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author | Mark Adler <madler@alumni.caltech.edu> | 2013-03-23 22:27:43 -0700 |
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committer | Mark Adler <madler@alumni.caltech.edu> | 2013-03-23 22:30:09 -0700 |
commit | 03ff48cc67937fbb026a7952c0351615ef9be4e5 (patch) | |
tree | 3050209fccaad5c9f29f9495f053f9dacde92d6f /configure | |
parent | 66fcefbb2fb867f3f941b71140532de8593f29d6 (diff) | |
download | zlib-03ff48cc67937fbb026a7952c0351615ef9be4e5.tar.gz |
Remove runtime check in configure for four-byte integer type.
That didn't work when cross-compiling. Simply rely on limits.h.
If a compiler does not have limits.h, then zconf.h.in should be
modified to define Z_U4 as an unsiged four-byte integer type in
order for crc32() to be fast.
This also simplifies and makes more portable to check for a four-
byte type using limits.h.
Diffstat (limited to 'configure')
-rwxr-xr-x | configure | 26 |
1 files changed, 0 insertions, 26 deletions
@@ -740,32 +740,6 @@ EOF fi fi -echo >> configure.log - -# find a four-byte unsiged integer type for crc calculations -cat > $test.c <<EOF -#include <stdio.h> -#define is32(n,t) for(n=1,k=0;n;n<<=1,k++);if(k==32){puts(t);return 0;} -int main() { - int k; - unsigned i; - unsigned long l; - unsigned short s; - is32(i, "unsigned") - is32(l, "unsigned long") - is32(s, "unsigned short") - return 1; -} -EOF -Z_U4="" -if try $CC $CFLAGS $test.c -o $test && Z_U4=`./$test` && test -n "$Z_U4"; then - sed < zconf.h "/#define Z_U4/s/\/\* \.\/configure may/#define Z_U4 $Z_U4 \/* .\/configure put the/" > zconf.temp.h - mv zconf.temp.h zconf.h - echo "Looking for a four-byte integer type... Found." | tee -a configure.log -else - echo "Looking for a four-byte integer type... Not found." | tee -a configure.log -fi - # show the results in the log echo >> configure.log echo ALL = $ALL >> configure.log |