Define POSIX macro to have strdup

https://github.com/profanity-im/profanity/commit/98c38dc6d6d29333c63f80327774f094610d8602
sets C99 as standard.

strdup() is not part of C99.

For now set `-D_POSIX_C_SOURCE=200809L` macro to have strdup() in C99.
Using `gnu99` instead would be another option.

We should take more care to use glib functions whenever possible.

Regards https://github.com/profanity-im/profanity/issues/1357

2 files changed, 6 insertions, 4 deletions

diff --git a/src/ui/inputwin.c b/src/ui/inputwin.c
index f3383986..6a1a6f48 100644
--- a/src/ui/inputwin.c
+++ b/src/ui/inputwin.c
@@ -503,10 +503,10 @@ _inp_rl_startup_hook(void)
     rl_variable_bind("disable-completion", "on");
 
     // check for and load ~/.config/profanity/inputrc
-    char *inputrc = files_get_inputrc_file();
+    gchar *inputrc = files_get_inputrc_file();
     if (inputrc) {
         rl_read_init_file(inputrc);
-        free(inputrc);
+        g_free(inputrc);
     }
 
     return 0;
diff --git a/src/ui/tray.c b/src/ui/tray.c
index d327fc1c..6d79b379 100644
--- a/src/ui/tray.c
+++ b/src/ui/tray.c
@@ -79,13 +79,15 @@ _get_icons(void)
 
 #endif /* ICONS_PATH */
 
-    char *icons_dir_s = files_get_config_path(DIR_ICONS);
+    gchar *icons_dir_s = files_get_config_path(DIR_ICONS);
     icons_dir = g_string_new(icons_dir_s);
-    free(icons_dir_s);
+    g_free(icons_dir_s);
     GError *err = NULL;
+
     if (!g_file_test(icons_dir->str, G_FILE_TEST_IS_DIR)) {
         return;
     }
+
     GDir *dir = g_dir_open(icons_dir->str, 0, &err);
     if (dir) {
         GString *name = g_string_new(g_dir_read_name(dir));