pkg-config.cmake

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MACRO(MYSQL_CHECK_PKGCONFIG)
  IF(LINUX OR FREEBSD)
    # Do a sanity check, before bailing out in FIND_PACKAGE below.
    FIND_PROGRAM(MY_PKG_CONFIG_EXECUTABLE NAMES pkg-config
      DOC "pkg-config executable")
    IF(NOT MY_PKG_CONFIG_EXECUTABLE)
      MESSAGE(WARNING "Cannot find pkg-config. You need to "
        "install the required package:\n"
        "  Debian/Ubuntu:              apt install pkg-config\n"
        "  RedHat/Fedora/Oracle Linux: yum install pkg-config\n"
        "  SuSE:                       zypper install pkg-config\n"
        )
    ENDIF()
    FIND_PACKAGE(PkgConfig REQUIRED)
  ENDIF()
ENDMACRO()