fix: necessary code changes for nix configurability

include/macros.h

@@ -1,6 +1,11 @@
 #ifndef MACROSH_
 #define MACROSH_
 
+// More like constants but I'm not making yet another header file just for this
+#ifndef LIDM_CONF_PATH
+  #define LIDM_CONF_PATH "/etc/lidm.ini"
+#endif
+
 // Do we just replace the compiler with clang??
 #if defined(__clang__)
   #define NULLABLE _Nullable

src/config.c

@@ -12,6 +12,7 @@
 #include "config.h"
 #include "desktop.h"
 #include "log.h"
+#include "macros.h"
 #include "util.h"
 
 #define UPPER_HALF_BYTE 4
@@ -241,9 +242,8 @@ int parse_config(struct config* NNULLABLE config, char* NNULLABLE path) {
   FILE* fd = fopen(path, "r");
   if (fd == NULL) {
     log_perror("fopen");
-    log_printf(
-        " [I] No config, place one at /etc/lidm.ini or set the LIDM_CONF "
-        "env variable");
+    log_printf(" [I] No config, place one at " LIDM_CONF_PATH
+               " or set the LIDM_CONF env variable");
     return 0; // Its fine now anyways
   }
 

src/main.c

@@ -75,7 +75,7 @@ int main(int argc, char* argv[]) {
   // Copy
   struct config config = DEFAULT_CONFIG;
   char* conf_override = getenv("LIDM_CONF");
-  char* conf_path = conf_override ? conf_override : "/etc/lidm.ini";
+  char* conf_path = conf_override ? conf_override : LIDM_CONF_PATH;
   if (parse_config(&config, conf_path) != 0) {
     (void)fputs("error parsing config\n", stderr);
     return 1;