xmlrpc-c: Update to 1.51.03

Small Makefile reorganization.

Switch BUILD_PARALLEL to 1. Seems to work now.

Added nanosleep patch that replaces usleep usage.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/xmlrpc-c/patches/001-config.mk.in.patch

@@ -1,11 +0,0 @@
---- a/config.mk.in
-+++ b/config.mk.in
-@@ -176,7 +176,7 @@ ifeq ($(patsubst linux-gnu%,linux-gnu,$(
-   shlibfn = $(1:%=%.$(SHLIB_SUFFIX).$(MAJ).$(MIN))
-   shliblefn = $(1:%=%.$(SHLIB_SUFFIX))
- #  SHLIB_CLIB = -lc
--  LDFLAGS_SHLIB = -shared -Wl,-soname,$(SONAME) $(SHLIB_CLIB)
-+  LDFLAGS_SHLIB = -shared -Wl,-soname,$(SONAME) $(SHLIB_CLIB) $(LDFLAGS)
-   CFLAGS_SHLIB=-fPIC
- endif
- 

libs/xmlrpc-c/patches/002-automake-compat.patch

@@ -1,13 +0,0 @@
---- a/configure.in
-+++ b/configure.in
-@@ -223,9 +223,7 @@ dnl Checks for programs.
- dnl =======================================================================
- 
- AC_PROG_CC
--if test x"$enable_cplusplus" != xno; then
--    AC_PROG_CXX
--fi
-+AC_PROG_CXX
- 
- 
- dnl =======================================================================

libs/xmlrpc-c/patches/010-nanosleep.patch

@@ -0,0 +1,20 @@
+--- a/lib/libutil/sleep.c
++++ b/lib/libutil/sleep.c
+@@ -8,7 +8,7 @@
+ #  include <windows.h>
+ #  include <process.h>
+ #else
+-#  include <unistd.h>
++#  include <time.h>
+ #endif
+ 
+ 
+@@ -18,6 +18,7 @@ xmlrpc_millisecond_sleep(unsigned int const milliseconds) {
+ #if MSVCRT
+     SleepEx(milliseconds, true);
+ #else
+-    usleep(milliseconds * 1000);
++    const struct timespec req = {0, milliseconds * 1000 * 1000};
++    nanosleep(&req, NULL);
+ #endif
+ }