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-rw-r--r--lib/mkmf.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 63cb6182e2..b035670466 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -1982,6 +1982,7 @@ cxxflags = #{CONFIG['cxxflags']}
optflags = #{CONFIG['optflags']}
debugflags = #{CONFIG['debugflags']}
warnflags = #{$warnflags}
+cppflags = #{CONFIG['cppflags']}
CCDLFLAGS = #{$static ? '' : CONFIG['CCDLFLAGS']}
CFLAGS = $(CCDLFLAGS) #$CFLAGS $(ARCH_FLAG)
INCFLAGS = -I. #$INCFLAGS