add libssl-dev to requirements for Ubuntu/Debian
Running op-build on Ubuntu 16.04 without having libssl-dev installed leads to
the following error:
scripts/sign-file.c:25:30: fatal error: openssl/opensslv.h: No such file or directory
This commit adds the libssl-dev package to the dependencies for Ubuntu/Debian
systems.
diff --git a/README.md b/README.md
index ea8a65e..f92d572 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@
sudo apt-get install cscope ctags libz-dev libexpat-dev \
python language-pack-en texinfo \
build-essential g++ git bison flex unzip \
- libxml-simple-perl libxml-sax-perl libxml2-dev libxml2-utils xsltproc \
+ libssl-dev libxml-simple-perl libxml-sax-perl libxml2-dev libxml2-utils xsltproc \
wget bc
### Dependencies for *64-bit* Fedora systems