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-rw-r--r--sysdeps/mach/configure.ac9
1 files changed, 9 insertions, 0 deletions
diff --git a/sysdeps/mach/configure.ac b/sysdeps/mach/configure.ac
index db85f47eae..00b660c550 100644
--- a/sysdeps/mach/configure.ac
+++ b/sysdeps/mach/configure.ac
@@ -6,6 +6,11 @@ if test "x$MIG" = xMISSING; then
 fi
 LIBC_CONFIG_VAR([MIG], [$MIG])
 
+if test -n "$sysheaders"; then
+  OLD_CPPFLAGS=$CPPFLAGS
+  CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
+fi
+
 ### Sanity checks for Mach header installation
 AC_CHECK_HEADER(mach/mach_types.h,,
                 [AC_MSG_ERROR([cannot find Mach headers])], -)
@@ -124,3 +129,7 @@ if test $hurd_cv_mig_retcode = yes; then
 fi])
 
 hurd_MIG_RETCODE
+
+if test -n "$sysheaders"; then
+  CPPFLAGS=$OLD_CPPFLAGS
+fi