problem with building jdk7--"cannot find -ljvm"

[Feng Xian]

Hi,
 I downloaded openjdk today and modified some source files in hotspot.
 I made a building script but the build failed after executing the script.
The error message is shown below

==============================
....................
            echo Linking launcher...; \
             \
            gcc -m32 -march=i586 -Xlinker -O1 -m32 -march=i586
-export-dynamic  -L `pwd` -o gamma launcher.o -ljvm -lm -ldl -lpthread; \
             \
        }

Linking launcher...
/usr/bin/ld: cannot find -ljvm     <-----ERROR
================================

The build script is below. I dont know why libjvm.so couldn't be found ( the
library still couldn't be found even I set LD_LIBRARY_PATH). Could someone
help me out on this? Thanks!

===================================
#!/bin/bash

unset JAVA_HOME CLASSPATH LD_LIBRARY_PATH

export ALT_DEVTOOLS_PATH="/usr/bin"
export ALT_BOOTDIR="/home/fxian/jdk1.6.0_03"
export ALT_BINARY_PLUGS_PATH="/home/fxian/openjdk"
export ALT_JDK_IMPORT_PATH="/home/fxian/jdk1.6.0_03"
export ALT_MOZILLA_HEADERS_PATH="/home/fxian/openjdk/share/plugin"
export MILESTONE="TerryJDK7"
export DEV_ONLY=true
export INSANE=true
export MAKE_VERBOSE=true
export BUILD_LANGTOOLS=false
export DEBUG_GDB3=true
export ARCH_DATA_MODEL=32

make hotspot
======================================

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