Check for le32toh, le64toh, htole64 individually.

It appears that at least some versions of endian.h in glibc do not have
the latter two, so check for and replace each one individually.
bz#3794, ok djm@

diff --git a/configure.ac b/configure.ac
index 9053a9a2bc9373444d4f7f28ad54fd91d910147f..57a8d1007d1a79517bb30c7921be3f4be113e007 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -536,6 +536,18 @@ AC_CHECK_HEADERS([ \
        wchar.h \
 ])
 
+AC_CHECK_DECLS([le32toh, le64toh, htole64], [], [], [
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_ENDIAN_H
+# include <endian.h>
+#endif
+])
+
 # On some platforms (eg SunOS4) sys/audit.h requires sys/[time|types|label.h]
 # to be included first.
 AC_CHECK_HEADERS([sys/audit.h], [], [], [

diff --git a/defines.h b/defines.h
index c1c21aba616eb0dac1e5782d54c0ab93fbc591ae..090f49f551332dd1d46aef7b7e080d8aa2a0cd28 100644 (file)
--- a/defines.h
+++ b/defines.h
@@ -646,7 +646,9 @@ struct winsize {
 # endif /* WORDS_BIGENDIAN */
 #endif /* BYTE_ORDER */
 
-#ifndef HAVE_ENDIAN_H
+#if (defined(HAVE_DECL_LE32TOH) && HAVE_DECL_LE32TOH == 0) || \
+    (defined(HAVE_DECL_LE64TOH) && HAVE_DECL_LE64TOH == 0) || \
+    (defined(HAVE_DECL_HTOLE64) && HAVE_DECL_HTOLE64 == 0)
 # define openssh_swap32(v)                                     \
        (uint32_t)(((uint32_t)(v) & 0xff) << 24 |               \
        ((uint32_t)(v) & 0xff00) << 8 |                         \
@@ -662,13 +664,25 @@ struct winsize {
        ((uint64_t)(v) & 0xff000000000000ULL) >> 40 |           \
        ((uint64_t)(v) & 0xff00000000000000ULL) >> 56)
 # ifdef WORDS_BIGENDIAN
-#  define le32toh(v) (openssh_swap32(v))
-#  define le64toh(v) (openssh_swap64(v))
-#  define htole64(v) (openssh_swap64(v))
+#  if defined(HAVE_DECL_LE32TOH) && HAVE_DECL_LE32TOH == 0
+#   define le32toh(v) (openssh_swap32(v))
+#  endif
+#  if defined(HAVE_DECL_LE64TOH) && HAVE_DECL_LE64TOH == 0
+#   define le64toh(v) (openssh_swap64(v))
+#  endif
+#  if defined(HAVE_DECL_HTOLE64) && HAVE_DECL_HTOLE64 == 0
+#   define htole64(v) (openssh_swap64(v))
+# endif
 # else
-#  define le32toh(v) ((uint32_t)v)
-#  define le64toh(v) ((uint64_t)v)
-#  define htole64(v) ((uint64_t)v)
+#  if defined(HAVE_DECL_LE32TOH) && HAVE_DECL_LE32TOH == 0
+#   define le32toh(v) ((uint32_t)v)
+#  endif
+#  if defined(HAVE_DECL_LE64TOH) && HAVE_DECL_LE64TOH == 0
+#    define le64toh(v) ((uint64_t)v)
+#  endif
+#  if defined(HAVE_DECL_HTOLE64) && HAVE_DECL_HTOLE64 == 0
+#   define htole64(v) ((uint64_t)v)
+#  endif
 # endif
 #endif