stdint.h:228:25: error: typedef redefinition with different types ('int16_t' (aka 'short') vs 'int')

[psumbera]

Bugzilla Link	39400
Version	6.0
OS	Solaris

Extended Description

$ clang --version
Oracle Solaris clang version 3.8.1 (tags/RELEASE_381/final) (based on LLVM 3.8.1)
Target: x86_64-pc-solaris2.11
Thread model: posix
InstalledDir: /usr/bin

$ cat test.c
#include <stdlib.h>
#include <stdint.h>
$ clang -ffreestanding -c test.c
In file included from test.c:2:
/usr/lib/amd64/clang/6.0.1/include/stdint.h:228:25: error: typedef redefinition with different types ('int16_t' (aka 'short') vs 'int')
typedef __int_least16_t int_fast16_t;
^
/usr/include/sys/int_types.h:116:15: note: previous definition is here
typedef int int_fast16_t;
^
In file included from test.c:2:
/usr/lib/amd64/clang/6.0.1/include/stdint.h:229:26: error: typedef redefinition with different types ('uint16_t' (aka 'unsigned short') vs 'unsigned int')
typedef __uint_least16_t uint_fast16_t;
^
/usr/include/sys/int_types.h:127:23: note: previous definition is here
typedef unsigned int uint_fast16_t;
^
In file included from test.c:2:
/usr/lib/amd64/clang/6.0.1/include/stdint.h:235:23: error: typedef redefinition with different types ('signed char' vs 'char')
typedef INT8_TYPE int8_t;
^
/usr/include/sys/int_types.h:51:16: note: previous definition is here
typedef char int8_t;
^
3 errors generated.

[psumbera]

$ clang --version
Oracle Solaris clang version 3.8.1 (tags/RELEASE_381/final) (based on LLVM
3.8.1)
Target: x86_64-pc-solaris2.11
Thread model: posix
InstalledDir: /usr/bin

Opss. It should have been:

clang version 6.0.1 (tags/RELEASE_601/final)
Target: x86_64-pc-solaris2.11
Thread model: posix
InstalledDir: /usr/bin

[psumbera]

When I compare Clang to GCC I see:

$ clang -E -dM - < /dev/null |grep INT_FAST16_TYPE
#define INT_FAST16_TYPE short
$ gcc -E -dM - < /dev/null |grep INT_FAST16_TYPE
#define INT_FAST16_TYPE int

GCC has in stdint-gcc.h:
typedef INT_FAST16_TYPE int_fast16_t;