List -subtarget in `odin help build`

src/main.cpp

@@ -2364,20 +2364,20 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-build-mode:<mode>")) {
 			print_usage_line(2, "Sets the build mode.");
 			print_usage_line(2, "Available options:");
-			print_usage_line(3, "-build-mode:exe         Builds as an executable.");
-			print_usage_line(3, "-build-mode:test        Builds as an executable that executes tests.");
-			print_usage_line(3, "-build-mode:dll         Builds as a dynamically linked library.");
-			print_usage_line(3, "-build-mode:shared      Builds as a dynamically linked library.");
-			print_usage_line(3, "-build-mode:dynamic     Builds as a dynamically linked library.");
-			print_usage_line(3, "-build-mode:lib         Builds as a statically linked library.");
-			print_usage_line(3, "-build-mode:static      Builds as a statically linked library.");
-			print_usage_line(3, "-build-mode:obj         Builds as an object file.");
-			print_usage_line(3, "-build-mode:object      Builds as an object file.");
-			print_usage_line(3, "-build-mode:assembly    Builds as an assembly file.");
-			print_usage_line(3, "-build-mode:assembler   Builds as an assembly file.");
-			print_usage_line(3, "-build-mode:asm         Builds as an assembly file.");
-			print_usage_line(3, "-build-mode:llvm-ir     Builds as an LLVM IR file.");
-			print_usage_line(3, "-build-mode:llvm        Builds as an LLVM IR file.");
+				print_usage_line(3, "-build-mode:exe         Builds as an executable.");
+				print_usage_line(3, "-build-mode:test        Builds as an executable that executes tests.");
+				print_usage_line(3, "-build-mode:dll         Builds as a dynamically linked library.");
+				print_usage_line(3, "-build-mode:shared      Builds as a dynamically linked library.");
+				print_usage_line(3, "-build-mode:dynamic     Builds as a dynamically linked library.");
+				print_usage_line(3, "-build-mode:lib         Builds as a statically linked library.");
+				print_usage_line(3, "-build-mode:static      Builds as a statically linked library.");
+				print_usage_line(3, "-build-mode:obj         Builds as an object file.");
+				print_usage_line(3, "-build-mode:object      Builds as an object file.");
+				print_usage_line(3, "-build-mode:assembly    Builds as an assembly file.");
+				print_usage_line(3, "-build-mode:assembler   Builds as an assembly file.");
+				print_usage_line(3, "-build-mode:asm         Builds as an assembly file.");
+				print_usage_line(3, "-build-mode:llvm-ir     Builds as an LLVM IR file.");
+				print_usage_line(3, "-build-mode:llvm        Builds as an LLVM IR file.");
 		}
 	}
 
@@ -2386,16 +2386,16 @@ gb_internal int print_show_help(String const arg0, String command, String option
 			print_usage_line(2, "Defines a library collection used for imports.");
 			print_usage_line(2, "Example: -collection:shared=dir/to/shared");
 			print_usage_line(2, "Usage in Code:");
-			print_usage_line(3, "import \"shared:foo\"");
+				print_usage_line(3, "import \"shared:foo\"");
 		}
 
 		if (print_flag("-custom-attribute:<string>")) {
 			print_usage_line(2, "Add a custom attribute which will be ignored if it is unknown.");
 			print_usage_line(2, "This can be used with metaprogramming tools.");
 			print_usage_line(2, "Examples:");
-			print_usage_line(3, "-custom-attribute:my_tag");
-			print_usage_line(3, "-custom-attribute:my_tag,the_other_thing");
-			print_usage_line(3, "-custom-attribute:my_tag -custom-attribute:the_other_thing");
+				print_usage_line(3, "-custom-attribute:my_tag");
+				print_usage_line(3, "-custom-attribute:my_tag,the_other_thing");
+				print_usage_line(3, "-custom-attribute:my_tag -custom-attribute:the_other_thing");
 		}
 	}
 
