커스텀 eglibc 를 사용하도록 하려면?

TARGET = test-codes-1
OBJ = $(TARGET).o
SRC = $(TARGET).c
CC = gcc
CFLAGS = -g
LDFLAGS = -nostdlib -nostartfiles -static
GLIBCDIR = /temp/myusr/lib
STARTFILES = $(GLIBCDIR)/crt1.o $(GLIBCDIR)/crti.o `gcc --print-file-name=crtbegin.o`
ENDFILES = `gcc --print-file-name=crtend.o` $(GLIBCDIR)/crtn.o
LIBGROUP = -Wl,--start-group $(GLIBCDIR)/libc.a $(GLIBCDIR)/libresolv.a -lgcc -lgcc_eh -Wl,--end-group -Wl,--verbose -Wl,--dynamic-linker=$(GLIBCDIR)/libresolv-2.15.so -Wl,-rpath=$(GLIBCDIR) -Wl,-Map,test.map
#LIBGROUP = -Wl,--start-group $(GLIBCDIR)/libc.a $(GLIBCDIR)/libresolv.a -lgcc -lgcc_eh -Wl,--end-group 
$(TARGET): $(OBJ)
        $(CC) $(LDFLAGS) -o $@ $(STARTFILES) $^ $(LIBGROUP) $(ENDFILES) 
 
$(OBJ): $(SRC)
        $(CC) $(CFLAGS) -c $^
 
clean:
        rm -f *.o *.~ $(TARGET) test.map

#include "/temp/myusr/include/stdio.h"
#include "/temp/myusr/include/sys/socket.h"
#include "/Storage/jkim_temp/myusr/include/netinet/in.h"
... (생략) ....
#include "/temp/myusr/include/netdb.h"
 
main(argc, argv) 
int argc; char **argv;
{
        char hostname[100];
        struct hostent *hp;
        strcpy(hostname, "google.com");
        hp = gethostbyname(hostname)
        testfunc();
}