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authorRich Felker <dalias@aerifal.cx>2012-05-04 00:13:23 -0400
committerRich Felker <dalias@aerifal.cx>2012-05-04 00:13:23 -0400
commit2dd8d5e1b8ba1118ff1782e96545cb8a2318592c (patch)
tree529419d70eedc4edbaae416c262806839ac3b630 /include/ftw.h
parentb4560a6da918ce3b63e87a78a3a3956f514e24ce (diff)
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add support for ugly *64 functions with _LARGEFILE64_SOURCE
musl does not support legacy 32-bit-off_t whatsoever. off_t is always
64 bit, and correct programs that use off_t and the standard functions
will just work out of the box. (on glibc, they would require
-D_FILE_OFFSET_BITS=64 to work.) however, some programs instead define
_LARGEFILE64_SOURCE and use alternate versions of all the standard
types and functions with "64" appended to their names.

we do not want code to actually get linked against these functions
(it's ugly and inconsistent), so macros are used instead of prototypes
with weak aliases in the library itself. eventually the weak aliases
may be added at the library level for the sake of using code that was
originally built against glibc, but the macros will still be the
desired solution in the headers.
Diffstat (limited to 'include/ftw.h')
-rw-r--r--include/ftw.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/ftw.h b/include/ftw.h
index 9bb38c77..ffbddfa7 100644
--- a/include/ftw.h
+++ b/include/ftw.h
@@ -32,6 +32,11 @@ struct FTW
 int ftw(const char *, int (*)(const char *, const struct stat *, int), int);
 int nftw(const char *, int (*)(const char *, const struct stat *, int, struct FTW *), int, int);
 
+#ifdef _LARGEFILE64_SOURCE
+#define ftw64 ftw
+#define nftw64 nftw
+#endif
+
 #ifdef __cplusplus
 }
 #endif