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From: "Elfyn McBratney" <emcb_exposure AT hotmail DOT com>
To: nobrow AT eircom DOT net, cygwin AT cygwin DOT com
Subject: Re: gcc, cygwin, jni headers
Date: Fri, 29 Nov 2002 13:36:21 +0000
Mime-Version: 1.0
Content-Type: text/plain; format=flowed
Message-ID: <F145YF3kJFfAmp9tVQN0000f365@hotmail.com>

Hi,

>Ive seen one other post on this topic but there were no replies. Maybe Ill
>be more lucky.
>Im trying to compile a simple dll using gcc and cygwin. Something very
>similar to below used to work on dos and mingw but now Im geting loads of
>errors as gcc tries to compile some headers?! Below is my make file and the
>first few lines of the output. Please help. Its not that I should be using
>solaris versions of the Java headers (jni_md.h and jawt_md.h) is it?

No. The windows headers should do just fine.

TIA.
>El.
>
>#### MAKEFILE ####
>
>JAVA_HOME = C:/Progra~1/java/jdk14~1.0

Consider using a posix path to JAVA_HOME e.g. /cygdrive/c or whatever you 
have mounted your c drive as. Also im not sure whether those squigglies will 
cause you problems (???).

JAVA_HOME = /cygdrive/c/java/jdk14~1.0

>
>CC = gcc

Also use the GNU linker (ld), as im not sure whether this would work

LD = ld

>LD = gcc
>RM = rm
>SHELL = /bin/sh
>
>CFLAGS = -O #-v --save-temps
>CPPFLAGS =
>LDFLAGS = -I$(SRC_DIR) -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/win32
>RMFLAGS = -f
>
>SRC_DIR = .
>
>SOURCES = \
>  $(SRC_DIR)/jvmpi1_1.c
>
>.PHONY: all
>all: jvmpi1_1.dll
>
>jvmpi1_1.dll: $(SOURCES)
>  $(CC) -D_BUILD_DLL $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -shared -o $@
>$(SOURCES) -Wl,--kill-at
>
>%.d: %.c
>  $(SHELL) -ec '$(CC) -MM $(CPPFLAGS) $< \
>   | sed '\''s/\($*\)\.o[ :]*/\1.o $@ : /g'\'' > $@; \
>   [ -s $@ ] || rm $(RMFLAGS) $@'
>
>ifneq ($(MAKECMDGOALS), clean)
>ifneq ($(MAKECMDGOALS), cleanall)
>include $(SOURCES:.c=.d)
>endif
>endif
>
>.PHONY: clean cleanall
>clean:
>  -$(RM) $(RMFLAGS) *.o *.d
>cleanall: clean
>  -$(RM) $(RMFLAGS) *.exe *.dll
>
>#### OUTPUT ####
>
>gcc -D_BUILD_DLL  -O  -I. -IC:/Progra~1/java/jdk14~1.0/include 
>-IC:/Progra~1
>/jav
>a/jdk14~1.0/include/win32 -shared -o jvmpi1_1.dll ./jvmpi1_1.c 
>-Wl,--kill-at
>In file included from C:/Progra~1/java/jdk14~1.0/include/jni.h:30,
>                  from jvmpi1_1.h:8,
>                  from ./jvmpi1_1.c:5:
>C:/Progra~1/java/jdk14~1.0/include/win32/jni_md.h:19: parse error before
>`jlong'
>C:/Progra~1/java/jdk14~1.0/include/win32/jni_md.h:19: warning: data
>definition h
>as no type or storage class
>In file included from jvmpi1_1.h:8,
>                  from ./jvmpi1_1.c:5:
>C:/Progra~1/java/jdk14~1.0/include/jni.h:111: parse error before `jlong'
>C:/Progra~1/java/jdk14~1.0/include/jni.h:111: warning: no semicolon at end
>of st
>ruct or union
>C:/Progra~1/java/jdk14~1.0/include/jni.h:115: parse error before `}'
>C:/Progra~1/java/jdk14~1.0/include/jni.h:115: warning: data definition has
>no ty
>pe or storage class
>C:/Progra~1/java/jdk14~1.0/include/jni.h:258: parse error before `jvalue'
>....
>
>
>
>
>
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