#!/bin/bash
echo "Mercury mini-configurator (C) 2007 Charles Lohr under the MIT/x11 License"

if source ./base_set.sh $*; then
	echo "Source Base Set Ok."
else
	exit -1
fi

CheckForInclude( )
{
echo -n "Checking for <$1>... "
echo -e "#include <$1>\n" > tmp.c
#echo ${CC} $CC_BASE -E tmp.c
if $CC $CC_BASE -E tmp.c 1> foo 2> foo; then
#	rm ./tmp.c
	rm ./foo
	echo "yes"
	return 0
else
#	rm ./tmp.c
	rm ./foo
	echo "no"
	return -1
fi
}

CheckForLib()
{
echo -n "Checking for -l$1... "
echo -e "int main() { return 0; }" > tmp.c
#echo $CC $CC_BASE $LD_BASE -o bar tmp.c -l$1
if $CC $CC_BASE $LD_BASE -o bar tmp.c -l$1 1> foo 2> foo; then
	rm ./tmp.c
	rm ./foo
	rm ./bar
	echo "yes"
	return 0
else
	rm ./tmp.c
	rm ./foo
	echo "no"
	return -1
fi 
}

#display to user what options are on and off
for i in $OPTIONS; do
	echo "Feature: $i $(eval echo \$$(eval 'echo OPT_$i'))"
done

#Make the configuration.h
echo "#ifndef _CONFIGURATION_H" > configuration.h
echo "#define _CONFIGURATION_H" >> configuration.h
echo "" >> configuration.h

for i in $DEFINES; do
	echo "#define $i" >> configuration.h
done

echo "Compile line used: $CC $CC_BASE"

echo -n "Checking to make sure standard cflags and compile are acceptable... "
echo -e "\n" > tmp.c
if $CC $CC_BASE -E tmp.c 1> foo 2> foo; then
        rm ./foo
        echo "yes"
else
        rm ./foo
        echo "no"
	exit -1
fi

echo "Link line used: $CC $CC_BASE $LD_BASE"
echo -n "Checking to make sure ldflags and cflags are acceptable... "
echo -e "int main() { return 0; }" > tmp.c
if $CC $CC_BASE $LD_BASE -o bar tmp.c  1> foo 2> foo; then
        rm ./tmp.c
        rm ./foo
        rm ./bar
        echo "yes"
else
        rm ./tmp.c
        rm ./foo
        echo "no"
	exit -1;
fi


for i in $NEED_H; do
	if CheckForInclude "$i"; then echo "#define _HAVE_$i" | sed "s/\./_/;s/\//_/g" >> configuration.h; else echo "Configure failed."; exit -1; fi
done

for i in $WANT_H; do
	if CheckForInclude "$i"; then echo "#define _HAVE_$i" | sed "s/\./_/g;s/\//_/g" >> configuration.h; fi
done

for i in $NEED_L; do
	if CheckForLib "$i"; then echo "#define _HAVE_LIB_$i" >> configuration.h; else echo "Configure Failed"; exit -1; fi
done

for i in $WANT_L; do
	if CheckForLib "$i"; then echo "#define _HAVE_LIB_$i" >> configuration.h; LDFLAGS="$LDFLAGS -l$i"; fi
done


echo -n "Compiling the environment setting program... "

echo -e "#include <stdio.h>
	int main() 
	{
		int i = 0x04010203;
		unsigned char * g = (unsigned char*)&i;
		if( g[0] == 3 ) 
			printf( \"#define M_LITTLE_ENDIAN\\\\n\" );  
		else if( g[0] == 4 ) 
			printf( \"#define M_BIG_ENDIAN\\\\n\" ); 
		else { 
			fprintf( stderr, \"ENDIAN COULD NOT BE FOUND\\\n\" );
			return -1;
		}

		if( sizeof( void * ) == 4 )
			printf( \"#define WORDSIZE 32\\\\n\" );
		else if (sizeof( void * ) == 8 )
			printf( \"#define WORDSIZE 64\\\\n\" );

		return 0;
	}\n" > tmp.c

if cc -o tmp.o tmp.c; then
	echo -n "Compile OK. "
	rm ./tmp.c
else
	echo "Compile FAIL."
	exit -1
fi

