Use %I64* formats with MinGW instead of %ll* formats

The MSVC runtime uses the format specified %I64 for 64-bit data types;
It does not understand e.g. %llu for unsigned long longs.

However, mingw-w64 provides a compatibility mode in its runtime wrapper
which can be activated by defining the constant __USE_MINGW_ANSI_STDIO=1
in which case we must refrain from overriding the %ll* formats.

This fixes quite a couple of compile warnings when building with the
mingw-w64 compiler.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

1 files changed, 8 insertions, 1 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 9313a557a..0bc8cf29e 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -252,6 +252,13 @@ PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
         : ((T)1 << (sizeof(T)*8-1)) \
         )
 
+#if ENABLE_PLATFORM_MINGW32 && \
+        (!defined(__USE_MINGW_ANSI_STDIO) || !__USE_MINGW_ANSI_STDIO)
+#define LL_FMT "I64"
+#else
+#define LL_FMT "ll"
+#endif
+
 /* Large file support */
 /* Note that CONFIG_LFS=y forces bbox to be built with all common ops
  * (stat, lseek etc) mapped to "largefile" variants by libc.
@@ -277,7 +284,7 @@ typedef unsigned long long uoff_t;
 #  define XATOOFF(a) xatoull_range((a), 0, LLONG_MAX)
 #  define BB_STRTOOFF bb_strtoull
 #  define STRTOOFF strtoull
-#  define OFF_FMT "ll"
+#  define OFF_FMT LL_FMT
 # endif
 #else
 /* CONFIG_LFS is off */