Correct whitespace in path detection, and turn it into a fatal error

jedisct1 · jedisct1 · commit 03b5f7d5a4ff · 2016-06-15T09:55:36.000+02:00
diff --git a/configure.ac b/configure.ac
@@ -40,8 +40,8 @@ LX_CFLAGS=${CFLAGS-NONE}
 
 dnl Path check
 
-AS_IF([test pwd | fgrep ' ' > /dev/null 2>&1],
-  [AC_MSG_WARN([The build directory contains whitespaces - This can cause tests/installation to fail due to limitations of some libtool versions])]
+AS_IF([pwd | fgrep ' ' > /dev/null 2>&1],
+  [AC_MSG_ERROR([The build directory contains whitespaces - This can cause tests/installation to fail due to limitations of some libtool versions])]
 )
 
 dnl Switches

Original file line number	Diff line number	Diff line change
`@@ -40,8 +40,8 @@ LX_CFLAGS=${CFLAGS-NONE}`
`40`	`40`
`41`	`41`	`dnl Path check`
`42`	`42`
`43`		`-AS_IF([test pwd \| fgrep ' ' > /dev/null 2>&1],`
`44`		`- [AC_MSG_WARN([The build directory contains whitespaces - This can cause tests/installation to fail due to limitations of some libtool versions])]`
	`43`	`+AS_IF([pwd \| fgrep ' ' > /dev/null 2>&1],`
	`44`	`+ [AC_MSG_ERROR([The build directory contains whitespaces - This can cause tests/installation to fail due to limitations of some libtool versions])]`
`45`	`45`	`)`
`46`	`46`
`47`	`47`	`dnl Switches`