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-rw-r--r--sys-freebsd/freebsd-lib/files/freebsd-lib-8.0-log2.patch21
1 files changed, 21 insertions, 0 deletions
diff --git a/sys-freebsd/freebsd-lib/files/freebsd-lib-8.0-log2.patch b/sys-freebsd/freebsd-lib/files/freebsd-lib-8.0-log2.patch
new file mode 100644
index 000000000000..a9fd18998287
--- /dev/null
+++ b/sys-freebsd/freebsd-lib/files/freebsd-lib-8.0-log2.patch
@@ -0,0 +1,21 @@
+log2 and log2f are required by C99 and are not implemented.
+Workaround the deficiency.
+
+--- lib/msun/src/math.h.old 2010-03-14 17:02:25.000000000 +0100
++++ lib/msun/src/math.h 2010-03-14 17:07:03.000000000 +0100
+@@ -203,6 +203,7 @@
+ double frexp(double, int *); /* fundamentally !__pure2 */
+ double ldexp(double, int);
+ double log(double);
++#define log2(x) log(x)/log(2.0)
+ double log10(double);
+ double modf(double, double *); /* fundamentally !__pure2 */
+
+@@ -319,6 +320,7 @@
+ float log10f(float);
+ float log1pf(float);
+ float logf(float);
++#define log2f(x) logf(x)/logf(2.0)
+ float modff(float, float *); /* fundamentally !__pure2 */
+
+ float powf(float, float);