ast2firm: Implement casting from complex to real types.

[cparser] / README.md

diff --git a/README.md b/README.md
index 9397ab2..31e7ea8 100644 (file)
--- a/README.md
+++ b/README.md
@@ -17,13 +17,23 @@ Requirements:
 
 * A C99 compiler (gcc and icc are known to work).
 * pkg-config (recommended)
-* libFirm-1.12.1 or later
+* libFirm-1.21 or later
 
 Make sure you have installed libFirm and pkg-config can find the libfirm.pc
 files ("pkg-config --modversion libfirm" should work). Use (GNU)-make to build
 cparser.
 
-3. Contact
+3. Troubleshooting
+------------------
+
+x86\_64 Systems:
+libFirm uses a 32bit x86 backend by default, while it also uses the systems
+default preprocessor/linker. This results on a x86\_64 linker being used
+for 32bit assembly. If you see assembler errors like
+"suffix or operand invalid for 'push'", then you probably have this problem.
+Use the -m32 flag to force usage of system 32bit preprocessor/linker.
+
+4. Contact
 ----------
 
 There's a Bugtracker at http://pp.info.uni-karlsruhe.de/~firm/bugs