summaryrefslogtreecommitdiff
path: root/source3/aclocal.m4
diff options
context:
space:
mode:
Diffstat (limited to 'source3/aclocal.m4')
-rw-r--r--source3/aclocal.m4107
1 files changed, 107 insertions, 0 deletions
diff --git a/source3/aclocal.m4 b/source3/aclocal.m4
index 21358e2a71..3a49f7e249 100644
--- a/source3/aclocal.m4
+++ b/source3/aclocal.m4
@@ -111,6 +111,113 @@ AC_DEFUN(AC_LIBTESTFUNC,
esac
])
+# AC_CHECK_LIB_EXT(LIBRARY, [EXT_LIBS], [FUNCTION],
+# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
+# [ADD-ACTION-IF-FOUND],[OTHER-LIBRARIES])
+# ------------------------------------------------------
+#
+# Use a cache variable name containing both the library and function name,
+# because the test really is for library $1 defining function $3, not
+# just for library $1. Separate tests with the same $1 and different $3s
+# may have different results.
+#
+# Note that using directly AS_VAR_PUSHDEF([ac_Lib], [ac_cv_lib_$1_$3])
+# is asking for troubles, since AC_CHECK_LIB($lib, fun) would give
+# ac_cv_lib_$lib_fun, which is definitely not what was meant. Hence
+# the AS_LITERAL_IF indirection.
+#
+# FIXME: This macro is extremely suspicious. It DEFINEs unconditionnally,
+# whatever the FUNCTION, in addition to not being a *S macro. Note
+# that the cache does depend upon the function we are looking for.
+#
+# It is on purpose we used `ac_check_lib_ext_save_LIBS' and not just
+# `ac_save_LIBS': there are many macros which don't want to see `LIBS'
+# changed but still want to use AC_CHECK_LIB_EXT, so they save `LIBS'.
+# And ``ac_save_LIBS' is too tempting a name, so let's leave them some
+# freedom.
+AC_DEFUN([AC_CHECK_LIB_EXT],
+[
+AH_CHECK_LIB_EXT([$1])
+ac_check_lib_ext_save_LIBS=$LIBS
+LIBS="-l$1 $$2 $7 $LIBS"
+AS_LITERAL_IF([$1],
+ [AS_VAR_PUSHDEF([ac_Lib_ext], [ac_cv_lib_ext_$1])],
+ [AS_VAR_PUSHDEF([ac_Lib_ext], [ac_cv_lib_ext_$1''])])dnl
+
+m4_ifval([$3],
+ [
+ AH_CHECK_FUNC_EXT([$3])
+ AS_LITERAL_IF([$1],
+ [AS_VAR_PUSHDEF([ac_Lib_func], [ac_cv_lib_ext_$1_$3])],
+ [AS_VAR_PUSHDEF([ac_Lib_func], [ac_cv_lib_ext_$1''_$3])])dnl
+ AC_CACHE_CHECK([for $3 in -l$1], ac_Lib_func,
+ [AC_TRY_LINK_FUNC($3,
+ [AS_VAR_SET(ac_Lib_func, yes);
+ AS_VAR_SET(ac_Lib_ext, yes)],
+ [AS_VAR_SET(ac_Lib_func, no);
+ AS_VAR_SET(ac_Lib_ext, no)])
+ ])
+ AS_IF([test AS_VAR_GET(ac_Lib_func) = yes],
+ [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_$3))])dnl
+ AS_VAR_POPDEF([ac_Lib_func])dnl
+ ],[
+ AC_CACHE_CHECK([for -l$1], ac_Lib_ext,
+ [AC_TRY_LINK_FUNC([main],
+ [AS_VAR_SET(ac_Lib_ext, yes)],
+ [AS_VAR_SET(ac_Lib_ext, no)])
+ ])
+ ])
+LIBS=$ac_check_lib_ext_save_LIBS
+
+AS_IF([test AS_VAR_GET(ac_Lib_ext) = yes],
+ [m4_default([$4],
+ [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_LIB$1))
+ case "$$2" in
+ *-l$1*)
+ ;;
+ *)
+ $2="$$2 -l$1"
+ ;;
+ esac])
+ [$6]
+ ],
+ [$5])dnl
+AS_VAR_POPDEF([ac_Lib_ext])dnl
+])# AC_CHECK_LIB_EXT
+
+# AH_CHECK_LIB_EXT(LIBNAME)
+# ---------------------
+m4_define([AH_CHECK_LIB_EXT],
+[AH_TEMPLATE(AS_TR_CPP(HAVE_LIB$1),
+ [Define to 1 if you have the `]$1[' library (-l]$1[).])])
+
+# AC_CHECK_FUNCS_EXT(FUNCTION, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# -----------------------------------------------------------------
+dnl check for a function in a $LIBS and $OTHER_LIBS libraries variable.
+dnl AC_CHECK_FUNC_EXT(func,OTHER_LIBS,IF-TRUE,IF-FALSE)
+AC_DEFUN([AC_CHECK_FUNC_EXT],
+[
+ AH_CHECK_FUNC_EXT($1)
+ ac_check_func_ext_save_LIBS=$LIBS
+ LIBS="$2 $LIBS"
+ AS_VAR_PUSHDEF([ac_var], [ac_cv_func_ext_$1])dnl
+ AC_CACHE_CHECK([for $1], ac_var,
+ [AC_LINK_IFELSE([AC_LANG_FUNC_LINK_TRY([$1])],
+ [AS_VAR_SET(ac_var, yes)],
+ [AS_VAR_SET(ac_var, no)])])
+ LIBS=$ac_check_func_ext_save_LIBS
+ AS_IF([test AS_VAR_GET(ac_var) = yes],
+ [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$1])) $3],
+ [$4])dnl
+AS_VAR_POPDEF([ac_var])dnl
+])# AC_CHECK_FUNC
+
+# AH_CHECK_FUNC_EXT(FUNCNAME)
+# ---------------------
+m4_define([AH_CHECK_FUNC_EXT],
+[AH_TEMPLATE(AS_TR_CPP(HAVE_$1),
+ [Define to 1 if you have the `]$1[' function.])])
+
dnl Define an AC_DEFINE with ifndef guard.
dnl AC_N_DEFINE(VARIABLE [, VALUE])
define(AC_N_DEFINE,