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-rw-r--r--configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 7608d027515..df1d1c62471 100644
--- a/configure.in
+++ b/configure.in
@@ -2553,6 +2553,7 @@ AC_CHECK_HEADER(malloc/malloc.h, AC_DEFINE(HAVE_MALLOC_MALLOC_H, 1, [Define to 1
### Use Mac OS X Carbon API to implement GUI.
if test "${HAVE_CARBON}" = "yes"; then
AC_DEFINE(HAVE_CARBON, 1, [Define to 1 if you are using the Carbon API on Mac OS X.])
+ AC_CHECK_HEADERS(AvailabilityMacros.h)
## Specify the install directory
carbon_appdir=
if test "${carbon_appdir_x}" != ""; then