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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, "Thomas Huth" <thuth@redhat.com>,
	"Alex Bennée" <alex.bennee@linaro.org>
Subject: [PULL 8/8] configure: Remove probe for _Static_assert
Date: Tue, 15 Jun 2021 18:36:29 -0700	[thread overview]
Message-ID: <20210616013629.1458790-9-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210616013629.1458790-1-richard.henderson@linaro.org>

_Static_assert is part of C11, which is now required.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210614233143.1221879-9-richard.henderson@linaro.org>
---
 configure               | 18 ------------------
 include/qemu/compiler.h | 11 -----------
 2 files changed, 29 deletions(-)

diff --git a/configure b/configure
index 0489864667..debd50c085 100755
--- a/configure
+++ b/configure
@@ -5090,20 +5090,6 @@ if compile_prog "" "" ; then
     have_sysmacros=yes
 fi
 
-##########################################
-# check for _Static_assert()
-
-have_static_assert=no
-cat > $TMPC << EOF
-_Static_assert(1, "success");
-int main(void) {
-    return 0;
-}
-EOF
-if compile_prog "" "" ; then
-    have_static_assert=yes
-fi
-
 ##########################################
 # check for utmpx.h, it is missing e.g. on OpenBSD
 
@@ -6035,10 +6021,6 @@ if test "$have_sysmacros" = "yes" ; then
   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
 fi
 
-if test "$have_static_assert" = "yes" ; then
-  echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
-fi
-
 if test "$have_utmpx" = "yes" ; then
   echo "HAVE_UTMPX=y" >> $config_host_mak
 fi
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index 5766d61589..3baa5e3790 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -72,18 +72,7 @@
         int:(x) ? -1 : 1; \
     }
 
-/* QEMU_BUILD_BUG_MSG() emits the message given if _Static_assert is
- * supported; otherwise, it will be omitted from the compiler error
- * message (but as it remains present in the source code, it can still
- * be useful when debugging). */
-#if defined(CONFIG_STATIC_ASSERT)
 #define QEMU_BUILD_BUG_MSG(x, msg) _Static_assert(!(x), msg)
-#elif defined(__COUNTER__)
-#define QEMU_BUILD_BUG_MSG(x, msg) typedef QEMU_BUILD_BUG_ON_STRUCT(x) \
-    glue(qemu_build_bug_on__, __COUNTER__) __attribute__((unused))
-#else
-#define QEMU_BUILD_BUG_MSG(x, msg)
-#endif
 
 #define QEMU_BUILD_BUG_ON(x) QEMU_BUILD_BUG_MSG(x, "not expecting: " #x)
 
-- 
2.25.1



  parent reply	other threads:[~2021-06-16  1:48 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-16  1:36 [PULL 0/8] configure: Change to -std=gnu11 Richard Henderson
2021-06-16  1:36 ` [PULL 1/8] configure: Use -std=gnu11 Richard Henderson
2021-06-16  1:36 ` [PULL 2/8] softfloat: Use _Generic instead of QEMU_GENERIC Richard Henderson
2021-06-16  1:36 ` [PULL 3/8] util: Use real functions for thread-posix QemuRecMutex Richard Henderson
2021-06-16  1:36 ` [PULL 4/8] util: Pass file+line to qemu_rec_mutex_unlock_impl Richard Henderson
2021-06-16  1:36 ` [PULL 5/8] util: Use unique type for QemuRecMutex in thread-posix.h Richard Henderson
2021-06-16  1:36 ` [PULL 6/8] include/qemu/lockable: Use _Generic instead of QEMU_GENERIC Richard Henderson
2021-06-16  1:36 ` [PULL 7/8] qemu/compiler: Remove QEMU_GENERIC Richard Henderson
2021-06-16  1:36 ` Richard Henderson [this message]
2021-06-16  1:51 ` [PULL 0/8] configure: Change to -std=gnu11 no-reply
2021-06-17 14:42 ` Peter Maydell

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