Makefile: bugfix: shell quoting issue in macro.

* Makefile (SH): The $(1) macro argument is substituted into
a shell '...' quote. It may contain single quotes itself,
so these have to be mapped to the famous '\'' sequence.
Currently, only one SH call has '...' syntax in it: one
in the y.tab.c rule which calls sed -e '/yyparse/d'.
That works anyway, and the quotes could be removed from
it; but let's fix the SH macro.

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index b8cc40fb..108cdcc6 100644
--- a/Makefile
+++ b/Makefile
@@ -114,7 +114,7 @@ endef
 define SH
 $(if $(VERBOSE),                                        \
   $(1),                                                 \
-  $(V)cmd='$(1)' ;                                      \
+  $(V)cmd='$(subst ','\'',$(1))' ;                      \
   if ! eval "$$cmd" ; then                              \
     printf "make: failing command:\n%s\n" "$$cmd";      \
     exit 1;                                             \