diff options
| -rw-r--r-- | configure.in | 3 | ||||
| -rw-r--r-- | pango/opentype/hb-blob.c | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/configure.in b/configure.in index 1ba72c87..fb4a7abc 100644 --- a/configure.in +++ b/configure.in @@ -602,7 +602,8 @@ AM_CONDITIONAL(DYNAMIC_TIBETAN_FC, echo $dynamic_modules | egrep '(^|,)tibetan-f # We use flockfile to implement pango_getline() - should be moved to GLib # strtok_r isn't present on some systems # -AC_CHECK_FUNCS(flockfile strtok_r) +# mprotect is for HarfBuzz +AC_CHECK_FUNCS(flockfile strtok_r mprotect) dnl ************************** dnl *** Checks for gtk-doc *** diff --git a/pango/opentype/hb-blob.c b/pango/opentype/hb-blob.c index 69390495..178bc8e1 100644 --- a/pango/opentype/hb-blob.c +++ b/pango/opentype/hb-blob.c @@ -28,8 +28,12 @@ #include "hb-blob.h" +#ifdef HAVE_MPROTECT +#ifdef HAVE_UNISTD_H #include <unistd.h> +#endif /* HAVE_UNISTD_H */ #include <sys/mman.h> +#endif /* HAVE_MPROTECT */ struct _hb_blob_t { hb_reference_count_t ref_count; @@ -240,6 +244,7 @@ hb_blob_try_writeable_inplace (hb_blob_t *blob) hb_mutex_lock (blob->lock); +#ifdef HAVE_MPROTECT if (blob->mode == HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITEABLE) { unsigned int pagesize, mask, length; const char *addr; @@ -281,6 +286,9 @@ hb_blob_try_writeable_inplace (hb_blob_t *blob) addr, addr+length, length); #endif } +#else /* !HAVE_MPROTECT */ +#warning "No way to make readonly memory writeable. This is suboptimal." +#endif done: mode = blob->mode; |