Merge commit 'f9f6402e9c9ce3642df981b48507df3a2d956f65'

* commit 'f9f6402e9c9ce3642df981b48507df3a2d956f65':
  configure: prettify atomics handling.

Conflicts:
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>

configure

@@ -1264,6 +1264,12 @@ THREADS_LIST='
     os2threads
 '
 
+ATOMICS_LIST='
+    atomics_gcc
+    atomics_win32
+    atomics_suncc
+'
+
 ARCH_LIST='
     aarch64
     alpha
@@ -1374,6 +1380,7 @@ HAVE_LIST="
     $HAVE_LIST_CMDLINE
     $HAVE_LIST_PUB
     $THREADS_LIST
+    $ATOMICS_LIST
     $MATH_FUNCS
     access
     aligned_malloc
@@ -1384,6 +1391,7 @@ HAVE_LIST="
     asm_mod_q
     asm_mod_y
     asm_types_h
+    atomics_native
     attribute_may_alias
     attribute_packed
     cdio_paranoia_h
@@ -3909,6 +3917,10 @@ if enabled pthreads; then
   check_func pthread_cancel
 fi
 
+enabled sync_val_compare_and_swap && enable atomics_gcc
+enabled machine_rw_barrier && enable atomics_suncc
+enabled MemoryBarrier && enable atomics_win32
+
 check_lib math.h sin -lm && LIBM="-lm"
 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
 enabled vaapi && require vaapi va/va.h vaInitialize -lva
@@ -4248,8 +4260,9 @@ case $target_os in
     ;;
 esac
 
-enabled_any $THREADS_LIST      && enable threads
 enable frame_thread_encoder
+enabled_any $THREADS_LIST      && enable threads
+enabled_any $ATOMICS_LIST      && enable atomics_native
 
 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
 

libavutil/Makefile

@@ -114,9 +114,9 @@ OBJS += $(COMPAT_OBJS:%=../compat/%)
 
 SKIPHEADERS          = old_pix_fmts.h
 
-SKIPHEADERS-$(HAVE_MACHINE_RW_BARRIER)          += atomic_suncc.h
-SKIPHEADERS-$(HAVE_MEMORYBARRIER)               += atomic_win32.h
-SKIPHEADERS-$(HAVE_SYNC_VAL_COMPARE_AND_SWAP)   += atomic_gcc.h
+SKIPHEADERS-$(HAVE_ATOMICS_SUNCC)      += atomic_suncc.h
+SKIPHEADERS-$(HAVE_ATOMICS_WIN32)      += atomic_win32.h
+SKIPHEADERS-$(HAVE_ATOMICS_GCC)        += atomic_gcc.h
 
 TESTPROGS = adler32                                                     \
             aes                                                         \

libavutil/atomic.c

@@ -20,7 +20,7 @@
 
 #include "atomic.h"
 
-#if !HAVE_MEMORYBARRIER && !HAVE_SYNC_VAL_COMPARE_AND_SWAP && !HAVE_MACHINE_RW_BARRIER
+#if !HAVE_ATOMICS_NATIVE
 
 #if HAVE_PTHREADS
 

libavutil/atomic.h

@@ -23,11 +23,11 @@
 
 #include "config.h"
 
-#if HAVE_SYNC_VAL_COMPARE_AND_SWAP
+#if HAVE_ATOMICS_GCC
 #include "atomic_gcc.h"
-#elif HAVE_MEMORYBARRIER
+#elif HAVE_ATOMICS_WIN32
 #include "atomic_win32.h"
-#elif HAVE_MACHINE_RW_BARRIER
+#elif HAVE_ATOMICS_SUNCC
 #include "atomic_suncc.h"
 #else