58 lines
1.5 KiB
Plaintext
58 lines
1.5 KiB
Plaintext
dnl Check for LIBLTDL compiler flags. On success, set nut_have_libltdl="yes"
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dnl and set LIBLTDL_CFLAGS and LIBLTDL_LIBS. On failure, set
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dnl nut_have_libltdl="no". This macro can be run multiple times, but will
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dnl do the checking only once.
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AC_DEFUN([NUT_CHECK_LIBLTDL],
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[
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if test -z "${nut_have_libltdl_seen}"; then
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nut_have_libltdl_seen=yes
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dnl save LIBS
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LIBS_ORIG="${LIBS}"
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LIBS=""
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AC_MSG_CHECKING(for libltdl cflags)
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AC_ARG_WITH(libltdl-includes,
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AS_HELP_STRING([@<:@--with-libltdl-includes=CFLAGS@:>@], [include flags for the libltdl library]),
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[
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case "${withval}" in
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yes|no)
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AC_MSG_ERROR(invalid option --with(out)-libltdl-includes - see docs/configure.txt)
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;;
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*)
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CFLAGS="${withval}"
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;;
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esac
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], [])
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AC_MSG_RESULT([${CFLAGS}])
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AC_MSG_CHECKING(for libltdl ldflags)
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AC_ARG_WITH(libltdl-libs,
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AS_HELP_STRING([@<:@--with-libltdl-libs=LIBS@:>@], [linker flags for the libltdl library]),
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[
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case "${withval}" in
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yes|no)
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AC_MSG_ERROR(invalid option --with(out)-libltdl-libs - see docs/configure.txt)
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;;
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*)
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LIBS="${withval}"
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;;
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esac
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], [])
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AC_MSG_RESULT([${LIBS}])
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AC_CHECK_HEADERS(ltdl.h, [nut_have_libltdl=yes], [nut_have_libltdl=no], [AC_INCLUDES_DEFAULT])
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AC_SEARCH_LIBS(lt_dlinit, ltdl, [], [nut_have_libltdl=no])
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if test "${nut_have_libltdl}" = "yes"; then
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AC_DEFINE(HAVE_LIBLTDL, 1, [Define to enable libltdl support])
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LIBLTDL_CFLAGS=""
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LIBLTDL_LIBS="${LIBS}"
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fi
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dnl restore original LIBS
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LIBS="${LIBS_ORIG}"
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fi
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])
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