fix powerpc types to match abi, and some feature test issues

arch/powerpc/bits/alltypes.h.sh

@@ -16,9 +16,10 @@ union \1 \2;\
 #endif\
 /'
 
-TYPEDEF unsigned int size_t;
-TYPEDEF long ssize_t;
-TYPEDEF long ptrdiff_t;
+TYPEDEF unsigned size_t;
+TYPEDEF int ssize_t;
+TYPEDEF int ptrdiff_t;
+
 TYPEDEF __builtin_va_list va_list;
 
 #ifndef __cplusplus
@@ -52,8 +53,8 @@ TYPEDEF unsigned int       uint_fast16_t;
 TYPEDEF unsigned int       uint_fast32_t;
 TYPEDEF uint64_t           uint_fast64_t;
 
-TYPEDEF long          intptr_t;
-TYPEDEF unsigned long uintptr_t;
+TYPEDEF int intptr_t;
+TYPEDEF unsigned uintptr_t;
 
 TYPEDEF float float_t;
 TYPEDEF double double_t;

arch/powerpc/bits/limits.h

 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
- || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define PAGE_SIZE 4096
 #define LONG_BIT 32
 #endif

arch/powerpc/bits/mman.h

@@ -30,7 +30,7 @@
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
 
-#ifdef _GNU_SOURCE
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0
 #define MADV_RANDOM      1
 #define MADV_SEQUENTIAL  2