rlog
rlog provides a message logging facility for C++.
You can find the project home for rlog at https://code.google.com/p/rlog/. Download the appropriate file and unpack, perhaps into your home directory. Create an environment variable for RLOG_HOME. Here’s an example:
| | export RLOG_HOME=/home/jeff/rlog-1.4 |
Under Ubuntu, you can build rlog using the following commands:
| | cd $RLOG_HOME |
| | ./configure |
| | make |
Under OS X, I was able to compile rlog only after applying a patch. See https://code.google.com/p/rlog/issues/detail?id=7 for information about the issue as well as the patch code. I used the code provided in the third comment (“This smaller diff...”). You can also find this patch code in the source distribution as code/wav/1/rlog.diff.
To apply the patch and build rlog, do the following:
| | cd $RLOG_HOME |
| | patch -p1 [path to file]/rlog.diff |
| | autoreconf |
| | ./configure |
| | cp /opt/local/bin/glibtool libtool |
| | make |
| | sudo make install |
The configure command copies a binary named libtool into the rlog directory, but it is not the binary that rlog expects. The command that copies glibtool atop libtool should correct this problem.
If the patch does not work for you, you can try making manual modifications. In the file $RLOG_HOME/rlog/common.h.in, you will find the following line:
| | # define RLOG_SECTION __attribute__ (( section("RLOG_DATA") )) |
Replace that line with the following:
| | #ifdef _APPLE_ |
| | # define RLOG_SECTION __attribute__ (( section("__DATA, RLOG_DATA") )) |
| | #else |
| | # define RLOG_SECTION __attribute__ (( section("RLOG_DATA") )) |
| | #endif |
If you still have problems building rlog (it’s quite the challenge under both MacOS and Windows), don’t worry. When working through the legacy code example, skip ahead to Creating a Test Double for rlog, where you’ll learn how to get rlog out of the mix entirely.