* Package:    dev-dotnet/taglib-sharp-2.1.0.0
 * Repository: gentoo
 * Maintainer: dotnet
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux policykit userland_GNU
 * FEATURES:   preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking taglib-sharp-2.1.0.0.tar.bz2 to /var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/work
>>> Source unpacked in /var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/work
>>> Preparing source in /var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/work/taglib-sharp-2.1.0.0 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/work/taglib-sharp-2.1.0.0 ...
./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --libdir=/usr/lib64 --disable-docs
configure: loading site script /usr/share/config.site
checking for a BSD-compatible install... /usr/lib/portage/python3.4/ebuild-helpers/xattr/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking how to create a ustar tar archive... gnutar
checking whether to enable maintainer-specific portions of Makefiles... no
checking for grep that handles long lines and -e... /bin/grep
checking for gmcs... no
configure: error: You need mcs

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/work/taglib-sharp-2.1.0.0/config.log
 * ERROR: dev-dotnet/taglib-sharp-2.1.0.0::gentoo failed (configure phase):
 *   econf failed
 * 
 * Call stack:
 *               ebuild.sh, line  90:  Called src_configure
 *             environment, line 841:  Called econf '--disable-docs'
 *        phase-helpers.sh, line 662:  Called __helpers_die 'econf failed'
 *   isolated-functions.sh, line 117:  Called die
 * The specific snippet of code:
 *   		die "$@"
 * 
 * If you need support, post the output of `emerge --info '=dev-dotnet/taglib-sharp-2.1.0.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-dotnet/taglib-sharp-2.1.0.0::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-dotnet:taglib-sharp-2.1.0.0:20151106-143357.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/work/taglib-sharp-2.1.0.0'
 * S: '/var/tmp/portage/dev-dotnet/taglib-sharp-2.1.0.0/work/taglib-sharp-2.1.0.0'