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-rw-r--r--Makefile.pre.in5
1 files changed, 4 insertions, 1 deletions
diff --git a/Makefile.pre.in b/Makefile.pre.in
index d1ea4e2..16cb0fa 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -56,7 +56,10 @@ MAKESETUP= $(srcdir)/Modules/makesetup
OPT= @OPT@
BASECFLAGS= @BASECFLAGS@
CFLAGS= $(BASECFLAGS) $(OPT)
-CPPFLAGS= -I. -I$(srcdir)/Include
+# Both CPPFLAGS and LDFLAGS need to contain the shell's value for setup.py to
+# be able to build extension modules using the directories specified in the
+# environment variables
+CPPFLAGS= -I. -I$(srcdir)/Include @CPPFLAGS@
LDFLAGS= @LDFLAGS@
LDLAST= @LDLAST@
SGI_ABI= @SGI_ABI@