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author | Mark Adler <madler@alumni.caltech.edu> | 2012-02-01 23:47:47 -0800 |
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committer | Mark Adler <madler@alumni.caltech.edu> | 2012-02-01 23:55:29 -0800 |
commit | f9e4edc99629ae10e3cfd7091a4742e4e4e2dbec (patch) | |
tree | 096cbe47ab33ee0303add997657f8d891eef9210 /crc32.c | |
parent | 55b8b5fec16503cb9ce26074f600a1d7b426a0cc (diff) | |
download | zlib-f9e4edc99629ae10e3cfd7091a4742e4e4e2dbec.tar.gz |
Avoid library header include in crc32.c for Z_SOLO.
crc32.c was #including limits.h in order to find a four-byte integer
type. It was doing this even if Z_SOLO were defined, violating the
intent of Z_SOLO, which is to include no library headers and require
no library functions. Now crc32.c obeys the intent of Z_SOLO, but
with the downside that crc32() will be slower than when not compiled
with Z_SOLO. This can be remedied manually by typedefing u4 to a
known four-byte unsigned integer type, and #defining BYFOUR in
crc32.c.
Diffstat (limited to 'crc32.c')
-rw-r--r-- | crc32.c | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -33,6 +33,9 @@ #define local static /* Find a four-byte integer type for crc32_little() and crc32_big(). */ +#ifdef Z_SOLO +# define NOBYFOUR +#endif #ifndef NOBYFOUR # ifdef STDC /* need ANSI C limits.h to determine sizes */ # include <limits.h> |