Merge pull request #1257 from RT-Thread/fix_libc

rename fls to __rt_fls in MMC.

components/drivers/include/drivers/mmcsd_core.h

@@ -185,7 +185,7 @@ struct rt_mmcsd_req {
  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
 
-rt_inline rt_uint32_t fls(rt_uint32_t val)
+rt_inline rt_uint32_t __rt_fls(rt_uint32_t val)
 {
 	rt_uint32_t  bit = 32;
 

components/drivers/sdio/mmcsd_core.c

@@ -548,7 +548,7 @@ rt_uint32_t mmcsd_select_voltage(struct rt_mmcsd_host *host, rt_uint32_t ocr)
 
 static void mmcsd_power_up(struct rt_mmcsd_host *host)
 {
-    int bit = fls(host->valid_ocr) - 1;
+    int bit = __rt_fls(host->valid_ocr) - 1;
 
     host->io_cfg.vdd = bit;
     if (controller_is_spi(host))

components/finsh/msh.c

@@ -405,7 +405,10 @@ void msh_auto_complete_path(char *path)
     ptr = path;
     for (;;)
     {
-        if (*ptr == '/') index = ptr + 1; if (!*ptr) break; ptr ++;
+        if (*ptr == '/') index = ptr + 1; 
+        if (!*ptr) break; 
+
+        ptr ++;
     }
     if (index == RT_NULL) index = path;
 

components/libc/Kconfig

@@ -29,4 +29,10 @@ if RT_USING_LIBC && RT_USING_DFS
     endif
 endif
 
+config HAVE_SYS_SIGNALS
+    bool "Toolchains/libc has sigval/sigevent structure definitions"
+    default n
+    help
+        Toolchains/libc has sigval/sigevent/siginfo_t definitions.
+
 endmenu