New warnings with clang on OS X 10.7.5 about inklingreader HOT 4 CLOSED

$ git status
# On branch master
nothing to commit (working directory clean)
$ git pull
remote: Counting objects: 18, done.
remote: Compressing objects: 100% (18/18), done.
remote: Total 18 (delta 4), reused 0 (delta 0)
Unpacking objects: 100% (18/18), done.
From https://github.com/roelj/inklingreader
   5a16b6e..3f3c820  master     -> origin/master
Updating 5a16b6e..3f3c820
Fast-forward
 src/converters/svg.c     |  217 ++++++++++++++++++++++-----------------------
 src/gui/mainwindow.c     |    2 +
 src/high/configuration.c |    2 +-
 src/main.c               |    1 -
 src/parsers/wpi.c        |   20 ++--
 5 files changed, 119 insertions(+), 123 deletions(-)
$ touch AUTHORS NEWS
$ autoreconf -i
$ CC=CLANG ./configure --prefix=$HOME/.local
checking for a BSD-compatible install... /Volumes/magenta/mp-trunk/quartz/bin/ginstall -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /Volumes/magenta/mp-trunk/quartz/bin/gmkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether make supports nested variables... (cached) yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for gcc... CLANG
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether CLANG accepts -g... yes
checking for CLANG option to accept ISO C89... none needed
checking whether CLANG understands -c and -o together... yes
checking for style of include used by make... GNU
checking dependency style of CLANG... gcc3
checking for pkg-config... /Volumes/magenta/mp-trunk/quartz/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for INKLINGREADER... yes
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: executing depfiles commands
$ make
  CC       src/main.o
  CC       src/gui/mainwindow.o
  CC       src/gui/mainwindow_sig.o
  CC       src/converters/svg.o
  CC       src/converters/png.o
  CC       src/converters/json.o
  CC       src/converters/pdf.o
  CC       src/parsers/wpi.o
  CC       src/high/conversion.o
  CC       src/high/configuration.o
  CCLD     inklingreader
$ ./inklingreader --version
Version: 0.6
$