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-rw-r--r--sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c b/sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c
index 90dae9325d..c7ebd7ebd8 100644
--- a/sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/mpn2ldbl.c
@@ -15,13 +15,17 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include "gmp.h"
-#include "gmp-impl.h"
 #include <ieee754.h>
 #include <errno.h>
 #include <float.h>
 #include <math.h>
 
+/* Need to set this when including gmp headers after system headers.  */
+#define HAVE_ALLOCA 1
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
 /* Convert a multi-precision integer of the needed number of bits (106
    for long double) and an integral power of two to a `long double' in
    IBM extended format.  */