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ctype.c: Fix a sparse warning

In particular, sparse complains as follows:

        SP ctype.c
    ctype.c:30:12: warning: symbol 'tolower_trans_tbl' was not declared.\
         Should it be static?

An appropriate extern declaration for the 'tolower_trans_tbl' symbol
is included in the "cache.h" header file. In order to suppress the
warning, therefore, we could replace the "git-compat-util.h" header
inclusion with "cache.h", since "cache.h" includes "git-compat-util.h"
in turn. Here, however, we choose to move the extern declaration for
'tolower_trans_tbl' into "git-compat-util.h", alongside the other
extern declaration from ctype.c for 'sane_ctype'.

Signed-off-by: Ramsay Jones <>
Signed-off-by: Junio C Hamano <>
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commit f1589d100796c58615033dde10c1c6446b814357 1 parent accccde
Ramsay Jones authored gitster committed
Showing with 3 additions and 3 deletions.
  1. +0 −3  cache.h
  2. +3 −0  git-compat-util.h
3  cache.h
@@ -1258,7 +1258,4 @@ extern struct startup_info *startup_info;
/* builtin/merge.c */
int checkout_fast_forward(const unsigned char *from, const unsigned char *to);
-/* in ctype.c, for kwset users */
-extern const char tolower_trans_tbl[256];
#endif /* CACHE_H */
3  git-compat-util.h
@@ -457,6 +457,9 @@ static inline int has_extension(const char *filename, const char *ext)
return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
+/* in ctype.c, for kwset users */
+extern const char tolower_trans_tbl[256];
/* Sane ctype - no locale, and works with signed chars */
#undef isascii
#undef isspace
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