anon:~$ cd lxdream
anon:~/lxdream$ dir
acconfig.h    autogen.sh     config.h.in   COPYING     Info.plist.in    lxdreamrc    mkinstalldirs  README         test
acinclude.m4  bundlelibs.pl  config.log    CREDITS     INSTALL          m4           NEWS           RELEASE_NOTES
aclocal.m4    ChangeLog      config.sub    debian      install-sh       Makefile.am  pixmaps        src
android       compile        configure     depcomp     lxdream.desktop  Makefile.in  pkgconfig.tgz  stamp-h.in
AUTHORS       config.guess   configure.in  dmg.layout  lxdream.pod      missing      po             STATUS
anon:~/lxdream$ p1 < lxdream-0.9.1-glib-single-include.patch
bash: lxdream-0.9.1-glib-single-include.patch: No such file or directory
anon:~/lxdream$ lxdream-0.9.1-glib-single-include.patch
lxdream-0.9.1-glib-single-include.patch: command not found
anon:~/lxdream$ ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking for style of include used by make... GNU
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking for strerror in -lcposix... no
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking dependency style of gcc... (cached) gcc3
checking for gcc... (cached) gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... (cached) yes
checking for gcc option to accept ISO C89... (cached) none needed
checking dependency style of gcc... (cached) gcc3
checking how to run the C preprocessor... gcc -E
checking for gcc... gcc
checking whether we are using the GNU C compiler... (cached) yes
checking whether gcc accepts -g... no
checking for gcc option to accept ISO C89... unsupported
checking dependency style of gcc... gcc3
checking for gcc option to accept ISO Standard C... (cached) unsupported
checking how to run the C preprocessor... gcc -E
checking for gcc... gcc
checking whether we are using the GNU Objective C compiler... no
checking whether gcc accepts -g... no
checking for a sed that does not truncate output... /bin/sed
checking for ranlib... ranlib
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for void *... yes
checking size of void *... 8
checking for ANSI C header files... (cached) yes
checking dependency style of gcc... gcc3
checking for pod2man... /usr/bin/pod2man
checking for pod2html... /usr/bin/pod2html
checking whether we are using the GNU Objective C compiler... (cached) no
checking whether gcc accepts -g... (cached) no
checking for a working Objective-C compiler... No
checking CC version... GCC
checking if gcc supports -msse2... yes
checking if gcc supports -mfpmath=sse... yes
checking dlfcn.h usability... yes
checking dlfcn.h presence... yes
checking for dlfcn.h... yes
checking for library containing dlopen... -ldl
checking if linker accepts -rdynamic... yes
checking support for fastcall calling conventions... yes
checking support for force inlining... __attribute__((always_inline))
checking if we have a working __builtin_frame_address()... yes
checking for library containing listen... none required
checking for library containing inet_ntoa... none required
checking for pkg-config... no
checking for LIBPNG... configure: error: The pkg-config script could not be found or is too old.  Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full
path to pkg-config.

Alternatively, you may set the environment variables LIBPNG_CFLAGS
and LIBPNG_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

To get pkg-config, see <http://pkg-config.freedesktop.org/>.
See `config.log' for more details.