feat: Loading compiler options from a configuration file

apps/amxxpc/src/amxxpc.cpp

@@ -22,7 +22,9 @@
 #include <cstdlib>
 
 #ifdef BUILD_STATIC_AMXXPC
+extern "C" {
     #include <sc.h>
+}
 extern "C" void Compile32(int argc, char** argv);
 #else
     #if defined(EMSCRIPTEN)
@@ -96,7 +98,7 @@ int main(const int argc, char** argv)
     pc_printf("Copyright (c) 2004-2013 AMX Mod X Team\n");
     pc_printf("Copyright (c) 2025 hlds.run Team\n\n");
 
-    if (argc < 2) {
+    if (argc < 2 && (strlen(argv[1]) <= 2 || strncmp(argv[1], "-T", 2) != 0)) {
         pc_printf("Usage: <file.sma> [options]\n");
         pc_printf("Use -? or --help to see full options\n\n");
         getchar();
@@ -337,6 +339,12 @@ char* FindFileName(const int argc, char** argv)
         return swiext(argv[save], "amx", 0);
     }
 
+    const char* file = pc_pop_first_source_file();
+
+    if (file != nullptr && *file != '\0') {
+        return swiext(file, "amx", 0);
+    }
+
     return nullptr;
 }
 
@@ -358,7 +366,8 @@ void show_help()
     printf("\t-l        create list file (preprocess only)\n");
     printf("\t-o<name>  set base name of output file\n");
     printf("\t-p<name>  set name of \"prefix\" file\n");
-    printf("\t-r[name]  write cross reference report to console or to specified file\n");
+    printf("\t-r<name>  write cross reference report to console or to specified file\n");
+    printf("\t-T<name>  set name of the configuration file to use\n");
     printf("\t-sui[+/-] show stack usage info\n");
     printf("\tsym=val   define constant \"sym\" with value \"val\"\n");
     printf("\tsym=      define constant \"sym\" with value 1\n");

libs/amxxpc32/src/libpawnc.c

@@ -129,6 +129,11 @@ int pc_error(const int number, const char* message, char* filename, const int fi
     return 0;
 }
 
+AMXXPC_API const char* pc_pop_first_source_file(void)
+{
+    return pop_first_source_file();
+}
+
 typedef struct src_file_s {
     FILE* fp;         // Set if writing.
     char* buffer;     // IO buffer.

libs/amxxpc32/src/sc.h

@@ -289,6 +289,14 @@ typedef struct s_valuepair {
 #define opcodes(n) ((n) * sizeof(cell)) /* opcode size */
 #define opargs(n) ((n) * sizeof(cell))  /* size of typical argument */
 
+/* general purpose macros */
+#if !defined sizearray
+    #define sizearray(a) (sizeof(a) / sizeof((a)[0]))
+#endif
+#if !defined makelong
+    #define makelong(low, high) ((long)(low) | ((long)(high) << (sizeof(long) * 4)))
+#endif
+
 /*  Tokens recognized by lex()
  *  Some of these constants are assigned as well to the variable "lastst"
  */
@@ -459,11 +467,14 @@ int pc_enablewarning(int number, int enable);
 #if PAWN_CELL_SIZE == 32
     #if defined __WIN32__ || defined _WIN32 || defined WIN32
 __declspec(dllexport) int pc_printf(const char* message, ...);
+__declspec(dllexport) const char* pc_pop_first_source_file(void);
     #else
-extern int __attribute__((visibility("default"))) pc_printf(const char* message, ...);
+__attribute__((visibility("default"))) extern int pc_printf(const char* message, ...);
+__attribute__((visibility("default"))) extern const char* pc_pop_first_source_file(void);
     #endif
 #else
 int pc_printf(const char* message, ...) INVISIBLE;
+const char* pc_pop_first_source_file(void) INVISIBLE;
 #endif
 
 /* error report function */
@@ -700,6 +711,7 @@ SC_FUNC int get_subst(int index, char** pattern, char** substitution);
 SC_FUNC stringpair* find_subst(const char* name, int length);
 SC_FUNC int delete_subst(const char* name, int length);
 SC_FUNC void delete_substtable(void);
+SC_FUNC const char* pop_first_source_file(void);
 SC_FUNC stringlist* insert_sourcefile(const char* string);
 SC_FUNC char* get_sourcefile(int index);
 SC_FUNC void delete_sourcefiletable(void);