The concept of endianness seems to be somewhat newfangled, so the

respective conversion functions are not yet properly standardized.
Rumour has it that POSIX is working on it, though.
For now, sprinkle some configuration glue.

1 files changed, 22 insertions, 1 deletions

diff --git a/configure b/configure
index 64ba1a91..1aa95cc5 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $Id: configure,v 1.49 2016/08/02 11:09:46 schwarze Exp $
+# $Id: configure,v 1.50 2016/08/05 23:15:08 schwarze Exp $
 #
 # Copyright (c) 2014, 2015, 2016 Ingo Schwarze <schwarze@openbsd.org>
 #
@@ -50,6 +50,7 @@ BUILD_CGI=0
 
 HAVE_DIRENT_NAMLEN=
 HAVE_EFTYPE=
+HAVE_ENDIAN=
 HAVE_ERR=
 HAVE_FTS=
 HAVE_GETLINE=
@@ -57,6 +58,7 @@ HAVE_GETSUBOPT=
 HAVE_ISBLANK=
 HAVE_MKDTEMP=
 HAVE_NANOSLEEP=
+HAVE_NTOHL=
 HAVE_OHASH=
 HAVE_PATH_MAX=
 HAVE_PLEDGE=
@@ -72,6 +74,7 @@ HAVE_STRLCPY=
 HAVE_STRPTIME=
 HAVE_STRSEP=
 HAVE_STRTONUM=
+HAVE_SYS_ENDIAN=
 HAVE_VASPRINTF=
 HAVE_WCHAR=
 
@@ -197,6 +200,8 @@ get_locale() {
 
 # --- library functions ---
 runtest dirent-namlen	DIRENT_NAMLEN	|| true
+runtest be32toh		ENDIAN		|| true
+runtest be32toh		SYS_ENDIAN	-DSYS_ENDIAN || true
 runtest EFTYPE		EFTYPE		|| true
 runtest err		ERR		|| true
 runtest fts		FTS		|| true
@@ -204,6 +209,7 @@ runtest getline		GETLINE		|| true
 runtest getsubopt	GETSUBOPT	|| true
 runtest isblank		ISBLANK		|| true
 runtest mkdtemp		MKDTEMP		|| true
+runtest ntohl		NTOHL		|| true
 runtest PATH_MAX	PATH_MAX	|| true
 runtest pledge		PLEDGE		|| true
 runtest sandbox_init	SANDBOX_INIT	|| true
@@ -220,6 +226,14 @@ runtest strsep		STRSEP		|| true
 runtest strtonum	STRTONUM	|| true
 runtest vasprintf	VASPRINTF	|| true
 
+if [ ${HAVE_ENDIAN} -eq 0 -a \
+     ${HAVE_SYS_ENDIAN} -eq 0 -a \
+     ${HAVE_NTOHL} -eq 0 ]; then
+	echo "FATAL: no endian conversion functions found" 1>&2
+	echo "FATAL: no endian conversion functions found" 1>&3
+	exit 1
+fi
+
 # --- wide character and locale support ---
 if get_locale; then
 	runtest wchar WCHAR -DUTF8_LOCALE=\"${UTF8_LOCALE}\" || true
@@ -296,15 +310,21 @@ echo "#define MANPATH_DEFAULT \"${MANPATH_DEFAULT}\""
 [ -n "${HOMEBREWDIR}" ] && echo "#define HOMEBREWDIR \"${HOMEBREWDIR}\""
 [ ${HAVE_EFTYPE} -eq 0 ] && echo "#define EFTYPE EINVAL"
 [ ${HAVE_PATH_MAX} -eq 0 ] && echo "#define PATH_MAX 4096"
+if [ ${HAVE_ENDIAN} -eq 0 -a ${HAVE_SYS_ENDIAN} -eq 0 ]; then
+	echo "#define be32toh ntohl"
+	echo "#define htobe32 htonl"
+fi
 
 cat << __HEREDOC__
 #define HAVE_DIRENT_NAMLEN ${HAVE_DIRENT_NAMLEN}
+#define HAVE_ENDIAN ${HAVE_ENDIAN}
 #define HAVE_ERR ${HAVE_ERR}
 #define HAVE_FTS ${HAVE_FTS}
 #define HAVE_GETLINE ${HAVE_GETLINE}
 #define HAVE_GETSUBOPT ${HAVE_GETSUBOPT}
 #define HAVE_ISBLANK ${HAVE_ISBLANK}
 #define HAVE_MKDTEMP ${HAVE_MKDTEMP}
+#define HAVE_NTOHL ${HAVE_NTOHL}
 #define HAVE_PLEDGE ${HAVE_PLEDGE}
 #define HAVE_PROGNAME ${HAVE_PROGNAME}
 #define HAVE_REALLOCARRAY ${HAVE_REALLOCARRAY}
@@ -318,6 +338,7 @@ cat << __HEREDOC__
 #define HAVE_STRPTIME ${HAVE_STRPTIME}
 #define HAVE_STRSEP ${HAVE_STRSEP}
 #define HAVE_STRTONUM ${HAVE_STRTONUM}
+#define HAVE_SYS_ENDIAN ${HAVE_SYS_ENDIAN}
 #define HAVE_VASPRINTF ${HAVE_VASPRINTF}
 #define HAVE_WCHAR ${HAVE_WCHAR}
 #define HAVE_OHASH ${HAVE_OHASH}