examples: add option to build examples as library

Usefull when examples are build on RTOS where binary loader
is not available.

Signed-off-by: Michał Łyszczek <michal.lyszczek@bofc.pl>

6 files changed, 24 insertions, 0 deletions

diff --git a/examples/print-memory.c b/examples/print-memory.c
index 77c6b42..8a360fe 100644
--- a/examples/print-memory.c
+++ b/examples/print-memory.c
@@ -5,7 +5,11 @@
 
 #include "embedlog.h"
 
+#ifdef EMBEDLOG_DEMO_LIBRARY
+int el_demo_print_memory(void)
+#else
 int main(void)
+#endif
 {
 	char   s[] = "some message\0that contains\0null characters";
 	char   ascii[128];
diff --git a/examples/print-options.c b/examples/print-options.c
index 621e92e..1fb2bcb 100644
--- a/examples/print-options.c
+++ b/examples/print-options.c
@@ -14,7 +14,11 @@ void too_long_function_to_present_trimming_but_it_could_be_impossible()
 	el_print(ELN, "trimmed (I hope) function name");
 }
 
+#ifdef EMBEDLOG_DEMO_LIBRARY
+int el_demo_print_options(void)
+#else
 int main(void)
+#endif
 {
 	struct el  opts;
 
diff --git a/examples/print-simple.c b/examples/print-simple.c
index 4c28751..0c679f8 100644
--- a/examples/print-simple.c
+++ b/examples/print-simple.c
@@ -5,7 +5,11 @@
 
 #include "embedlog.h"
 
+#ifdef EMBEDLOG_DEMO_LIBRARY
+int el_demo_print_simple(void)
+#else
 int main(void)
+#endif
 {
 	/* first we nned to initialize logger to known state, embedlog
 	 * will print to stdout by default */
diff --git a/examples/print-thread-safe.c b/examples/print-thread-safe.c
index b8813d4..d1d3c55 100644
--- a/examples/print-thread-safe.c
+++ b/examples/print-thread-safe.c
@@ -5,7 +5,11 @@
 
 #include "embedlog.h"
 
+#ifdef EMBEDLOG_DEMO_LIBRARY
+int el_demo_print_thread_safe(void)
+#else
 int main(void)
+#endif
 {
 	el_init();
 
diff --git a/examples/print-to-file.c b/examples/print-to-file.c
index b141e47..68d5b26 100644
--- a/examples/print-to-file.c
+++ b/examples/print-to-file.c
@@ -11,7 +11,11 @@
 
 #define WORKDIR "/tmp/embedlog-example"
 
+#ifdef EMBEDLOG_DEMO_LIBRARY
+int el_demo_print_to_file(void)
+#else
 int main(void)
+#endif
 {
 	el_init();
 	el_option(EL_TS, EL_TS_LONG);
diff --git a/examples/print-tty.c b/examples/print-tty.c
index e483c14..ec90d01 100644
--- a/examples/print-tty.c
+++ b/examples/print-tty.c
@@ -6,7 +6,11 @@
 #include "embedlog.h"
 #include <termios.h>
 
+#ifdef EMBEDLOG_DEMO_LIBRARY
+int el_demo_print_tty(void)
+#else
 int main(void)
+#endif
 {
 	/* first we nned to initialize logger to known state */
 	el_init();