make: use single ticks

Otherwise the shell will try to evaluate the parentheses.
7 years ago · 4c6b59b486
1 changed files with 1 additions and 1 deletions
--- a/Makefile.include
+++ b/Makefile.include
@ -179,7 +179,7 @@ ifeq ($(origin RIOT_VERSION), undefined)
      RIOT_VERSION := $(GIT_STRING)-$(GIT_BRANCH)
    endif
  else
-    RIOT_VERSION := "UNKNOWN (builddir: $(RIOTBASE))"
+    RIOT_VERSION := 'UNKNOWN (builddir: $(RIOTBASE))'
  endif
 endif