path: root/README
diff options
authorClifford Wolf <>2013-10-31 01:09:24 +0100
committerClifford Wolf <>2013-10-31 01:09:24 +0100
commitcc7986a3e57a05129b99cf02036f53c472c643b1 (patch)
tree9ebd3427134cb3d2fba57bd082d7b0aeb7f11119 /README
parent3fc6c9aac6b869a2f3cda3697fe76e78a887740f (diff)
Some additions to the README file
Diffstat (limited to 'README')
1 files changed, 19 insertions, 0 deletions
diff --git a/README b/README
index cf5fbdb1..8fdbf082 100644
--- a/README
+++ b/README
@@ -69,6 +69,7 @@ will install all prerequisites for building yosys:
$ sudo apt-get install libqt4-dev
$ sudo apt-get install mercurial
$ sudo apt-get install iverilog
+ $ sudo apt-get install graphviz
To configure the build system to use a specific set of compiler and
build configuration, use one of
@@ -89,6 +90,9 @@ To build Yosys simply type 'make' in this directory.
$ make test
$ sudo make install
+If you encounter any problems during build, make sure to check the section
+"Workarounds for known build problems" at the end of this README file.
To also build and install ABC (recommended) use the following commands:
$ make abc
@@ -258,6 +262,21 @@ Verilog Attributes and non-standard features
__YOSYS_ENABLE_DEFATTR__ must be set in order for this feature to be active.
+Workarounds for known build problems
+You might get an error message like this one during build when building with
+a recent version of gcc:
+ /usr/include/minisat/utils/Options.h:285:29: error:
+ unable to find string literal operator ‘operator"" PRIi64’
+This is a bug in the minisat header. It can be fixed by adding spaces before
+and after each occurance of PRIi64 in the header file:
+ sudo sed -i 's/PRIi64/ & /' /usr/include/minisat/utils/Options.h
TODOs / Open Bugs