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Build System: Require __sync or __atomic functions.

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This change causes the configure script to throw an error if neither
__sync nor __atomic builtin functions are available.

ASTERISK-27619

Change-Id: Ie01a281e0f5c41dfeeb5f250c1ccea8752f56ef9
This commit is contained in:
Corey Farrell
2018-01-25 02:37:32 -05:00
parent 6fbd855228
commit 23381d2c5e
7 changed files with 33 additions and 125 deletions
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17
configure vendored
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@@ -17909,6 +17909,7 @@ _ACEOF
if ac_fn_c_try_link "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
ax_cv_have_gcc_atomics=1
$as_echo "#define HAVE_GCC_ATOMICS 1" >>confdefs.h
@@ -17936,6 +17937,7 @@ _ACEOF
if ac_fn_c_try_link "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
ax_cv_have_c_atomics=1
$as_echo "#define HAVE_C_ATOMICS 1" >>confdefs.h
@@ -17947,6 +17949,10 @@ fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
if test -z $ax_cv_have_c_atomics$ax_cv_have_gcc_atomics; then
as_fn_error $? "*** Atomic operations are not supported by your compiler." "$LINENO" 5
fi
# glibc, AFAIK, is the only C library that makes printing a NULL to a string safe.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if your system printf is NULL-safe." >&5
$as_echo_n "checking if your system printf is NULL-safe.... " >&6; }
@@ -19357,17 +19363,6 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_fn_c_check_header_mongrel "$LINENO" "libkern/OSAtomic.h" "ac_cv_header_libkern_OSAtomic_h" "$ac_includes_default"
if test "x$ac_cv_header_libkern_OSAtomic_h" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_OSX_ATOMICS 1
_ACEOF
fi
# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.