[PATCH] Support for NO_OPENSSL

Support for completely OpenSSL-less builds. FSF considers distributing GPL
binaries with OpenSSL linked in as a legal problem so this is trouble
e.g. for Debian, or some people might not want to install OpenSSL
anyway. If you

	make NO_OPENSSL=1

you get completely OpenSSL-less build, disabling --merge-order and using
Mozilla's SHA1 implementation.

Ported from Cogito.

Signed-off-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Makefile b/Makefile
index f11fddd..d7d4182 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -83,7 +83,7 @@ LIB_H=cache.h object.h blob.h tree.h commit.h tag.h delta.h epoch.h csum-file.h
        pack.h pkt-line.h refs.h
 LIB_OBJS=read-cache.o sha1_file.o usage.o object.o commit.o tree.o blob.o \
         tag.o date.o index.o diff-delta.o patch-delta.o entry.o path.o \
-        epoch.o refs.o csum-file.o pack-check.o pkt-line.o connect.o ident.o
+        refs.o csum-file.o pack-check.o pkt-line.o connect.o ident.o
 
 LIB_H += rev-cache.h
 LIB_OBJS += rev-cache.o
@@ -105,6 +105,12 @@ LIB_OBJS += server-info.o
 LIBS = $(LIB_FILE)
 LIBS += -lz
 
+ifndef NO_OPENSSL
+       LIB_OBJS += epoch.o
+else
+       CFLAGS += '-DNO_OPENSSL'
+       MOZILLA_SHA1=1
+endif
 ifdef MOZILLA_SHA1
   SHA1_HEADER="mozilla-sha1/sha1.h"
   LIB_OBJS += mozilla-sha1/sha1.o

diff --git a/rev-list.c b/rev-list.c
index 846aa2f..83a604a 100644 (file)
--- a/rev-list.c
+++ b/rev-list.c
@@ -548,9 +548,13 @@ int main(int argc, char **argv)
                        sort_in_topological_order(&list);
                show_commit_list(list);
        } else {
+#ifndef NO_OPENSSL
                if (sort_list_in_merge_order(list, &process_commit)) {
-                         die("merge order sort failed\n");
+                       die("merge order sort failed\n");
                }
+#else
+               die("merge order sort unsupported, OpenSSL not linked");
+#endif
        }
 
        return 0;