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dnl Checks for required headers and functions
dnl
dnl Version: 20200713
dnl Function to detect if liblnk dependencies are available
AC_DEFUN([AX_LIBLNK_CHECK_LOCAL],
[dnl Check for internationalization functions in liblnk/liblnk_i18n.c
AC_CHECK_FUNCS([bindtextdomain])
])
dnl Function to detect if lnktools dependencies are available
AC_DEFUN([AX_LNKTOOLS_CHECK_LOCAL],
[AC_CHECK_HEADERS([signal.h sys/signal.h unistd.h])
AC_CHECK_FUNCS([close getopt setvbuf])
AS_IF(
[test "x$ac_cv_func_close" != xyes],
[AC_MSG_FAILURE(
[Missing function: close],
[1])
])
])
dnl Function to check if DLL support is needed
AC_DEFUN([AX_LIBLNK_CHECK_DLL_SUPPORT],
[AS_IF(
[test "x$enable_shared" = xyes && test "x$ac_cv_enable_static_executables" = xno],
[AS_CASE(
[$host],
[*cygwin* | *mingw* | *msys*],
[AC_DEFINE(
[HAVE_DLLMAIN],
[1],
[Define to 1 to enable the DllMain function.])
AC_SUBST(
[HAVE_DLLMAIN],
[1])
AC_SUBST(
[LIBLNK_DLL_EXPORT],
["-DLIBLNK_DLL_EXPORT"])
AC_SUBST(
[LIBLNK_DLL_IMPORT],
["-DLIBLNK_DLL_IMPORT"])
])
])
])
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