@@ -2418,7 +2418,7 @@ gb_internal int print_show_help(String const arg0, String command, String option
 			print_usage_line(2, "Defines a scalar boolean, integer or string as global constant.");
 			print_usage_line(2, "Example: -define:SPAM=123");
 			print_usage_line(2, "Usage in code:");
-			print_usage_line(3, "#config(SPAM, default_value)");
+				print_usage_line(3, "#config(SPAM, default_value)");
 		}
 	}
 
@@ -2453,9 +2453,9 @@ gb_internal int print_show_help(String const arg0, String command, String option
 	if (check) {
 		if (print_flag("-error-pos-style:<string>")) {
 			print_usage_line(2, "Available options:");
-			print_usage_line(3, "-error-pos-style:unix      file/path:45:3:");
-			print_usage_line(3, "-error-pos-style:odin      file/path(45:3)");
-			print_usage_line(3, "-error-pos-style:default   (Defaults to 'odin'.)");
+				print_usage_line(3, "-error-pos-style:unix      file/path:45:3:");
+				print_usage_line(3, "-error-pos-style:odin      file/path(45:3)");
+				print_usage_line(3, "-error-pos-style:default   (Defaults to 'odin'.)");
 		}
 
 		if (print_flag("-export-defineables:<filename>")) {
@@ -2466,8 +2466,8 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-export-dependencies:<format>")) {
 			print_usage_line(2, "Exports dependencies to one of a few formats. Requires `-export-dependencies-file`.");
 			print_usage_line(2, "Available options:");
-			print_usage_line(3, "-export-dependencies:make   Exports in Makefile format");
-			print_usage_line(3, "-export-dependencies:json   Exports in JSON format");
+				print_usage_line(3, "-export-dependencies:make   Exports in Makefile format");
+				print_usage_line(3, "-export-dependencies:json   Exports in JSON format");
 		}
 
 		if (print_flag("-export-dependencies-file:<filename>")) {
@@ -2478,8 +2478,8 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-export-timings:<format>")) {
 			print_usage_line(2, "Exports timings to one of a few formats. Requires `-show-timings` or `-show-more-timings`.");
 			print_usage_line(2, "Available options:");
-			print_usage_line(3, "-export-timings:json   Exports compile time stats to JSON.");
-			print_usage_line(3, "-export-timings:csv    Exports compile time stats to CSV.");
+				print_usage_line(3, "-export-timings:json   Exports compile time stats to JSON.");
+				print_usage_line(3, "-export-timings:csv    Exports compile time stats to CSV.");
 		}
 
 		if (print_flag("-export-timings-file:<filename>")) {
@@ -2569,9 +2569,9 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-microarch:<string>")) {
 			print_usage_line(2, "Specifies the specific micro-architecture for the build in a string.");
 			print_usage_line(2, "Examples:");
-			print_usage_line(3, "-microarch:sandybridge");
-			print_usage_line(3, "-microarch:native");
-			print_usage_line(3, "-microarch:\"?\" for a list");
+				print_usage_line(3, "-microarch:sandybridge");
+				print_usage_line(3, "-microarch:native");
+				print_usage_line(3, "-microarch:\"?\" for a list");
 		}
 	}
 
@@ -2628,10 +2628,10 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-o:<string>")) {
 			print_usage_line(2, "Sets the optimization mode for compilation.");
 			print_usage_line(2, "Available options:");
-			print_usage_line(3, "-o:none");
-			print_usage_line(3, "-o:minimal");
-			print_usage_line(3, "-o:size");
-			print_usage_line(3, "-o:speed");
+				print_usage_line(3, "-o:none");
+				print_usage_line(3, "-o:minimal");
+				print_usage_line(3, "-o:size");
+				print_usage_line(3, "-o:speed");
 			if (LB_USE_NEW_PASS_SYSTEM) {
 				print_usage_line(3, "-o:aggressive (use this with caution)");
 			}
@@ -2682,10 +2682,10 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-reloc-mode:<string>")) {
 			print_usage_line(2, "Specifies the reloc mode.");
 			print_usage_line(2, "Available options:");
-			print_usage_line(3, "-reloc-mode:default");
-			print_usage_line(3, "-reloc-mode:static");
-			print_usage_line(3, "-reloc-mode:pic");
-			print_usage_line(3, "-reloc-mode:dynamic-no-pic");
+				print_usage_line(3, "-reloc-mode:default");
+				print_usage_line(3, "-reloc-mode:static");
+				print_usage_line(3, "-reloc-mode:pic");
+				print_usage_line(3, "-reloc-mode:dynamic-no-pic");
 		}
 
