ltp-testsuite: fix build on uClibc exp10

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/ltp-testsuite/ltp-testsuite-20101031-fix-build-on-uClibc-exp10.patch

@@ -0,0 +1,22 @@
+Inspired by: http://peter.korsgaard.com/patches/alsa-utils/alsamixer-fix-build-on-uClibc-exp10.patch
+
+exp10 extension is not part of uClibc, so compute it.
+
+
+Signed-off-by: Samuel Martin <s.martin49@gmail.com>
+
+diff -purN ltp-testsuite-20101031.orig/testcases/realtime/lib/libstats.c ltp-testsuite-20101031/testcases/realtime/lib/libstats.c
+--- ltp-testsuite-20101031.orig/testcases/realtime/lib/libstats.c	2012-10-22 23:19:02.306646174 +0200
++++ ltp-testsuite-20101031/testcases/realtime/lib/libstats.c	2012-10-22 23:25:41.554847766 +0200
+@@ -46,6 +46,11 @@
+ #include <libstats.h>
+ #include <librttest.h>
+ 
++#ifdef __UCLIBC__
++/* 10^x = 10^(log e^x) = (e^x)^log10 = e^(x * log 10) */
++#define exp10(x) (exp((x) * log(10)))
++#endif /* __UCLIBC__ */
++
+ int save_stats = 0;
+ 
+ /* static helper functions */