cmake/Modules/FindPostgreSQL.cmake

# - Find PostgreSQL library
#
# This module defines:
#  POSTGRESQL_FOUND - True if the package is found
#  POSTGRESQL_INCLUDE_DIR - containing libpq-fe.h
#  POSTGRESQL_LIBRARIES - Libraries to link to use PQ functions.

if (POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)
  set(POSTGRESQL_FIND_QUIETLY TRUE)
endif (POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)

# Include dir
find_path(POSTGRESQL_INCLUDE_DIR 
	NAMES libpq-fe.h
	PATH_SUFFIXES pgsql postgresql
)

# Library
find_library(POSTGRESQL_LIBRARY 
  NAMES pq
)

# handle the QUIETLY and REQUIRED arguments and set POSTGRESQL_FOUND to TRUE if 
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(POSTGRESQL DEFAULT_MSG POSTGRESQL_LIBRARY POSTGRESQL_INCLUDE_DIR)

IF(POSTGRESQL_FOUND)
  SET( POSTGRESQL_LIBRARIES ${POSTGRESQL_LIBRARY} )
ELSE(POSTGRESQL_FOUND)
  SET( POSTGRESQL_LIBRARIES )
ENDIF(POSTGRESQL_FOUND)

# Lastly make it so that the POSTGRESQL_LIBRARY and POSTGRESQL_INCLUDE_DIR variables
# only show up under the advanced options in the gui cmake applications.
MARK_AS_ADVANCED( POSTGRESQL_LIBRARY POSTGRESQL_INCLUDE_DIR )