Сборка WebKit-1.0 и webkit-sharp

checking build system type... x86_64-apple-darwin12.5.0
checking host system type... x86_64-apple-darwin12.5.0
checking target system type... x86_64-apple-darwin12.5.0
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... ./install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether to enable maintainer-specific portions of Makefiles... yes
checking for pkg-config... /Users/basson/.rvm/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for MONO_DEPENDENCY... yes
checking for MONO_DEPENDENCY... no
checking for mono... /usr/bin/mono
checking for mcs... /usr/bin/mcs
checking for gacutil... /usr/bin/gacutil
checking for GTK_SHARP... yes
checking for WEBKIT... no
configure: error: Package requirements (webkit-1.0 >= 1.1.15) were not met:

No package 'webkit-1.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

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