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-rw-r--r--include/libbb.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h
index f743bdf..c896e54 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -713,6 +713,14 @@ extern void *xmalloc_read(int fd, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
extern void *xmalloc_open_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
/* Never returns NULL */
extern void *xmalloc_xopen_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC;
+
+#define SEAMLESS_COMPRESSION (0 \
+ || ENABLE_FEATURE_SEAMLESS_XZ \
+ || ENABLE_FEATURE_SEAMLESS_LZMA \
+ || ENABLE_FEATURE_SEAMLESS_BZ2 \
+ || ENABLE_FEATURE_SEAMLESS_GZ \
+ || ENABLE_FEATURE_SEAMLESS_Z)
+
/* Autodetects gzip/bzip2 formats. fd may be in the middle of the file! */
#if ENABLE_FEATURE_SEAMLESS_LZMA \
|| ENABLE_FEATURE_SEAMLESS_BZ2 \