Fix history procedures to specially handle null history. This
authorChris Hanson <org/chris-hanson/cph>
Wed, 17 Apr 2002 00:29:23 +0000 (00:29 +0000)
committerChris Hanson <org/chris-hanson/cph>
Wed, 17 Apr 2002 00:29:23 +0000 (00:29 +0000)
commit351a80e1ac12398238bcb67f1fc4c65082dc5774
tree2b09328222cfdf75b898a15d344be6b2b20ad116
parenta6fea99eb72bdb298c08c5ff33c9e926bdfee1ad
Fix history procedures to specially handle null history.  This
occasionally comes up with syntactic keywords.
v7/src/runtime/syntactic-closures.scm