if ./tmp.o >> configuration.h; then
	echo -n "Run OK."
	rm ./tmp.o -f
else
	echo "Run FAIL."
	exit -1
fi

echo "" >> configuration.h
echo "#endif" >> configuration.h

echo ""
echo -n "Preprocessing adv_set.c... "

if cc adv_set.c -E > make_adv.sh; then
	echo "OK"
else
	echo "Failed to create makefile."
	exit -1
fi

echo -n "Sourcing make_base.sh... "
if source make_adv.sh; then
	echo "Ok."
	rm -f make_adv.sh
else
	echo "Fail."
	exit -1;
fi

#Make the Makefile

echo "" > Makefile

#if we need extra beginning parameters, tack them in here
echo $EXTRA_BEGIN >> Makefile

echo -n "SOURCES=" >> Makefile
for i in $SOURCES; do
	echo -n "$i " >> Makefile
done
echo "" >> Makefile
echo "OBJ=$SOURCES" | sed "s/\.S/\.o/g;s/\.cpp/\.o/g;s/\.c/\.o/g" >> Makefile
echo "">>Makefile

for i in $NEED_L; do
	LDFLAGS="$LDFLAGS -l$i"
done

LDFLAGS="$LDFLAGS $LD_BASE"

echo "Final compile line: ${CC} ${CC_BASE} ${CFLAGS} -c -o \$@ \$<"
echo "Final link line: g++ -o \$@ \$^ ${LDFLAGS}"

echo "PROJ=$PROJ" >> Makefile
echo "CC=$CC" >> Makefile
echo "CFLAGS=$CC_BASE $CFLAGS" >> Makefile
echo "LDFLAGS=$LDFLAGS" >> Makefile
echo "">>Makefile
echo -e "all : \$(PROJ) library" >> Makefile
echo -e "\$(PROJ) : \$(OBJ)" >> Makefile
echo -e "\t${CC} -pg -o \$@ \$^ \$(LDFLAGS)" >> Makefile
echo -e "help : " >> Makefile
echo -e "	echo \"Available: <\$(PROJ)> <clean> <library> <help>\"" >> Makefile
if test `uname -s` == "Darwin" ; then
	echo -e "library : \$(PROJ).dylib" >> Makefile
	echo -e "\$(PROJ).dylib : \$(OBJ)" >> Makefile
	echo -e "\tg++ -dynamiclib -o \$(PROJ).dylib \$^ \$(LDFLAGS)" >> Makefile
else
	echo -e "library : \$(PROJ).so" >> Makefile
	echo -e "\$(PROJ).so : \$(OBJ)" >> Makefile
	echo -e "\tg++ -pg -shared -o \$(PROJ).so \$^ \$(LDFLAGS)" >> Makefile
fi
echo "" >> Makefile
for i in $SOURCES; do
	echo "Processing: $i"
	${CC} $CC_BASE $CFLAGS -MM "$i" -MT $( echo "$i" | sed "s/\.S/\.o/g;s/\.cpp/\.o/g;s/\.c/\.o/g" ) >> Makefile
#FIX THIS!!!! It should be don at make time, not here.
	echo -e "\t\$(CC) \$(CC_BASE) \$(CFLAGS) -c -o \$@ \$<" >> Makefile
	echo "" >> Makefile
#	echo -e "\t@echo -ne \"  \" \$(CC) \"  \$< ... \\r\\033[30a\"" >> Makefile
#	echo -e "\t@if \$(CC) \$(CFLAGS) -c -o \$@ \$<; then echo -e \"[\$\\\\\\\\033[32mOK\\\\\\\\033[0m]\"; else echo -e \"[\\\\\\\\033[31mFAIL\\\\\\\\033[0m]\"; fi" >> Makefile
done

echo "clean:" >> Makefile
echo -ne "\trm -f " >> Makefile
for i in $FOLDERS; do
	echo -ne "$i/*.o $i/*~ $i/core.* " >>Makefile
done
echo "\$(PROJ) \$(PROJ).so *.o" >> Makefile