Use system libtomcrypt/libtommath if available. Doesn't currently

build due to clash in rsa_key identifier.

--HG--
extra : convert_revision : c9a4726d1c89e17ee8e96801d1aaa8049216aae1

Makefile.in

@@ -16,6 +16,12 @@ endif
 LTC=libtomcrypt/libtomcrypt.a
 LTM=libtommath/libtommath.a
 
+ifeq (@BUNDLED_LIBTOM@, 1)
+LIBTOM_DEPS=$(LTC) $(LTM)
+CFLAGS+=-I$(srcdir)/libtomcrypt/src/headers/ 
+LIBS+=$(LTC) $(LTM)
+endif
+
 COMMONOBJS=dbutil.o buffer.o \
 		dss.o bignum.o \
 		signkey.o rsa.o random.o \
@@ -70,8 +76,8 @@ RANLIB=@RANLIB@
 STRIP=@STRIP@
 INSTALL=@INSTALL@
 CPPFLAGS=@CPPFLAGS@
-CFLAGS=-I. -I$(srcdir) -I$(srcdir)/libtomcrypt/src/headers/ $(CPPFLAGS) @CFLAGS@
-LIBS=$(LTC) $(LTM) @LIBS@
+CFLAGS=-I. -I$(srcdir) $(CPPFLAGS) @CFLAGS@
+LIBS+=@LIBS@
 LDFLAGS=@LDFLAGS@
 
 EXEEXT=@EXEEXT@
@@ -107,10 +113,6 @@ ifeq ($(SCPPROGRESS), 1)
 	CFLAGS+=-DPROGRESS_METER
 endif
 
-#%: $(HEADERS)
-#%: $(HEADERS) Makefile
-# TODO
-
 all: $(TARGETS)
 
 strip: $(TARGETS)
@@ -154,8 +156,7 @@ dbclient: $(dbclientobjs)
 dropbearkey: $(dropbearkeyobjs)
 dropbearconvert: $(dropbearconvertobjs)
 
-dropbear dbclient dropbearkey dropbearconvert: $(HEADERS)  $(LTC) $(LTM) \
-													Makefile
+dropbear dbclient dropbearkey dropbearconvert: $(HEADERS) $(LIBTOM_DEPS) Makefile
 	$(CC) $(LDFLAGS) -o $@$(EXEEXT) $($@objs) $(LIBS)
 
 # scp doesn't use the libs so is special.
@@ -172,7 +173,7 @@ endif
 
 dropbearmulti: multilink 
 
-multibinary: $(HEADERS) $(MULTIOBJS) $(LTC) $(LTM) Makefile
+multibinary: $(HEADERS) $(MULTIOBJS) $(LIBTOM_DEPS) Makefile
 	$(CC) $(LDFLAGS) -o dropbearmulti$(EXEEXT) $(MULTIOBJS) $(LIBS)
 
 multilink: multibinary $(addprefix link, $(PROGRAMS))

configure.in

@@ -363,6 +363,23 @@ AC_CHECK_FUNCS(endutxent getutxent getutxid getutxline pututxline )
 AC_CHECK_FUNCS(setutxent utmpxname)
 AC_CHECK_FUNCS(logout updwtmp logwtmp)
 
+AC_ARG_ENABLE(bundled-libtom,
+	[  --enable-bundled-libtom       Use bundled libtomcrypt/libtommath even if a system version exists],
+	[ 
+		AC_MSG_NOTICE(use bundled)
+		AC_DEFINE(BUNDLED_LIBTOM,,Use bundled libtom) 
+		BUNDLED_LIBTOM=1
+	],
+	[
+		AC_MSG_NOTICE(not bundled)
+		BUNDLED_LIBTOM=0
+		AC_CHECK_LIB(tomcrypt, register_cipher, , BUNDLED_LIBTOM=1)
+		AC_CHECK_LIB(tommath, mp_exptmod, , BUNDLED_LIBTOM=1)
+	]
+)
+
+AC_SUBST(BUNDLED_LIBTOM)
+
 dnl Added from OpenSSH 3.6.1p2's configure.ac
 
 dnl allow user to disable some login recording features
@@ -671,5 +688,13 @@ AC_CONFIG_HEADER(config.h)
 AC_OUTPUT(Makefile)
 AC_OUTPUT(libtomcrypt/Makefile)
 AC_OUTPUT(libtommath/Makefile)
+
+AC_MSG_NOTICE()
+if test $BUNDLED_LIBTOM = 1 ; then
+AC_MSG_NOTICE(Using bundled libtomcrypt and libtommath)
+else
+AC_MSG_NOTICE(Using system libtomcrypt and libtommath)
+fi
+
 AC_MSG_NOTICE()
 AC_MSG_NOTICE(Now edit options.h to choose features.)

includes.h

@@ -120,8 +120,14 @@
 #include <libgen.h>
 #endif
 
+#ifdef BUNDLED_LIBTOM
 #include "libtomcrypt/src/headers/tomcrypt.h"
 #include "libtommath/tommath.h"
+#else
+#include <tomcrypt.h>
+#include <tommath.h>
+#endif
+
 
 #include "compat.h"
 #include "fake-rfc2553.h"