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Only complain about lack of g++ on linux for now.

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This commit is contained in:
Wayne Davison
2020-06-16 11:35:54 -07:00
parent 29be5eddde
commit 38ecf188d9
1 changed files with 9 additions and 2 deletions
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11
configure.ac
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@@ -197,10 +197,17 @@ if test x"$enable_simd" != x"no"; then
# For x86-64 SIMD, g++ is also required
if test x"$build_cpu" = x"x86_64"; then
if test x"$CXX" = x"g++"; then
# AC_MSG_RESULT() called below
SIMD="$SIMD x86_64"
else
AC_MSG_RESULT(no)
AC_MSG_ERROR(Failed to find g++ for SIMD speedups. Use --disable-simd to continue without it.)
case "$host_os" in
*linux*)
AC_MSG_ERROR(Failed to find g++ for SIMD speedups. Use --disable-simd to continue without it.)
;;
*)
;;
esac
fi
fi
fi
@@ -208,7 +215,7 @@ fi
if test x"$SIMD" != x""; then
SIMD=`echo "$SIMD" | sed -e 's/^ *//'`
AC_MSG_RESULT([yes ($SIMD)])
AC_DEFINE(HAVE_SIMD, 1, [Define to 1 to enable SIMD optimizations])
AC_DEFINE(HAVE_SIMD, 1, [Define to 1 to enable SIMD optimizations])
SIMD=`echo "$SIMD" | sed -e 's/[[^ ]]\+/$(SIMD_&)/g'`
# We only use g++ for its target attribute dispatching, disable unneeded bulky features
CXXFLAGS="$CXXFLAGS -fno-exceptions -fno-rtti"