Bug #1296: [trunk/22981] 64-bit issues on trunk in ext/zlib
http://redmine.ruby-lang.org/issues/show/1296

Author: Ollivier Robert
Status: Open, Priority: Normal
Category: ext, Target version: 1.9.1
ruby -v: ruby 1.9.2dev (2009-03-16) [i386-darwin9.6.0]

I've configured Ruby to be compiled in 64-bit mode under OS X 10.5.6 with gcc 4.2.  I get the following warnings in ext/zlib which are a bit worrying.

gcc-4.2 -I. -I../../.ext/include/i386-darwin9.6.0 -I../../../include -I../../../ext/zlib -DRUBY_EXTCONF_H=\"extconf.h\" -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -O -pipe -m64 -D_FILE_OFFSET_BITS=64 -O3 -g -Wall -Wno-unused-parameter -Wno-parentheses -Wno-missing-field-initializers -Wshorten-64-to-32 -Wpointer-arith -Wwrite-strings  -o zlib.o -c ../../../ext/zlib/zlib.c
../../../ext/zlib/zlib.c: In function °∆do_checksum°«:
../../../ext/zlib/zlib.c:300: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆zstream_expand_buffer°«:
../../../ext/zlib/zlib.c:457: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆zstream_shift_buffer°«:
../../../ext/zlib/zlib.c:550: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆zstream_passthrough_input°«:
../../../ext/zlib/zlib.c:631: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆zstream_run°«:
../../../ext/zlib/zlib.c:707: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆zstream_sync°«:
../../../ext/zlib/zlib.c:766: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:770: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆deflate_run°«:
../../../ext/zlib/zlib.c:1167: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆do_deflate°«:
../../../ext/zlib/zlib.c:1226: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆rb_deflate_set_dictionary°«:
../../../ext/zlib/zlib.c:1353: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆inflate_run°«:
../../../ext/zlib/zlib.c:1413: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆do_inflate°«:
../../../ext/zlib/zlib.c:1467: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆rb_inflate_inflate°«:
../../../ext/zlib/zlib.c:1499: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆rb_inflate_addstr°«:
../../../ext/zlib/zlib.c:1532: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆rb_inflate_sync°«:
../../../ext/zlib/zlib.c:1560: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆rb_inflate_set_dictionary°«:
../../../ext/zlib/zlib.c:1602: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_read_raw_ensure°«:
../../../ext/zlib/zlib.c:1838: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:1839: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:1841: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_read_raw_until_zero°«:
../../../ext/zlib/zlib.c:1859: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_make_header°«:
../../../ext/zlib/zlib.c:1923: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:1926: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:1930: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_make_footer°«:
../../../ext/zlib/zlib.c:1944: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_read_header°«:
../../../ext/zlib/zlib.c:1998: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:2001: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:2008: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:2015: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_read_more°«:
../../../ext/zlib/zlib.c:2078: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_calc_crc°«:
../../../ext/zlib/zlib.c:2089: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:2093: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzfile_getc°«:
../../../ext/zlib/zlib.c:2235: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆rb_gzwriter_write°«:
../../../ext/zlib/zlib.c:2817: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆rb_gzreader_ungetc°«:
../../../ext/zlib/zlib.c:3147: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c: In function °∆gzreader_gets°«:
../../../ext/zlib/zlib.c:3246: warning: implicit conversion shortens 64-bit value into a 32-bit value
../../../ext/zlib/zlib.c:3272: warning: implicit conversion shortens 64-bit value into a 32-bit value
cc -dynamic -bundle -undefined suppress -flat_namespace -o ../../.ext/i386-darwin9.6.0/zlib.bundle zlib.o -L. -L../.. -L. -m64 -L/usr/local/lib    -lz  -lpthread -ldl -lobjc


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