diff options
Diffstat (limited to 'package/openal/0005-Fix-detection-of-C11-atomics.patch')
| -rw-r--r-- | package/openal/0005-Fix-detection-of-C11-atomics.patch | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/package/openal/0005-Fix-detection-of-C11-atomics.patch b/package/openal/0005-Fix-detection-of-C11-atomics.patch deleted file mode 100644 index c6b9840908..0000000000 --- a/package/openal/0005-Fix-detection-of-C11-atomics.patch +++ /dev/null @@ -1,53 +0,0 @@ -From 10fee6d71a1f7d6e6319005196562b4a30b4e8ff Mon Sep 17 00:00:00 2001 -From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> -Date: Tue, 2 Feb 2016 14:58:52 +0100 -Subject: [PATCH] Fix detection of C11 atomics - -Currently, the CMakeLists.txt logic to detect the availability of C11 -atomics is based on building a small program that uses the -atomic_load(). - -However, atomic_load() does not need to use any function from -libatomic (part of the gcc runtime). So even if libatomic is missing, -this test concludes that C11 atomic support is available. For example -on SPARC, the example program builds fine without linking to -libatomic, but calling other functions of the atomic_*() APIs fail -without linking to libatomic. - -So, this patch adjusts the CMakeLists.txt test to use a function that -is known to require the libatomic run-time library (on architectures -where it is needed). This way, openal will only use the __atomic_*() -built-ins when they are actually functional. - -Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---- - CMakeLists.txt | 7 +++++-- - 1 file changed, 5 insertions(+), 2 deletions(-) - -diff --git a/CMakeLists.txt b/CMakeLists.txt -index 5784d35..a53f996 100644 ---- a/CMakeLists.txt -+++ b/CMakeLists.txt -@@ -209,14 +209,17 @@ CHECK_C_SOURCE_COMPILES( - HAVE_C11_ALIGNAS) - - # Check if we have C11 _Atomic -+set(OLD_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}) -+set(CMAKE_REQUIRED_LIBRARIES ${EXTRA_LIBS}) - CHECK_C_SOURCE_COMPILES( - "#include <stdatomic.h> -- const int _Atomic foo = ATOMIC_VAR_INIT(~0); -+ int _Atomic foo = ATOMIC_VAR_INIT(~0); - int main() - { -- return atomic_load(&foo); -+ return atomic_fetch_add(&foo, 2); - }" - HAVE_C11_ATOMIC) -+set(CMAKE_REQUIRED_LIBRARIES ${OLD_REQUIRED_LIBRARIES}) - - # Add definitions, compiler switches, etc. - INCLUDE_DIRECTORIES("${OpenAL_SOURCE_DIR}/include" "${OpenAL_BINARY_DIR}") --- -2.6.4 - |
