v3.10.1 - Make nob.h compilable with -std=c99

nob.h

@@ -1,4 +1,4 @@
-/* nob - v3.10.0 - Public Domain - https://github.com/tsoding/nob.h
+/* nob - v3.10.1 - Public Domain - https://github.com/tsoding/nob.h
 
    This library is the next generation of the [NoBuild](https://github.com/tsoding/nobuild) idea.
 
@@ -116,6 +116,10 @@
 #define NOBDEF
 #endif /* NOBDEF */
 
+#if defined(__unix__) && !defined(_POSIX_C_SOURCE)
+#define _POSIX_C_SOURCE 200809L
+#endif
+
 #ifndef NOB_ASSERT
 #include <assert.h>
 #define NOB_ASSERT assert
@@ -798,10 +802,10 @@ NOBDEF char *nob_temp_running_executable_path(void);
 
 #ifndef nob_cc
 #  if _WIN32
-#    if defined(__GNUC__)
-#       define nob_cc(cmd) nob_cmd_append(cmd, "cc")
-#    elif defined(__clang__)
+#    if defined(__clang__)
 #       define nob_cc(cmd) nob_cmd_append(cmd, "clang")
+#    elif defined(__GNUC__)
+#       define nob_cc(cmd) nob_cmd_append(cmd, "cc")
 #    elif defined(_MSC_VER)
 #       define nob_cc(cmd) nob_cmd_append(cmd, "cl.exe")
 #    elif defined(__TINYC__)
@@ -3130,6 +3134,8 @@ NOBDEF char *nob_temp_running_executable_path(void)
 /*
    Revision history:
 
+     3.10.1 (2026-10-28) Set _POSIX_C_SOURCE to 200809L for Unix environments (by @aalmkainzi)
+                         Make nob_cc check for clang first on _WIN32 (by @aalmkainzi)
      3.10.0 (2026-07-17) Make NOB_SVLIT a bit more usable at compile-time (by @Arhcout)
                          Add NOB_SVLIT_STATIC for when a compiler simply refuses to accept NOB_SVLIT() at compile-time (looking at you `cl.exe /TC`) (by @rexim)
       3.9.0 (2026-07-15) Add NOB_TODOF() and NOB_UNREACHABLEF()

shared.h

@@ -20,15 +20,8 @@
 #else // __cplusplus
     #if defined(_MSC_VER)
         #define nob_cc_flags(cmd) cmd_append(cmd, "/TC", "/W4", "/nologo", "/D_CRT_SECURE_NO_WARNINGS", "-I.")
-    #elif defined(__APPLE__) || defined(__MACH__)
-        // TODO: "-std=c99", "-D_POSIX_C_SOURCE=200112L" didn't work for MacOS, don't know why, don't really care that much at the moment.
-        //   Anybody who does feel free to investigate.
-        #define nob_cc_flags(cmd) cmd_append(cmd, "-Wall", "-Wextra", "-Wswitch-enum", "-I.")
-    #elif defined(__FreeBSD__)
-    // "-D_POSIX_C_SOURCE=200112L" hides required symbols on FreeBSD
-        #define nob_cc_flags(cmd) cmd_append(cmd, "-Wall", "-Wextra", "-Wswitch-enum", "-std=c99", "-ggdb", "-I.");
     #else
-        #define nob_cc_flags(cmd) cmd_append(cmd, "-Wall", "-Wextra", "-Wswitch-enum", "-std=c99", "-D_POSIX_C_SOURCE=200112L", "-ggdb", "-I.");
+        #define nob_cc_flags(cmd) cmd_append(cmd, "-Wall", "-Wextra", "-Wswitch-enum", "-std=c99", "-ggdb", "-I.");
     #endif
 #endif // __cplusplus
 

tests/bytes_for_utf8.c

@@ -1,4 +1,3 @@
-#include <stdio.h>
 #define NOB_IMPLEMENTATION
 #include "nob.h"
 

tests/sv_foreach.c

@@ -1,5 +1,3 @@
-#include <stdio.h>
-
 #define NOB_IMPLEMENTATION
 #include "nob.h"