Avoid integer overflows in DWT. Fixes https://bugs.chromium.org/p/oss-fuzz/issues...

[openjpeg.git] / src / lib / openjp2 / opj_config_private.h.cmake.in

diff --git a/src/lib/openjp2/opj_config_private.h.cmake.in b/src/lib/openjp2/opj_config_private.h.cmake.in
index 97c9fdc5b5f367993cd1d1e93bd78f4b640b5382..c41f9066242d7318b89beab7a33132007cfff3fc 100644 (file)
--- a/src/lib/openjp2/opj_config_private.h.cmake.in
+++ b/src/lib/openjp2/opj_config_private.h.cmake.in
@@ -18,15 +18,22 @@
 #cmakedefine OPJ_HAVE_FSEEKO @OPJ_HAVE_FSEEKO@
 
 /* find whether or not have <malloc.h> */
-#cmakedefine HAVE_MALLOC_H
+#cmakedefine OPJ_HAVE_MALLOC_H
 /* check if function `aligned_alloc` exists */
-#cmakedefine HAVE_ALIGNED_ALLOC
+#cmakedefine OPJ_HAVE_ALIGNED_ALLOC
 /* check if function `_aligned_malloc` exists */
-#cmakedefine HAVE__ALIGNED_MALLOC
+#cmakedefine OPJ_HAVE__ALIGNED_MALLOC
 /* check if function `memalign` exists */
-#cmakedefine HAVE_MEMALIGN
+#cmakedefine OPJ_HAVE_MEMALIGN
 /* check if function `posix_memalign` exists */
-#cmakedefine HAVE_POSIX_MEMALIGN
+#cmakedefine OPJ_HAVE_POSIX_MEMALIGN
+
+#if !defined(_POSIX_C_SOURCE)
+#if defined(OPJ_HAVE_FSEEKO) || defined(OPJ_HAVE_POSIX_MEMALIGN)
+/* Get declarations of fseeko, ftello, posix_memalign. */
+#define _POSIX_C_SOURCE 200112L
+#endif
+#endif
 
 /* Byte order.  */
 /* All compilers that support Mac OS X define either __BIG_ENDIAN__ or