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Old gcc versions need -flax-vector-conversions to compile some intrinsics

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This commit is contained in:
Frank Denis 2016-03-24 19:11:21 +01:00
parent a3a2b74bd8
commit 3f765f1737
1 changed files with 18 additions and 2 deletions
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20
configure.ac
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@ -186,6 +186,22 @@ AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CFLAGS="$CFLAGS -fno-strict-overf
AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"]) AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"])
]) ])
AS_IF([test "$GCC" = "yes" ], [
AS_CASE([$host_cpu],
[i?86|amd64|x86_64], [
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([
#if !defined(__clang__) && defined(__GNUC__) && ((__GNUC__ << 8) | __GNUC_MINOR__) < 0x403
# error old gcc
#endif
int main(void) { return 0; }
])],,[
AX_CHECK_COMPILE_FLAG([-flax-vector-conversions], [CFLAGS="$CFLAGS -flax-vector-conversions"])
])
]
)
])
LIBTOOL_OLD_FLAGS="$LIBTOOL_EXTRA_FLAGS" LIBTOOL_OLD_FLAGS="$LIBTOOL_EXTRA_FLAGS"
LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION" LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION"
AC_ARG_ENABLE(soname-versions, AC_ARG_ENABLE(soname-versions,
@ -405,7 +421,7 @@ dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE AC_C_INLINE
AS_CASE([$host_cpu], AS_CASE([$host_cpu],
[i*86 | x86_64], [i?86|amd64|x86_64],
[ac_cv_c_bigendian=no] [ac_cv_c_bigendian=no]
) )
AC_C_BIGENDIAN( AC_C_BIGENDIAN(
@ -587,7 +603,7 @@ void f(void *x) { __dummy(x); }
AC_MSG_CHECKING(if data alignment is required) AC_MSG_CHECKING(if data alignment is required)
aligned_access_required=yes aligned_access_required=yes
AS_CASE([$host_cpu], AS_CASE([$host_cpu],
[i*86 | x86_64 | powerpc* | s390*], [i?86|amd64|x86_64|powerpc*|s390*],
[aligned_access_required=no], [aligned_access_required=no],
[arm*], [arm*],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[