package/proj: add an option to build and install apps

The proj package includes command line applications. Those have always
been disabled in Buildroot. Those applications can be useful for
scripting, and also for runtime testing the libraries.

This commit adds a package Kconfig option to enable those apps.

Tested-by: Zoltan Gyarmati <zgyarmati@zgyarmati.de>
Acked-by: Zoltan Gyarmati <zgyarmati@zgyarmati.de>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/proj/Config.in

@@ -14,6 +14,18 @@ config BR2_PACKAGE_PROJ
 
 	  http://proj4.org/
 
+if BR2_PACKAGE_PROJ
+
+config BR2_PACKAGE_PROJ_APPS
+	bool "build apps"
+	select BR2_PACKAGE_LIBCURL
+	help
+	  Build and install proj command line apps. Those command line
+	  applications are: cct, cs2cs, geod, gie, invgeod, invproj,
+	  proj, projinfo, projsync.
+
+endif
+
 comment "proj needs a toolchain w/ C++, gcc >= 4.7, NPTL, wchar"
 	depends on !BR2_INSTALL_LIBSTDCPP || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || \

package/proj/proj.mk

@@ -20,7 +20,7 @@ PROJ_CXXFLAGS += -O0
 endif
 
 PROJ_CONF_OPTS = \
-	-DBUILD_APPS=OFF \
+	-DBUILD_APPS=$(if $(BR2_PACKAGE_PROJ_APPS),ON,OFF) \
 	-DCMAKE_C_FLAGS="$(PROJ_CFLAGS)" \
 	-DCMAKE_CXX_FLAGS="$(PROJ_CXXFLAGS)"