commit c2720b2274e51eb76b91e5f6a5f2a82bdfaf8013 Author: Kathy Brade <brade@pearlcrescent.com> Date: Mon Aug 13 12:13:40 2018 -0400 Bug 26514 - intermittent updater failures on Win64 (Error 19) Avoid MinGW's _ftelli64() and _fseeki64() implementations because they are unreliable. --- modules/libmar/src/mar_private.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/modules/libmar/src/mar_private.h b/modules/libmar/src/mar_private.h index e0c263271ed0..358026fbcf50 100644 --- a/modules/libmar/src/mar_private.h +++ b/modules/libmar/src/mar_private.h @@ -55,8 +55,15 @@ MOZ_STATIC_ASSERT(sizeof(BLOCKSIZE) < \ instead of the NSPR equivalents. */ #ifdef XP_WIN #include <winsock2.h> +#ifdef __MINGW32__ +/* Avoid MinGW's _ftelli64() and _fseeki64() implementations because they + * are unreliable. See bug #26514. */ +#define ftello ftello64 +#define fseeko fseeko64 +#else #define ftello _ftelli64 #define fseeko _fseeki64 +#endif #else #define _FILE_OFFSET_BITS 64 #include <netinet/in.h>