Fix build error when no IPO warning suppression flags are supported

kmurray · kmurray · commit 4b56960b29cd · 2019-06-21T11:10:16.000-04:00
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -185,7 +185,7 @@ foreach(flag ${FLEX_BISON_WARN_SUPPRESS_FLAGS_TO_CHECK})
 endforeach()
 
 #Suppress IPO link warnings
-set(IPO_LINK_WARN_SUPRESS_FLAGS "")
+set(IPO_LINK_WARN_SUPRESS_FLAGS " ")
 set(IPO_LINK_WARN_SUPRESS_FLAGS_TO_CHECK 
     "-Wno-null-dereference"
     )

Original file line number	Diff line number	Diff line change
`@@ -185,7 +185,7 @@ foreach(flag ${FLEX_BISON_WARN_SUPPRESS_FLAGS_TO_CHECK})`
`185`	`185`	`endforeach()`
`186`	`186`
`187`	`187`	`#Suppress IPO link warnings`
`188`		`-set(IPO_LINK_WARN_SUPRESS_FLAGS "")`
	`188`	`+set(IPO_LINK_WARN_SUPRESS_FLAGS " ")`
`189`	`189`	`set(IPO_LINK_WARN_SUPRESS_FLAGS_TO_CHECK`
`190`	`190`	`"-Wno-null-dereference"`
`191`	`191`	`)`