diff --git a/liba/Makefile b/liba/Makefile
index 42a8b3a50..aa2375c09 100644
--- a/liba/Makefile
+++ b/liba/Makefile
@@ -36,10 +36,10 @@ objs += $(addprefix liba/src/external/openbsd/, \
   s_floorf.o \
   s_roundf.o \
   s_scalbnf.o \
+  s_signgam.o \
   s_sinf.o \
   s_tanf.o \
   w_lgammaf.o \
-  gamma_extern_variable.o\
 )
 
 liba/src/external/openbsd/%.o: CFLAGS += -Iliba/src/external/openbsd/include -Wno-parentheses -Wno-implicit-function-declaration
diff --git a/liba/src/external/openbsd/gamma_extern_variable.c b/liba/src/external/openbsd/gamma_extern_variable.c
deleted file mode 100644
index ace49ea4c..000000000
--- a/liba/src/external/openbsd/gamma_extern_variable.c
+++ /dev/null
@@ -1,3 +0,0 @@
-/* The openbsd w_lgamma.c requieres at linking a symbol signgam */
-
-int signgam;
diff --git a/liba/src/external/openbsd/s_signgam.c b/liba/src/external/openbsd/s_signgam.c
new file mode 100644
index 000000000..cec0a5a75
--- /dev/null
+++ b/liba/src/external/openbsd/s_signgam.c
@@ -0,0 +1,4 @@
+/*	$OpenBSD: s_signgam.c,v 1.2 2015/01/20 04:41:01 krw Exp $	*/
+#include "math.h"
+#include "math_private.h"
+int signgam = 0;