* tests/atconfig.in (CPPFLAGS): Fix.

[bison.git] / tests / atconfig.in

diff --git a/tests/atconfig.in b/tests/atconfig.in
index 29d893b2a5e7e7a36a0506ae4c33b25e0acb88cc..3d1bb7892121c7b7a6aef559c591249a8a9be96b 100644 (file)
--- a/tests/atconfig.in
+++ b/tests/atconfig.in
@@ -85,7 +85,9 @@ M4='@M4@'
 # We need a C compiler.
 CC='@CC@'
 CFLAGS='@CFLAGS@'
-CPPFLAGS='-I@top_srcdir@ @CPPFLAGS@'
+
+# We need `config.h'.
+CPPFLAGS="-I$at_top_builddir @CPPFLAGS@"
 
 # We want to use the files shipped with Bison.
 BISON_SIMPLE=$at_top_srcdir/src/bison.simple