+
+dnl this is used by the macro blow to general a proper config.h.in entry
+m4_define([LYX_AH_CHECK_DECL],
+[AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_$1),
+ [Define if you have the prototype for function `$1'])])
+
+dnl Check things are declared in headers to avoid errors or warnings.
+dnl Called like LYX_CHECK_DECL(function, header1 header2...)
+dnl Defines HAVE_DECL_{FUNCTION}
+AC_DEFUN([LYX_CHECK_DECL],
+[LYX_AH_CHECK_DECL($1)
+for ac_header in $2
+do
+ AC_MSG_CHECKING([if $1 is declared by header $ac_header])
+ AC_EGREP_HEADER($1, $ac_header,
+ [AC_MSG_RESULT(yes)
+ AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DECL_$1))
+ break],
+ [AC_MSG_RESULT(no)])
+done])
+
+dnl Extract the single digits from PACKAGE_VERSION and make them available.
+dnl Defines LYX_MAJOR_VERSION, LYX_MINOR_VERSION, LYX_RELEASE_LEVEL, and
+dnl LYX_RELEASE_PATCH, the latter being possibly equal to 0.
+AC_DEFUN([LYX_SET_VERSION_INFO],
+[lyx_major=`echo $PACKAGE_VERSION | sed -e 's/[[.]].*//'`
+ lyx_patch=`echo $PACKAGE_VERSION | sed -e "s/^$lyx_major//" -e 's/^.//'`
+ lyx_minor=`echo $lyx_patch | sed -e 's/[[.]].*//'`
+ lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_minor//" -e 's/^.//'`
+ lyx_release=`echo $lyx_patch | sed -e 's/[[^0-9]].*//'`
+ lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_release//" -e 's/^[[.]]//' -e 's/[[^0-9]].*//'`
+ test "x$lyx_patch" = "x" && lyx_patch=0
+ AC_SUBST(LYX_MAJOR_VERSION,$lyx_major)
+ AC_SUBST(LYX_MINOR_VERSION,$lyx_minor)
+ AC_SUBST(LYX_RELEASE_LEVEL,$lyx_release)
+ AC_SUBST(LYX_RELEASE_PATCH,$lyx_patch)
+])