Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
make[2]: *** [Makefile:860: all] Error 2

crash build failed

make[1]: *** [Makefile:266: gdb_merge] Error 1
The primary error message indicates a failure in the all target of the Makefile, specifically at line 860. This suggests that a command or script invoked at that point encountered an error.

The subsequent errors in the make hierarchy point to a broader issue, possibly related to the gdb_merge target. This target might be involved in merging or processing GDB-related files or configurations.