Hi,

When jhbuilding evolution-data-server with:
os.environ['LDFLAGS'] = '-Wl,-z,defs'

I got:
Making all in sendmail
make[4]: entrant dans le répertoire « /home/lool/jhbuild-gnome-2.18/checkout/evolution-data-server/camel/providers/sendmail »
/bin/sh ../../../libtool --tag=CC   --mode=link gcc  -Os -Wall -Wmissing-prototypes  -Wno-sign-compare -avoid-version -module -Wl,-O1 -Wl,-z,defs -o libcamelsendmail.la -rpath /home/lool/jhbuild-gnome-2.18/prefix/lib/evolution-data-server-1.2/camel-providers camel-sendmail-provider.lo camel-sendmail-transport.lo..
gcc -shared  .libs/camel-sendmail-provider.o .libs/camel-sendmail-transport.o   -Wl,-O1 -Wl,-z -Wl,defs -Wl,-soname -Wl,libcamelsendmail.so -o .libs/libcamelsendmail.so
.libs/camel-sendmail-provider.o: In function `camel_provider_module_init':
camel-sendmail-provider.c:(.text+0x22): undefined reference to `camel_url_hash'
camel-sendmail-provider.c:(.text+0x2e): undefined reference to `camel_url_equal'
camel-sendmail-provider.c:(.text+0x4c): undefined reference to `camel_provider_register'
.libs/camel-sendmail-transport.o: In function `camel_sendmail_transport_get_type':
camel-sendmail-transport.c:(.text+0x1c): undefined reference to `camel_transport_get_type'
camel-sendmail-transport.c:(.text+0x3a): undefined reference to `camel_type_register'
.libs/camel-sendmail-transport.o: In function `camel_sendmail_transport_class_init':
camel-sendmail-transport.c:(.text+0x6a): undefined reference to `camel_transport_get_type'
camel-sendmail-transport.c:(.text+0x73): undefined reference to `camel_object_class_cast'
...
*** error during stage build of evolution-data-server: ########## Error running make   *** [56/147]

=> sendmail providers needs to link to libcamel for camel_url_hash()


There are a couple other missing link flags, so I'm attaching my notes as a text file and a global patch for all link flags issues.

Bye,