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dnl Checks for libfole required headers and functions
dnl
dnl Version: 20181117
dnl Function to detect if libfole is available
dnl ac_libfole_dummy is used to prevent AC_CHECK_LIB adding unnecessary -l<library> arguments
AC_DEFUN([AX_LIBFOLE_CHECK_LIB],
[AS_IF(
[test "x$ac_cv_enable_shared_libs" = xno || test "x$ac_cv_with_libfole" = xno],
[ac_cv_libfole=no],
[dnl Check if the directory provided as parameter exists
AS_IF(
[test "x$ac_cv_with_libfole" != x && test "x$ac_cv_with_libfole" != xauto-detect],
[AS_IF(
[test -d "$ac_cv_with_libfole"],
[CFLAGS="$CFLAGS -I${ac_cv_with_libfole}/include"
LDFLAGS="$LDFLAGS -L${ac_cv_with_libfole}/lib"],
[AC_MSG_FAILURE(
[no such directory: $ac_cv_with_libfole],
[1])
])
ac_cv_libfole=check],
[dnl Check for a pkg-config file
AS_IF(
[test "x$cross_compiling" != "xyes" && test "x$PKGCONFIG" != "x"],
[PKG_CHECK_MODULES(
[libfole],
[libfole >= 20120426],
[ac_cv_libfole=yes],
[ac_cv_libfole=check])
])
AS_IF(
[test "x$ac_cv_libfole" = xyes],
[ac_cv_libfole_CPPFLAGS="$pkg_cv_libfole_CFLAGS"
ac_cv_libfole_LIBADD="$pkg_cv_libfole_LIBS"])
])
AS_IF(
[test "x$ac_cv_libfole" = xcheck],
[dnl Check for headers
AC_CHECK_HEADERS([libfole.h])
AS_IF(
[test "x$ac_cv_header_libfole_h" = xno],
[ac_cv_libfole=no],
[dnl Check for the individual functions
ac_cv_libfole=yes
AC_CHECK_LIB(
fole,
libfole_get_version,
[ac_cv_libfole_dummy=yes],
[ac_cv_libfole=no])
dnl TODO add functions
ac_cv_libfole_LIBADD="-lfole"])
])
AS_IF(
[test "x$ac_cv_with_libfole" != x && test "x$ac_cv_with_libfole" != xauto-detect && test "x$ac_cv_libfole" != xyes],
[AC_MSG_FAILURE(
[unable to find supported libfole in directory: $ac_cv_with_libfole],
[1])
])
])
AS_IF(
[test "x$ac_cv_libfole" = xyes],
[AC_DEFINE(
[HAVE_LIBFOLE],
[1],
[Define to 1 if you have the `fole' library (-lfole).])
])
AS_IF(
[test "x$ac_cv_libfole" = xyes],
[AC_SUBST(
[HAVE_LIBFOLE],
[1]) ],
[AC_SUBST(
[HAVE_LIBFOLE],
[0])
])
])
dnl Function to detect if libfole dependencies are available
AC_DEFUN([AX_LIBFOLE_CHECK_LOCAL],
[dnl No additional checks.
ac_cv_libfole_CPPFLAGS="-I../libfole";
ac_cv_libfole_LIBADD="../libfole/libfole.la";
ac_cv_libfole=local
])
dnl Function to detect how to enable libfole
AC_DEFUN([AX_LIBFOLE_CHECK_ENABLE],
[AX_COMMON_ARG_WITH(
[libfole],
[libfole],
[search for libfole in includedir and libdir or in the specified DIR, or no if to use local version],
[auto-detect],
[DIR])
dnl Check for a shared library version
AX_LIBFOLE_CHECK_LIB
dnl Check if the dependencies for the local library version
AS_IF(
[test "x$ac_cv_libfole" != xyes],
[AX_LIBFOLE_CHECK_LOCAL
AC_DEFINE(
[HAVE_LOCAL_LIBFOLE],
[1],
[Define to 1 if the local version of libfole is used.])
AC_SUBST(
[HAVE_LOCAL_LIBFOLE],
[1])
])
AM_CONDITIONAL(
[HAVE_LOCAL_LIBFOLE],
[test "x$ac_cv_libfole" = xlocal])
AS_IF(
[test "x$ac_cv_libfole_CPPFLAGS" != "x"],
[AC_SUBST(
[LIBFOLE_CPPFLAGS],
[$ac_cv_libfole_CPPFLAGS])
])
AS_IF(
[test "x$ac_cv_libfole_LIBADD" != "x"],
[AC_SUBST(
[LIBFOLE_LIBADD],
[$ac_cv_libfole_LIBADD])
])
AS_IF(
[test "x$ac_cv_libfole" = xyes],
[AC_SUBST(
[ax_libfole_pc_libs_private],
[-lfole])
])
AS_IF(
[test "x$ac_cv_libfole" = xyes],
[AC_SUBST(
[ax_libfole_spec_requires],
[libfole])
AC_SUBST(
[ax_libfole_spec_build_requires],
[libfole-devel])
])
])
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