// Returns NULL if version is certainly greater or equal than major.minor.micro
// Returns string describing the error if version is lower than
// major.minor.micro OR it cannot be determined and one should not rely on the
// availability of pango version major.minor.micro, nor the non-availability
const gchar *wx_pango_version_check (int major, int minor, int micro)
{
// NOTE: you don't need to use this macro to check for Pango features
// added in pango-1.4 or earlier since GTK 2.4 (our minimum requirement
// for GTK lib) required pango 1.4...
#ifdef __WXGTK3__
return pango_version_check(major, minor, micro);
#elif defined(PANGO_VERSION_MAJOR)
if (!gtk_check_version (2,11,0))
{
// GTK+ 2.11 requires Pango >= 1.15.3 and pango_version_check
// was added in Pango 1.15.2 thus we know for sure the pango lib we're
// using has the pango_version_check function:
return pango_version_check (major, minor, micro);
}
return "can't check";
#else // !PANGO_VERSION_MAJOR
wxUnusedVar(major);
wxUnusedVar(minor);
wxUnusedVar(micro);
return "too old headers";
#endif
}
static gchar *
sanity_check_pango (void)
{
#define PANGO_REQUIRED_MAJOR 1
#define PANGO_REQUIRED_MINOR 29
#define PANGO_REQUIRED_MICRO 4
const gchar *mismatch = pango_version_check (PANGO_REQUIRED_MAJOR,
PANGO_REQUIRED_MINOR,
PANGO_REQUIRED_MICRO);
if (mismatch)
{
const gint pango_major_version = pango_version () / 100 / 100;
const gint pango_minor_version = pango_version () / 100 % 100;
const gint pango_micro_version = pango_version () % 100;
return g_strdup_printf
("%s\n\n"
"GIMP requires Pango version %d.%d.%d or later.\n"
"Installed Pango version is %d.%d.%d.\n\n"
"Somehow you or your software packager managed\n"
"to install GIMP with an older Pango version.\n\n"
"Please upgrade to Pango version %d.%d.%d or later.",
mismatch,
PANGO_REQUIRED_MAJOR, PANGO_REQUIRED_MINOR, PANGO_REQUIRED_MICRO,
pango_major_version, pango_minor_version, pango_micro_version,
PANGO_REQUIRED_MAJOR, PANGO_REQUIRED_MINOR, PANGO_REQUIRED_MICRO);
}
#undef PANGO_REQUIRED_MAJOR
#undef PANGO_REQUIRED_MINOR
#undef PANGO_REQUIRED_MICRO
return NULL;
}
