/tmp/mongo-c-driver-1.1.11 $ ./configure --enable-html-docs && make html
...
...
...
libmongoc was configured with the following options:

Build configuration:
  Enable debugging (slow)                          : no
  Compile with debug symbols (slow)                : no
  Enable GCC build optimization                    : yes
  Enable automatic binary hardening                : yes
  Code coverage support                            : no
  Cross Compiling                                  : no
  Fast counters                                    : no
  Shared memory performance counters               : yes
  SASL                                             : sasl2
  SSL                                              : yes
  Libbson                                          : system

Documentation:
  man                                              : no
  HTML                                             : yes

make[1]: Entering directory '/tmp/mongo-c-driver-1.1.11'
make[1]: Nothing to be done for 'html-am'.
make[1]: Leaving directory '/tmp/mongo-c-driver-1.1.11'
  GEN      html
warning: failed to load external entity "file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml"
file:///tmp/mongo-c-driver-1.1.11/doc/finding-document.page:13: element include: XInclude error : could not load file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml, and no fallback was found
warning: failed to load external entity "file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml"
file:///tmp/mongo-c-driver-1.1.11/doc/executing-command.page:13: element include: XInclude error : could not load file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml, and no fallback was found
warning: failed to load external entity "file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml"
file:///tmp/mongo-c-driver-1.1.11/doc/deleting-document.page:13: element include: XInclude error : could not load file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml, and no fallback was found
warning: failed to load external entity "file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml"
file:///tmp/mongo-c-driver-1.1.11/doc/inserting-document.page:13: element include: XInclude error : could not load file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml, and no fallback was found
warning: failed to load external entity "file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml"
file:///tmp/mongo-c-driver-1.1.11/doc/updating-document.page:13: element include: XInclude error : could not load file:/tmp/mongo-c-driver-1.1.11/doc/basic-prequisites.xml, and no fallback was found
warning: failed to load external entity "file:///tmp/mongo-c-driver-1.1.11/build/libbson.xsl"
compilation error: file - line 14 element include
xsl:include : unable to load file:///tmp/mongo-c-driver-1.1.11/build/libbson.xsl