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Cross-compile on Ubuntu 14.04

 
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jikard0



Joined: 05 Feb 2015
Posts: 8

PostPosted: Tue Mar 03, 2015 3:07 pm    Post subject: Cross-compile on Ubuntu 14.04 Reply with quote

Hello,

How can i cross compile libnatpmp for windows(libnatpmp.dll) under Ubuntu 14.04.
I have installed mingw32 and mingw-w64 packages.

Actually i made unsuccessful attempt:)

I made minor changes in Makefile
OS = $(shell uname -s) -> OS = WINDOWS
but i got error:

# make all
i686-w64-mingw32-gcc -shared -Wl,-soname, -o natpmp.dll natpmp.o getgateway.o -lws2_32 -lIphlpapi -Wl,--no-undefined -Wl,--enable-runtime-pseudo-reloc --Wl,kill-at
i686-w64-mingw32-gcc: error: unrecognized command line option ‘--Wl,kill-at’
make: *** [natpmp.dll] Error 1


After that i remove --Wl,kill-at and change flag -lIphlpapi to -liphlpapi
EXTRA_LD = -lws2_32 -liphlpapi -Wl,--no-undefined -Wl,--enable-runtime-pseudo-reloc

but still getting errors from linker

#make all
i686-w64-mingw32-gcc -shared -Wl,-soname, -o natpmp.dll natpmp.o getgateway.o -lws2_32 -liphlpapi -Wl,--no-undefined -Wl,--enable-runtime-pseudo-reloc
natpmp.o:natpmp.cSad.text+0x199): undefined reference to `natpmp_gettimeofday'
natpmp.o:natpmp.cSad.text+0x1f7): undefined reference to `natpmp_gettimeofday'
natpmp.o:natpmp.cSad.text+0x489): undefined reference to `_imp__readnatpmpresponse'
natpmp.o:natpmp.cSad.text+0x4ad): undefined reference to `natpmp_gettimeofday'
/usr/bin/i686-w64-mingw32-ld: natpmp.o: bad reloc address 0x0 in section `.rdata'
collect2: error: ld returned 1 exit status
make: *** [natpmp.dll] Error 1


Any suggestions?
Thanks
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jikard0



Joined: 05 Feb 2015
Posts: 8

PostPosted: Tue Mar 03, 2015 3:17 pm    Post subject: latest source from github Reply with quote

I forgot to mentioned that i get latest source from github/master branch

regards
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miniupnp
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Joined: 14 Apr 2007
Posts: 1387

PostPosted: Tue Mar 03, 2015 10:32 pm    Post subject: Reply with quote

Code:
--- Makefile    2014-12-13 11:20:11.000000000 +0100
+++ Makefile.mingw32    2015-03-03 23:33:58.000000000 +0100
@@ -4,7 +4,8 @@
 # (c) 2007-2013 Thomas Bernard
 # http://miniupnp.free.fr/libnatpmp.html
 
-OS = $(shell uname -s)
+#OS = $(shell uname -s)
+OS = WIN
 CC ?= gcc
 INSTALL = install -p
 ARCH = $(shell uname -m | sed -e s/i.86/i686/)
@@ -46,7 +47,8 @@
   SHAREDLIB = natpmp.dll
   JNISHAREDLIB = jninatpmp.dll
   CC = i686-w64-mingw32-gcc
-  EXTRA_LD = -lws2_32 -lIphlpapi -Wl,--no-undefined -Wl,--enable-runtime-pseudo-reloc --Wl,kill-at
+  EXTRA_LD = -lws2_32 -liphlpapi -Wl,--no-undefined -Wl,--enable-runtime-pseudo-reloc
+  LIBOBJS += wingettimeofday.o
 else
   SHAREDLIB = libnatpmp.so
   JNISHAREDLIB = libjninatpmp.so

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