simplify packaging for libtls.

Derive the file list from the Makefile.am template itself (DRY), ensure
manpage is packaged with the final tarball.

dist.sh

@@ -3,5 +3,5 @@ set -e
 
 rm -f man/*.1 man/*.3
 ./autogen.sh
-./configure
+./configure --enable-libtls
 make dist

tls/Makefile.am.tpl

@@ -1,10 +1,17 @@
 include $(top_srcdir)/Makefile.am.common
 
+if ENABLE_LIBTLS
 lib_LTLIBRARIES = libtls.la
 
 libtls_la_LDFLAGS = -version-info libtls-version
 
 libtls_la_CFLAGS = $(CFLAGS) $(USER_CFLAGS)
-libtls_la_SOURCES =
-noinst_HEADERS =
 
+libtls_la_SOURCES = tls.c
+libtls_la_SOURCES += tls_client.c
+libtls_la_SOURCES += tls_config.c
+libtls_la_SOURCES += tls_server.c
+libtls_la_SOURCES += tls_util.c
+libtls_la_SOURCES += tls_verify.c
+noinst_HEADERS = tls_internal.h
+endif

update.sh

@@ -393,21 +393,10 @@ echo "EXTRA_DIST += testssl ca.pem server.pem" >> tests/Makefile.am
 )
 
 rm -f tls/*.c tls/*.h
-for i in tls_internal.h tls.c tls_server.c tls_client.c tls_util.c \
-    tls_config.c tls_verify.c; do
+for i in `awk '/SOURCES|HEADERS/ { print $3 }' tls/Makefile.am.tpl` ; do
 	cp $libtls_src/$i tls
 done
-(cd tls
-	sed -e "s/libtls-version/${libtls_version}/" Makefile.am.tpl > Makefile.am
-	echo "if ENABLE_LIBTLS" >> Makefile.am
-	for i in `ls -1 *.c|sort`; do
-		echo "libtls_la_SOURCES += $i" >> Makefile.am
-	done
-	for i in `ls -1 *.h|sort`; do
-		echo "noinst_HEADERS += $i" >> Makefile.am
-	done
-	echo "endif" >> Makefile.am
-)
+sed -e "s/libtls-version/${libtls_version}/" tls/Makefile.am.tpl > tls/Makefile.am
 
 # do not directly compile C files that are included in other C files
 crypto_excludes=(