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src/xslt.c: In function 'apply_xslt_sheet':
src/xslt.c:417:69: error: dereferencing pointer to incomplete type
src/xslt.c:421:55: error: dereferencing pointer to incomplete type
src/xslt.c:421:80: error: dereferencing pointer to incomplete type

This is with default build options.

Hiawatha version: 8.6
Operating System: NetBSD/amd64 6.0

Thanks for reporting. I'll take a look at it for the next release.

Whenever you find it, please post. I'll include the patch locally in the package I'm creating, until 8.7(?) is released.

I'll see what I can do. Looking into this issue requires me to install and learn NetBSD. That takes some time. If you have an account for me on some NetBSD machine and with all the required building software installed, that could speed up the process.

I confirm this bug on ROSA Linux Desktop 2012.1 beta with Linaro gcc 4.7.3_2012.10 and libxml2 2.9.0.
Build log: http://abf.rosalinux.ru/downloads/rosa2012.1/container/hiawatha-847836/log/hiawatha/build.log
Installed packages: http://abf.rosalinux.ru/downloads/rosa2012.1/container/hiawatha-847836/log/hiawatha/rpm_qa.log

This issue can be related to libxml2 API changes introduced by this commit: http://git.gnome.org/browse/libxml2/commit/include/libxml/xmlIO.h?id=65c7d3b2e6506283eecd19a23dcf0122fbcdac33

Try with this file and please let me know if it works.
http://www.hiawatha-webserver.org/files/xslt.c

Thank you!

Now xslt.c is being compiled successfully, but I get a linkage error:

/usr/bin/gcc -Wall -Wextra -O2 -g -Wl,--as-needed -Wl,--no-undefined -Wl,-z,relro -Wl,-O1 -Wl,--build-id -Wl,--enable-new-dtags -Wl,--hash-style=gnu CMakeFiles/hiawatha.dir/src/alternative.c.o CMakeFiles/hiawatha.dir/src/cache.c.o CMakeFiles/hiawatha.dir/src/cgi.c.o CMakeFiles/hiawatha.dir/src/client.c.o CMakeFiles/hiawatha.dir/src/envir.c.o CMakeFiles/hiawatha.dir/src/hiawatha.c.o CMakeFiles/hiawatha.dir/src/http.c.o CMakeFiles/hiawatha.dir/src/httpauth.c.o CMakeFiles/hiawatha.dir/src/libfs.c.o CMakeFiles/hiawatha.dir/src/libip.c.o CMakeFiles/hiawatha.dir/src/liblist.c.o CMakeFiles/hiawatha.dir/src/libssl.c.o CMakeFiles/hiawatha.dir/src/libstr.c.o CMakeFiles/hiawatha.dir/src/log.c.o CMakeFiles/hiawatha.dir/src/mimetype.c.o CMakeFiles/hiawatha.dir/src/monitor.c.o CMakeFiles/hiawatha.dir/src/rproxy.c.o CMakeFiles/hiawatha.dir/src/send.c.o CMakeFiles/hiawatha.dir/src/serverconfig.c.o CMakeFiles/hiawatha.dir/src/session.c.o CMakeFiles/hiawatha.dir/src/target.c.o CMakeFiles/hiawatha.dir/src/tomahawk.c.o CMakeFiles/hiawatha.dir/src/toolkit.c.o CMakeFiles/hiawatha.dir/src/userconfig.c.o CMakeFiles/hiawatha.dir/src/xslt.c.o -o hiawatha -rdynamic -lcrypt -lpthread -lz -lpolarssl -lxml2 -lxslt -Wl,-rpath,:::::::::::::::::::
CMakeFiles/hiawatha.dir/src/xslt.c.o: In function `show_index':
/home/m/rpmbuild/BUILD/hiawatha-8.6/src/xslt.c:709: undefined reference to `check_free'
/home/m/rpmbuild/BUILD/hiawatha-8.6/src/xslt.c:726: undefined reference to `check_free'
/home/m/rpmbuild/BUILD/hiawatha-8.6/src/xslt.c:722: undefined reference to `check_free'
collect2: error: ld returned 1 exit status

Try redownloading the xslt file. I've made some changes. The problem was that in the meantime some changes has been made to the rest of the code, so the first xslt.c file required the rest of the 8.7 beta code.

Thank you again! Now build finished successfully.

This patch fixes the build error for me, too.

Now I get an error about libpolarssl not being found in runtime path. I'm thinking it's due to my build framework tho. Is it supposed to land at ${PREFIX}/lib?

(Adding some more text so the forum doesn't see me as a spammer.)

There is some issue with the cmake build script if you change the prefix path after you already have run cmake. Remove the entire source directory, re-unzip the source tarball and run cmake only once with the prefix setting. Let me know if that works.