package/pigpio: install to staging

The pigpio package installs programs and libraries to target, but does
not install the libraries and its headers to staging, while they may
be used by other packages. Let's install them, as was requested in bug

Fixes:

  https://bugs.busybox.net/show_bug.cgi?id=11741

Cc: vishalbhalani89@gmail.com
Cc: ivan.nazarenko@gmail.com
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/pigpio/pigpio.mk

@@ -8,6 +8,7 @@ PIGPIO_VERSION = 68
 PIGPIO_SITE = $(call github,joan2937,pigpio,V$(PIGPIO_VERSION))
 PIGPIO_LICENSE = Unlicense
 PIGPIO_LICENSE_FILES = UNLICENCE
+PIGPIO_INSTALL_STAGING = YES
 
 define PIGPIO_BUILD_CMDS
 	$(TARGET_MAKE_ENV) $(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D)
@@ -22,4 +23,13 @@ define PIGPIO_INSTALL_TARGET_CMDS
 	$(INSTALL) -D -m 0755 $(@D)/libpigpiod_if2.so $(TARGET_DIR)/usr/lib/libpigpiod_if2.so
 endef
 
+define PIGPIO_INSTALL_STAGING_CMDS
+	$(INSTALL) -D -m 0755 $(@D)/libpigpio.so $(STAGING_DIR)/usr/lib/libpigpio.so
+	$(INSTALL) -D -m 0755 $(@D)/libpigpiod_if.so $(STAGING_DIR)/usr/lib/libpigpiod_if.so
+	$(INSTALL) -D -m 0755 $(@D)/libpigpiod_if2.so $(STAGING_DIR)/usr/lib/libpigpiod_if2.so
+	$(INSTALL) -D -m 0644 $(@D)/pigpio.h $(STAGING_DIR)/usr/include/pigpio.h
+	$(INSTALL) -D -m 0644 $(@D)/pigpiod_if.h $(STAGING_DIR)/usr/include/pigpiod_if.h
+	$(INSTALL) -D -m 0644 $(@D)/pigpiod_if2.h $(STAGING_DIR)/usr/include/pigpiod_if2.h
+endef
+
 $(eval $(generic-package))