[MacPorts] #57072: postgresql11 requires pkg-config

[MacPorts]

#57072: postgresql11 requires pkg-config
------------------------+----------------------------
 Reporter:  ryandesign  |      Owner:  jyrkiwahlstedt
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  postgresql11
------------------------+----------------------------
 {{{
 checking whether to build with ICU support... yes
 checking for pkg-config... no
 checking for icu-uc icu-i18n... no
 configure: error: in `/opt/local/var/macports/build
 /_Users_travis_build_macports_macports-
 ports_databases_postgresql11/postgresql11/work/postgresql-11beta2':
 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 ICU_CFLAGS
 and ICU_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
 }}}

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Ticket URL: <https://trac.macports.org/ticket/57072>
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