 	#if defined(GB_SYSTEM_WINDOWS)
@@ -2700,9 +2700,9 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-sanitize:<string>")) {
 			print_usage_line(2, "Enables sanitization analysis.");
 			print_usage_line(2, "Available options:");
-			print_usage_line(3, "-sanitize:address");
-			print_usage_line(3, "-sanitize:memory");
-			print_usage_line(3, "-sanitize:thread");
+				print_usage_line(3, "-sanitize:address");
+				print_usage_line(3, "-sanitize:memory");
+				print_usage_line(3, "-sanitize:thread");
 			print_usage_line(2, "NOTE: This flag can be used multiple times.");
 		}
 	}
@@ -2763,17 +2763,32 @@ gb_internal int print_show_help(String const arg0, String command, String option
 			print_usage_line(2, "[Windows only]");
 			print_usage_line(2, "Defines the subsystem for the application.");
 			print_usage_line(2, "Available options:");
-		print_usage_line(3, "-subsystem:console");
-		print_usage_line(3, "-subsystem:windows");
+				print_usage_line(3, "-subsystem:console");
+				print_usage_line(3, "-subsystem:windows");
 		}
 	#endif
+	}
 
+	if (build) {
+		if (print_flag("-subtarget")) {
+			print_usage_line(2, "[Darwin and Linux only]");
+			print_usage_line(2, "Available subtargets:");
+			String prefix = str_lit("-subtarget:");
+			for (u32 i = 1; i < Subtarget_COUNT; i++) {
+				String name   = subtarget_strings[i];
+				String help_string = concatenate_strings(temporary_allocator(), prefix, name);
+				print_usage_line(3, (const char *)help_string.text);
+			}
+		}
+	}
+
+	if (run_or_build) {
 		if (print_flag("-target-features:<string>")) {
 			print_usage_line(2, "Specifies CPU features to enable on top of the enabled features implied by -microarch.");
 			print_usage_line(2, "Examples:");
-			print_usage_line(3, "-target-features:atomics");
-			print_usage_line(3, "-target-features:\"sse2,aes\"");
-			print_usage_line(3, "-target-features:\"?\" for a list");
+				print_usage_line(3, "-target-features:atomics");
+				print_usage_line(3, "-target-features:\"sse2,aes\"");
+				print_usage_line(3, "-target-features:\"?\" for a list");
 		}
 	}
 
@@ -2810,11 +2825,11 @@ gb_internal int print_show_help(String const arg0, String command, String option
 		if (print_flag("-vet")) {
 			print_usage_line(2, "Does extra checks on the code.");
 			print_usage_line(2, "Extra checks include:");
-			print_usage_line(3, "-vet-unused");
-			print_usage_line(3, "-vet-unused-variables");
-			print_usage_line(3, "-vet-unused-imports");
-			print_usage_line(3, "-vet-shadowing");
-			print_usage_line(3, "-vet-using-stmt");
+				print_usage_line(3, "-vet-unused");
+				print_usage_line(3, "-vet-unused-variables");
+				print_usage_line(3, "-vet-unused-imports");
+				print_usage_line(3, "-vet-shadowing");
+				print_usage_line(3, "-vet-using-stmt");
 		}
 
 		if (print_flag("-vet-cast")) {