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dnl ---------------------------------------------------------------------------
dnl Author: Francesco Montorsi
dnl Creation date: 14/9/2005
dnl RCS-ID: $Id$
dnl Purpose: Contains M4 macros intended to be used also by external
dnl projects which depends from a wxCode component
dnl ---------------------------------------------------------------------------
dnl ---------------------------------------------------------------------------
dnl WXCODE_SAVE_COREVAR()
dnl
dnl Saves the CPPFLAGS, CXXFLAGS, CFLAGS and LIBS variables in some helper
dnl variables which are used to restore them later (see AM_RESTORE_COREVAR)
dnl ---------------------------------------------------------------------------
AC_DEFUN([WXCODE_SAVE_COREVAR],
[
SAVED_CPPFLAGS="$CPPFLAGS"
SAVED_CXXFLAGS="$CXXFLAGS"
SAVED_CFLAGS="$CFLAGS"
SAVED_LIBS="$LIBS"
])
dnl ---------------------------------------------------------------------------
dnl WXCODE_RESTORE_COREVAR()
dnl
dnl Loads into the CPPFLAGS, CXXFLAGS, CFLAGS and LIBS variables the values
dnl of the helper variables set by AM_SAVE_COREVAR
dnl ---------------------------------------------------------------------------
AC_DEFUN([WXCODE_RESTORE_COREVAR],
[
CPPFLAGS="$SAVED_CPPFLAGS"
CXXFLAGS="$SAVED_CXXFLAGS"
CFLAGS="$SAVED_CFLAGS"
LIBS="$SAVED_LIBS"
])
dnl ---------------------------------------------------------------------------
dnl WXCODE_CHECKFOR_COMPONENT(
dnl [name (mixed case) of the component to check],
dnl [name of a header of the component to check (with 'wx/' prefix and '.h' suffix)],
dnl [name of the library of the component to check (without 'lib' prefix and without .a/.so suffix)],
dnl [a C++ line of code that forces the test program to be linked against the component in order to work],
dnl [action if found],
dnl [action if not found])
dnl
dnl Creates a little test program to check for presence of a wxCode component.
dnl Note that this macro does not automatically adds anything to the CPPFLAGS,
dnl CFLAGS or LIBS variables.
dnl ---------------------------------------------------------------------------
AC_DEFUN([WXCODE_CHECKFOR_COMPONENT],
[
dnl save original flags into support variables
WXCODE_SAVE_COREVAR()
dnl add to the compilation & link flags the wxWidgets flags
dnl (we assume they have been set by AM_WXPRESETS)
dnl
dnl NOTE: this is very important since the test program
dnl we will compile needs to be linked against wx
dnl and the configure script will use these *FLAGS
dnl variables and it cannot be told to use other flags.
dnl
dnl NOTE2: we don't want to put into *FLAGS variables the
dnl WX_* variable values since the Makefile.in for
dnl a wxpresets-based application already merges
dnl the *FLAGS contents with WX_* vars
dnl
dnl NOTE3: the CXXFLAGS are merged with CPPFLAGS and
dnl thus we don't need to add the WX_CPPFLAGS to both
CPPFLAGS="$CPPFLAGS $WX_CPPFLAGS"
CFLAGS="$CFLAGS $WX_CFLAGS_ONLY"
dnl before WX_LIBS we want the lib of the component to check
LIBS="$LIBS -l$3 $WX_LIBS"
dnl check for this component presence
if test -z "$COMPCHECK_MSG"; then
dnl allow customized messages
COMPCHECK_MSG="if $1 is available"
fi
AC_MSG_CHECKING([$COMPCHECK_MSG])
AC_LINK_IFELSE([
AC_LANG_PROGRAM([#include <$2>],
[$4])
],
[$1_PRESENCE=1], [$1_PRESENCE=0])
if test "$$1_PRESENCE" = "1"; then
AC_MSG_RESULT([yes])
$5
else
AC_MSG_RESULT([no])
$6
fi
dnl restore the original flags
WXCODE_RESTORE_COREVAR()
])
dnl ---------------------------------------------------------------------------
dnl WXCODE_CHECKFOR_COMPONENT_VERSION(
dnl [name (mixed case) of the component to check],
dnl [name of a header of the component to check (with 'wx/' prefix and '.h' suffix)],
dnl [name of the library of the component to check (without 'lib' prefix and without .a/.so suffix)],
dnl [a C++ line of code that forces the test program to be linked against the component in order to work],
dnl * [major-version.minor-version],
dnl * [versionsym-prefix],
dnl * [versionsym-postfix],
dnl [action if found],
dnl [action if not found])
dnl
dnl Like AM_WXCODE_CHECKFOR_COMPONENT (the only new arguments it takes are marked
dnl with *) but also includes a version check against the component to check for.
dnl Note that the given version MUST be composed of three digits separed by a dot,
dnl i.e. a string in form "1.2.3" which will be checked against the string
dnl
dnl [versionsym-prefix]MAJOR[versionsym-postfix].\
dnl [versionsym-prefix]MINOR[versionsym-postfix].\
dnl [versionsym-prefix]RELEASE[versionsym-postfix]
dnl
dnl where *MAJOR*, *MINOR* and *RELEASE* are three symbols which should have
dnl been #defined in the compdef.h header file (see template/include/wx/mycompdef.h).
dnl ---------------------------------------------------------------------------
AC_DEFUN([WXCODE_CHECKFOR_COMPONENT_VERSION],
[
dnl break version string in single digits
major=`echo $5 | sed 's/\([[0-9]]\).\([[0-9]]\).\([[0-9]]\)/\1/'`
minor=`echo $5 | sed 's/\([[0-9]]\).\([[0-9]]\).\([[0-9]]\)/\2/'`
release=`echo $5 | sed 's/\([[0-9]]\).\([[0-9]]\).\([[0-9]]\)/\3/'`
dnl cache the symbol names
majsym="$6""MAJOR""$7"
minsym="$6""MINOR""$7"
relsym="$6""RELEASE""$7"
dnl call our base macro adding the version check
COMPCHECK_MSG="if $1 (version >= $5) is available"
WXCODE_CHECKFOR_COMPONENT([$1], [$2], [$3],
[
$4
// version check
#if defined($majsym) && defined($minsym) && defined($relsym)
#if ($majsym > ($major) || \
($majsym == ($major) && $minsym > ($minor)) || \
($majsym == ($major) && $minsym == ($minor) && $relsym >= ($release)))
// this component is recent enough
#else
#error $1 is too old ! At least version $5 is required
#endif
#else
#error $1 does not define its version symbols $majsym, $minsym, $relsym
#endif
],
[$8], [$9])
])
dnl ---------------------------------------------------------------------------
dnl Deprecated macro wrappers
dnl ---------------------------------------------------------------------------
AC_DEFUN([AM_SAVE_COREVAR], [WXCODE_SAVE_COREVAR])
AC_DEFUN([AM_RESTORE_COREVAR], [WXCODE_RESTORE_COREVAR])
AC_DEFUN([AM_WXCODE_CHECKFOR_COMPONENT], [WXCODE_CHECKFOR_COMPONENT])
AC_DEFUN([AM_WXCODE_CHECKFOR_COMPONENT_VERSION], [WXCODE_CHECKFOR_COMPONENT_VERSION])
|
