--------------------------------
ECW SOURCE COMPILATION IN LINUX
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You have download ecw sdk source from http://www.ermapper.com
You have modify the makefile.inc file in the NCSNighttlyBuild directory
	GCC_LIB_PATH = write your gcc path
	NCSTOP = Path to the source

Compiling reading libraries
	Go to NCSCnet3 directory and do make
	Go to NCSEcw directory and do make
	Go to NCSUtil directory and do make

COMPILING JECW

Go to NCSEcw directory and edit makefile
You must add this lines to the end of makefile

jecw:	ecw_jni.o
	$(CXX) -g -shared -Wl,-soname,libjecw.so -o libjecw.so.0.0.0 ecw_jni.o -lc -Wall -lNCSEcw -lNCScnet -lNCSUtil -L../../../../bin/linux/
	mv ./libjecw.so.0.0.0 $(NCS_LIB_PATH)

ecw_jni.o:
	$(CXX) -c ./ecw_jni.c $(CFLAGS)

Execute make jecw

COMPILING COMPRESSOR

You'll have to create the makefile to compile the compressor  inside the NCSEcw/shared_src directory and put there your host specific includes

INCLUDE = -I../../../include -I/usr/local/include/g++-v3 -I/usr/local/j2sdk1.4.2_03/include/ -I/usr/local/j2sdk1.4.2_03/include/linux -I../lcms/include
DIR_LIBS = -L/usr/lib/gcc-lib/i486-linux/3.3.5 -L/usr/lib -L/usr/local/lib -L/home/flus/gdal/SourceC_ecw/bin/linux
LIBS = -lm -lc -lrt -ldl  -lstdc++ -lsupc++ -lgcc_s -lNCSCNet -lNCSEcw -lNCSUtil

all:
	gcc -O3 -c compress.cpp -Wall -Wno-long-long -fpic -DLINUX -DPOSIX $(INCLUDE) -D UNICODE -D ECW_COMPRESS -w
	gcc -shared -s -z defs $(DIR_LIBS) compress.o  /usr/lib/gcc-lib/i586-suse-linux/3.3.1/libgcc.a $(LIBS) -o ../../../../bin/linux/libNCSEcwC.so

install:
	cp ../../../../bin/linux/libNCSEcwC.so /lib

clean:
	rm compress.o
	rm ../../../../bin/linux/libNCSEcwC.so


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ECW SOURCE COMPILATION IN WINDOWS
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Ermapper includes support for the dll's compilation. 
There are some projects within the source files for Visual C for compile and link the libraries that come with the sdk
You must create a makefile.w32 file inside the NCSEcw directory in order to generate jecw.dll with this content:


#*****************************************

LIBR = /LIBPATH:"C:\Archivos de programa\Microsoft Visual Studio .NET 2003\Vc7\lib" /LIBPATH:"C:\Archivos de programa\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\lib"
DSTNO_LIB = "C:\windows\system32"
LIB_EXTERNAS = ../../../../bin/NCSUtil.lib ../../../../bin/NCSEcw.lib ../../../../bin/NCSEcwC.lib

#Compilers and programs

CC = cl.exe
LINK = link.exe

OBJS = ecw_jni.obj
NOM_LIB = jecw
LIB = $(NOM_LIB).dll

#Directories

INCLUDE = -I./include -I"C:\Archivos de programa\Microsoft Visual Studio .NET 2003\Vc7\include" -I"C:\Archivos de programa\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include"
DEST_OBJS = ./bin
DISTRIBUCION = ./dist

#Files

FTE_HEADER_ECW = $(PAQUETE_ECW).JNCSFile

#Opciones

FLAGS = -c -W3 -G4 -D_X86_=1 -DDLL -DWIN32 -GX -MD -Zi -Od
STAT_LIB = kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib $(LIB_EXTERNAS)
OPC_LINK = /nologo /dll /machine:I386 /incremental:yes /pdb:"$(NOM_LIB).pdb" /debug /out:"$(NOM_LIB).dll" /implib:"$(NOM_LIB).lib" 
VERS = 0.0.0

default:	$(OBJS) $(LIB)

ecw_jni.obj: 
	$(CC) $(FLAGS) -I$(INCLUDE) ./src/ecw_jni.c
	
$(LIB):	
	link $(STAT_LIB) $(OPC_LINK) $(LIBR) $(OBJS)
	
#*****************************************

Check that the paths of the includes match with our Visual C

Execute this command inside NCSEcw directory:
nmake /f makefile.w32