K 1
#define TARGET_OS_MAC 1
#define TARGET_RT_MAC_CFM 0
#define TARGET_RT_MAC_MACHO 0
#endif

#define PRAGMA_STRUCT_PACKPUSH 1
#define FUNCTION_PASCAL 1
#define TYPE_LONGLONG 1
#ifdef __cplusplus
#define TYPE_BOOL 1
#endif

#define __DEBUGGING__  /* HACK: Disable Debugging.h because its vdprintf conflicts with stdio.h */
END_MARKER

sed 's/\r$//' < $IN/ConditionalMacros.h | tr '\r' '\n' | sed 's/__GNUC__/__GNUC_DISABLED__/g' >> $OUT/ConditionalMacros.h

cat >> $OUT/ConditionalMacros.h <<END_MARKER


#endif /* __CONDITIONALMACROS__WRAP__ */
END_MARKER

############################# fp.h #############################
if [ -r $IN/fp.h ]; then

cat > $OUT/fp.h <<END_MARKER

#ifndef __FP__WRAP__
#define __FP__WRAP__

#include "math.h"

#pragma push_macro("__MWERKS__")
#define __MWERKS__ 0x6666
#define __cmath__

short relation(double x, double y);

END_MARKER

sed 's/\r$//' < $IN/fp.h | tr '\r' '\n' >> $OUT/fp.h

cat >> $OUT/fp.h <<END_MARKER

#pragma pop_macro("__MWERKS__")
#undef __cmath__

#endif /* __FP__WRAP__ */
END_MARKER

fi

############################# MixedMode.h #############################
sed 's/\r$//' < $IN/MixedMode.h | tr '\r' '\n' | sed 's/Opaque\#\#name\#\#\*/Opaque\#\#name \*/g' > $OUT/MixedMode.h

############################# CGBase.h #############################
if [ -r $IN/CGBase.h ]; then
cat > $OUT/CGBase.h <<END_MARKER

#ifndef __CGBASE__WRAP__
#define __CGBASE__WRAP__

#include <math.h>
#include <sys/types.h>

/* CGBase contains a hardcoded #ifdef that decides that stdint.h is available in MWERKS > 0x2300.
   ... otherwise, it contains an incompatible redefinition. */
#pragma push_macro("__MWERKS__")
#define __MWERKS__ 0x6666

#define u_int32_t __cgbase_incompatible_u_int32_t

END_MARKER

sed 's/\r$//' < $IN/CGBase.h | tr '\r' '\n' >> $OUT/CGBase.h

cat >> $OUT/CGBase.h <<END_MARKER

#undef u_int32_t __cgbase_incompatible_u_int32_t

#pragma pop_macro("__MWERKS__")

#endif /* __CGBASE__WRAP__ */
END_MARKER

fi

for f in Types.h Memory.h Windows.h Errors.h; do
	if [ ! -r $IN/$f ]; then
		echo "#include \"Mac$f\"" > $OUT/$f
	elif [ ! -r $IN/Mac$f ]; then
		echo "#include \"$f\"" > $OUT/Mac$f
	fi
done

if [ -d $IN/CoreFoundation ]; then
	mkdir -p $OUT/CoreFoundation
	for file in $(cd $IN; ls CoreFoundation/*.h); do
		sed 's/\r$//' < $IN/$file | tr '\r' '\n' > $OUT/$file
	done
fi