From e9a8e5e05df2ea39d3a9f5823f78b668402d04fb Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Dec 19 2018 01:38:40 +0000
Subject: custom config, modern.h: properly detect stdatomic.h and atomic built-ins.


---

diff --git a/profiles/osapi/modern.h b/profiles/osapi/modern.h
index 32fc82a..f8c788d 100644
--- a/profiles/osapi/modern.h
+++ b/profiles/osapi/modern.h
@@ -1,6 +1,15 @@
 #ifndef PY_OSAPI_MODERN_H
 #define PY_OSAPI_MODERN_H
 
+/* atomics */
+#ifdef  __ATOMIC_ACQUIRE
+#define HAVE_BUILTIN_ATOMIC             1
+#endif
+
+#ifdef  HAVE_STDATOMIC_H
+#define HAVE_STD_ATOMIC                 1
+#endif
+
 /* stdc headers */
 #define STDC_HEADERS                    1
 
@@ -57,7 +66,6 @@
 #define HAVE_ASINH                      1
 #define HAVE_ATANH                      1
 #define HAVE_BIND_TEXTDOMAIN_CODESET    1
-#define HAVE_BUILTIN_ATOMIC             1
 #define HAVE_CHOWN                      1
 #define HAVE_CHROOT                     1
 #define HAVE_CLOCK                      1
@@ -227,7 +235,6 @@
 #define HAVE_STATVFS                    1
 #define HAVE_STAT_TV_NSEC               1
 #define HAVE_STDARG_PROTOTYPES          1
-#define HAVE_STD_ATOMIC                 1
 #define HAVE_STRDUP                     1
 #define HAVE_STRFTIME                   1
 #define HAVE_STRLCPY                    1
diff --git a/project/config/cfgdefs.sh b/project/config/cfgdefs.sh
index 567e6cf..750de3a 100644
--- a/project/config/cfgdefs.sh
+++ b/project/config/cfgdefs.sh
@@ -80,6 +80,7 @@ cfgdefs_perform_common_tests()
 {
 	# headers
 	cfgtest_header_absence  'stropts.h'
+	cfgtest_header_presence 'stdatomic.h'
 	cfgtest_header_presence 'endian.h'
 	cfgtest_header_presence 'net/if.h'
 	cfgtest_header_presence 'sched.h'