sha1_file.c: Fix size_t related printf format warnings

The old way of fixing warnings did not succeed on MinGW.  MinGW
does not support C99 printf format strings for size_t [1].  But
gcc on MinGW issues warnings if C99 printf format is not used.
Hence, the old stragegy to avoid warnings fails.

[1] http://www.mingw.org/MinGWiki/index.php/C99

This commits passes arguments of type size_t through a tiny
helper functions that casts to the type expected by the format
string.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/sha1_file.c b/sha1_file.c
index 560c0e0d0881d77829d508ca28577f4b452906c6..b0c24356ae7358561300c9bb3a3f56ba502b2a3b 100644 (file)
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -25,8 +25,10 @@
 
 #ifdef NO_C99_FORMAT
 #define SZ_FMT "lu"
+static unsigned long sz_fmt(size_t s) { return (unsigned long)s; }
 #else
 #define SZ_FMT "zu"
+static size_t sz_fmt(size_t s) { return s; }
 #endif
 
 const unsigned char null_sha1[20];
@@ -423,9 +425,9 @@ void pack_report(void)
                "pack_report: getpagesize()            = %10" SZ_FMT "\n"
                "pack_report: core.packedGitWindowSize = %10" SZ_FMT "\n"
                "pack_report: core.packedGitLimit      = %10" SZ_FMT "\n",
-               (size_t) getpagesize(),
-               packed_git_window_size,
-               packed_git_limit);
+               sz_fmt(getpagesize()),
+               sz_fmt(packed_git_window_size),
+               sz_fmt(packed_git_limit));
        fprintf(stderr,
                "pack_report: pack_used_ctr            = %10u\n"
                "pack_report: pack_mmap_calls          = %10u\n"
@@ -435,7 +437,7 @@ void pack_report(void)
                pack_used_ctr,
                pack_mmap_calls,
                pack_open_windows, peak_pack_open_windows,
-               pack_mapped, peak_pack_mapped);
+               sz_fmt(pack_mapped), sz_fmt(peak_pack_mapped));
 }
 
 static int check_packed_git_idx(const char *path,  struct packed_git *p)