nettle-bugs September 2010

nettle-bugs@lists.lysator.liu.se

3 participants
4 discussions

Configuration and MinGW-w64 Compatibility
by Hoyt, David 24 Sep '10

24 Sep '10

Hello, I'm preparing for future gnutls integration which says in the next stable release, it'll be using nettle by default. I'm working on Windows builds and the 2.1 release has several problems. I'm not entirely familiar with the autotools, so I don't know exactly where the problem lies - but it generates shared library names in the unix/linux style (e.g. libnettle.so.4) instead of Windows-style: libnettle-4.dll. I can simply rename the dll and it'll work, but it's a pain and not in line with most other open source projects. Also, when I use --enabled-shared --disable-static, my configure options are not respected. That is, it builds a static lib as well as the (incorrectly named) shared library. A .dll.a lib file is not created. When I use typical configure options such as --prefix= --libexecdir= --bindir= --libdir= --includedir=, they're not honored. e.g. I specified a different bindir for the shared libs, yet they still ended up in the --libdir directory. This may result from the use of an older autotools/libtool setup, but I'm unsure. I'm building natively using GCC 4.5.1 (x86, 32-bit) from the MinGW-w64 folks on Windows 7 64-bit. Thanks, - David Hoyt

2 5

Patch for configure.ac
by Hoyt, David 17 Sep '10

17 Sep '10

I tried to send the following w/ an attachment, but it got bounced. So here it is w/ the attachment inlined: The attached patch for configure.ac allowed for a normal compile w/ mingw-w64 w/ --enabled-shared. It's really only a stopgap since you would need to do something more intelligent when you detect --enable-shared and then dynamically adjust hogweed's link options. Do you think it would be possible to add libtool and pkg-config support? Thanks, - David Hoyt --- configure.ac Sun Jul 25 12:30:13 2010 +++ configure.ac Thu Sep 16 12:48:51 2010 @@ -233,6 +233,19 @@ SHLIBCFLAGS="$CCPIC" case "$host_os" in + mingw32*) + LIBNETTLE_FORLINK='libnettle-$(LIBNETTLE_MAJOR)-$(LIBNETTLE_MINOR).dll' + LIBNETTLE_SONAME='' + LIBNETTLE_FILE='libnettle.dll.a' + LIBNETTLE_LINK='$(CC) $(LDFLAGS) -shared -Wl,--out-implib=$(LIBNETTLE_FILE) -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive' + LIBNETTLE_LIBS='-Wl,--no-whole-archive $(LIBS)' + + LIBHOGWEED_FORLINK='libhogweed-$(LIBHOGWEED_MAJOR)-$(LIBHOGWEED_MINOR).dll' + LIBHOGWEED_SONAME='' + LIBHOGWEED_FILE='libhogweed.dll.a' + LIBHOGWEED_LINK='$(CC) $(LDFLAGS) -shared -Wl,--out-implib=$(LIBHOGWEED_FILE) -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive' + LIBHOGWEED_LIBS='-Wl,--no-whole-archive $(LIBS) libnettle.dll.a' + ;; cygwin*) LIBNETTLE_FORLINK='cygnettle-$(LIBNETTLE_MAJOR)-$(LIBNETTLE_MINOR).dll' LIBNETTLE_SONAME=''

2 4

LGPL Configuration
by Hoyt, David 17 Sep '10

17 Sep '10

As a feature request, it'd be useful to have an additional configure flag "--enable-gpl" like the FFmpeg folks use that allows GPL algorithms to be built. Otherwise, by default, LGPL algorithms/code only is allowed in shared libraries. Right now I have to play around with makefiles to remove GPL-only algorithms (as per the included manual) such as serpent and blowfish. Thanks, - David Hoyt

2 2

Hogweed and Nettle Dependencies
by Hoyt, David 17 Sep '10

17 Sep '10

Should libhogweed have a dependency on libnettle if I'm compiling each as shared libraries? Or should I be linking against nettle's static library and thus have duplicate functions in each? Thanks, - David Hoyt

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nettle-bugs September 2010