Just after a clone I'm getting this:
~/zstd/zlibWrapper$ cc -c zstd_zlibwrapper.o gz*.c -lz -lzstd -DSTDC
gzwrite.c: In function ‘gz_write’:
gzwrite.c:226:43: error: ‘z_uInt’ undeclared (first use in this
function); did you mean ‘uInt’?
226 | state.state->strm.avail_in = (z_uInt)n;
| ^~~~~~
| uInt
gzwrite.c:226:43: note: each undeclared identifier is reported only
once for each function it appears in
gzwrite.c:226:50: error: expected ‘;’ before ‘n’
226 | state.state->strm.avail_in = (z_uInt)n;
| ^
| ;
z_uInt is never used directly, zconf.h redefines uInt to z_uInt under
the condition that Z_PREFIX is set. All examples use uInt, and the type
of avail_in is also uInt.
In this commit I modify the cast to refer to the same type as the type
of lvalue.
Arguably, the real fix here is to handle possible overflows, but that's
beyond the scope of this commit.
In zlib 1.2.12 the OF macro was changed to _Z_OF breaking any
project that used zlibWrapper. To fix this the OF has been
changed to _Z_OF everywhere and _Z_OF is defined as OF in the
case it is not yet defined for zlib 1.2.11 and older.
Fixes: https://github.com/facebook/zstd/issues/3216
