Build Linux-only functions only on Linux

components/battery.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <limits.h>
 #include <stdio.h>
 #include <string.h>
@@ -54,3 +55,4 @@ battery_state(const char *bat)
 	}
 	return (i == LEN(map)) ? "?" : map[i].symbol;
 }
+#endif

components/cpu.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <stdio.h>
 #include <string.h>
 
@@ -61,3 +62,4 @@ cpu_iowait(void)
 
 	return bprintf("%d", perc);
 }
+#endif

components/entropy.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <stdio.h>
 
 #include "../util.h"
@@ -11,3 +12,4 @@ entropy(void)
 	return (pscanf("/proc/sys/kernel/random/entropy_avail", "%d", &num) == 1) ?
 	               bprintf("%d", num) : NULL;
 }
+#endif

components/ip.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <err.h>
 #include <ifaddrs.h>
 #include <netdb.h>
@@ -68,3 +69,4 @@ ipv6(const char *iface)
 
 	return NULL;
 }
+#endif

components/ram.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <stdio.h>
 
 #include "../util.h"
@@ -50,3 +51,4 @@ ram_used(void)
 	       bprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024) :
 	       NULL;
 }
+#endif

components/swap.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <err.h>
 #include <stdio.h>
 #include <string.h>
@@ -134,3 +135,4 @@ swap_used(void)
 
 	return bprintf("%f", (float)(total - free - cached) / 1024 / 1024);
 }
+#endif

components/temperature.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <stdio.h>
 
 #include "../util.h"
@@ -11,3 +12,4 @@ temp(const char *file)
 	return (pscanf(file, "%d", &temp) == 1) ?
 	       bprintf("%d", temp / 1000) : NULL;
 }
+#endif

components/uptime.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <sys/sysinfo.h>
 
 #include "../util.h"
@@ -16,3 +17,4 @@ uptime(void)
 
 	return bprintf("%dh %dm", h, m);
 }
+#endif

components/volume.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <err.h>
 #include <fcntl.h>
 #include <sys/soundcard.h>
@@ -41,3 +42,4 @@ vol_perc(const char *card)
 
 	return bprintf("%d", v & 0xff);
 }
+#endif

components/wifi.c

@@ -1,4 +1,5 @@
 /* See LICENSE file for copyright and license details. */
+#ifdef __linux__
 #include <err.h>
 #include <ifaddrs.h>
 #include <linux/wireless.h>
@@ -88,3 +89,4 @@ wifi_essid(const char *iface)
 	else
 		return id;
 }
+#endif