Avoid -Wundef warnings for PNG_ARM_NEON_IMPLEMENTATION

Define this symbol as 0 instead of leaving it undefined when not using
ARM NEON optimizations.

No real changes, but just avoid a bunch of

"PNG_ARM_NEON_IMPLEMENTATION" is not defined, evaluates to 0 [-Wundef]

warnings when building the library.
This commit is contained in:
Vadim Zeitlin 2020-02-04 22:48:25 +01:00
parent 5668fc8fd6
commit 8cb5f8f158

View File

@ -185,6 +185,8 @@
/* Use the intrinsics code by default. */ /* Use the intrinsics code by default. */
# define PNG_ARM_NEON_IMPLEMENTATION 1 # define PNG_ARM_NEON_IMPLEMENTATION 1
# endif # endif
#else /* PNG_ARM_NEON_OPT == 0 */
# define PNG_ARM_NEON_IMPLEMENTATION 0
#endif /* PNG_ARM_NEON_OPT > 0 */ #endif /* PNG_ARM_NEON_OPT > 0 */
#ifndef PNG_MIPS_MSA_OPT #ifndef PNG_MIPS_MSA_OPT