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-rw-r--r--lang/gauche/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/lang/gauche/Makefile b/lang/gauche/Makefile
index 4f92477450fb..f20c0a8d4263 100644
--- a/lang/gauche/Makefile
+++ b/lang/gauche/Makefile
@@ -23,6 +23,8 @@ GAUCHE_ENCODING?= utf-8
# breaks in ext/uvecor.c on some locales
MAKE_ENV= LANG=C
+# avoids a problem with with ccache's pre-processor optimization
+MAKE_ENV+= CCACHE_CPP2=1
#INFOSECTION= The Algorithmic Language Scheme