File: libfguid.m4

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dnl Functions for libfguid
dnl
dnl Version: 20160417

dnl Function to detect if libfguid is available
dnl ac_libfguid_dummy is used to prevent AC_CHECK_LIB adding unnecessary -l<library> arguments
AC_DEFUN([AX_LIBFGUID_CHECK_LIB],
 [dnl Check if parameters were provided
 AS_IF(
  [test "x$ac_cv_with_libfguid" != x && test "x$ac_cv_with_libfguid" != xno && test "x$ac_cv_with_libfguid" != xauto-detect],
  [AS_IF(
   [test -d "$ac_cv_with_libfguid"],
   [CFLAGS="$CFLAGS -I${ac_cv_with_libfguid}/include"
   LDFLAGS="$LDFLAGS -L${ac_cv_with_libfguid}/lib"],
   [AC_MSG_WARN([no such directory: $ac_cv_with_libfguid])
   ])
  ])

 AS_IF(
  [test "x$ac_cv_with_libfguid" = xno],
  [ac_cv_libfguid=no],
  [dnl Check for a pkg-config file
  AS_IF(
   [test "x$cross_compiling" != "xyes" && test "x$PKGCONFIG" != "x"],
   [PKG_CHECK_MODULES(
    [libfguid],
    [libfguid >= 20120426],
    [ac_cv_libfguid=yes],
    [ac_cv_libfguid=no])
   ])

  AS_IF(
   [test "x$ac_cv_libfguid" = xyes],
   [ac_cv_libfguid_CPPFLAGS="$pkg_cv_libfguid_CFLAGS"
   ac_cv_libfguid_LIBADD="$pkg_cv_libfguid_LIBS"],
   [dnl Check for headers
   AC_CHECK_HEADERS([libfguid.h])

   AS_IF(
    [test "x$ac_cv_header_libfguid_h" = xno],
    [ac_cv_libfguid=no],
    [dnl Check for the individual functions
    ac_cv_libfguid=yes

    AC_CHECK_LIB(
     fguid,
     libfguid_get_version,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])

    dnl Identifier functions
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_initialize,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_free,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_copy_from_byte_stream,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_get_string_size,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_copy_to_utf8_string,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_copy_to_utf8_string_with_index,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_copy_to_utf16_string,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_copy_to_utf16_string_with_index,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_copy_to_utf32_string,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])
    AC_CHECK_LIB(
     fguid,
     libfguid_identifier_copy_to_utf32_string_with_index,
     [ac_cv_libfguid_dummy=yes],
     [ac_cv_libfguid=no])

    ac_cv_libfguid_LIBADD="-lfguid"
    ])
   ])
  ])

 AS_IF(
  [test "x$ac_cv_libfguid" = xyes],
  [AC_DEFINE(
   [HAVE_LIBFGUID],
   [1],
   [Define to 1 if you have the `fguid' library (-lfguid).])
  ])

 AS_IF(
  [test "x$ac_cv_libfguid" = xyes],
  [AC_SUBST(
   [HAVE_LIBFGUID],
   [1]) ],
  [AC_SUBST(
   [HAVE_LIBFGUID],
   [0])
  ])
 ])

dnl Function to detect how to enable libfguid
AC_DEFUN([AX_LIBFGUID_CHECK_ENABLE],
 [AX_COMMON_ARG_WITH(
  [libfguid],
  [libfguid],
  [search for libfguid in includedir and libdir or in the specified DIR, or no if to use local version],
  [auto-detect],
  [DIR])

 dnl Check for a shared library version
 AX_LIBFGUID_CHECK_LIB

 dnl Check if the dependencies for the local library version
 AS_IF(
  [test "x$ac_cv_libfguid" != xyes],
  [ac_cv_libfguid_CPPFLAGS="-I../libfguid";
  ac_cv_libfguid_LIBADD="../libfguid/libfguid.la";

  ac_cv_libfguid=local

  AC_DEFINE(
   [HAVE_LOCAL_LIBFGUID],
   [1],
   [Define to 1 if the local version of libfguid is used.])
  AC_SUBST(
   [HAVE_LOCAL_LIBFGUID],
   [1])
  ])

 AM_CONDITIONAL(
  [HAVE_LOCAL_LIBFGUID],
  [test "x$ac_cv_libfguid" = xlocal])
 AS_IF(
  [test "x$ac_cv_libfguid_CPPFLAGS" != "x"],
  [AC_SUBST(
   [LIBFGUID_CPPFLAGS],
   [$ac_cv_libfguid_CPPFLAGS])
  ])
 AS_IF(
  [test "x$ac_cv_libfguid_LIBADD" != "x"],
  [AC_SUBST(
   [LIBFGUID_LIBADD],
   [$ac_cv_libfguid_LIBADD])
  ])

 AS_IF(
  [test "x$ac_cv_libfguid" = xyes],
  [AC_SUBST(
   [ax_libfguid_pc_libs_private],
   [-lfguid])
  ])

 AS_IF(
  [test "x$ac_cv_libfguid" = xyes],
  [AC_SUBST(
   [ax_libfguid_spec_requires],
   [libfguid])
  AC_SUBST(
   [ax_libfguid_spec_build_requires],
   [libfguid-devel])
  ])
 ])