Remove 'defined' within macro

This removes the use of a macro containing the pre-processor 'defined'
operator.  It is unclear whether this is valid; a macro which
"generates" 'defined' is not permitted, but the use of the work
"generates" within the C90 standard seems to imply more than simple
substitution of an expression itself containing a well-formed defined
operation.

Signed-off-by: John Bowler <jbowler@acm.org>
This commit is contained in:
John Bowler 2016-12-26 16:24:40 -08:00
parent d65a92b951
commit 13a354f81e

View File

@ -4010,8 +4010,11 @@ check_interlace_type(int const interlace_type)
# define do_own_interlace 1
#endif /* WRITE_INTERLACING tests */
#define CAN_WRITE_INTERLACE\
PNG_LIBPNG_VER >= 10700 || defined PNG_WRITE_INTERLACING_SUPPORTED
#if PNG_LIBPNG_VER >= 10700 || defined PNG_WRITE_INTERLACING_SUPPORTED
# define CAN_WRITE_INTERLACE 1
#else
# define CAN_WRITE_INTERLACE 0
#endif
/* Do the same thing for read interlacing; this controls whether read tests do
* their own de-interlace or use libpng.