From a9cfb33b6c82a99e852a06de2127ffaea85bc212 Mon Sep 17 00:00:00 2001 From: Jon Beniston Date: Fri, 31 Aug 2018 17:44:33 +0100 Subject: Add --disable-newlib-fno-builtin to allow compilation without -fno-builtin for smaller and faster code. --- newlib/acinclude.m4 | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'newlib/acinclude.m4') diff --git a/newlib/acinclude.m4 b/newlib/acinclude.m4 index 8c2cdc3b8..19dfe0864 100644 --- a/newlib/acinclude.m4 +++ b/newlib/acinclude.m4 @@ -92,6 +92,16 @@ AC_ARG_ENABLE(newlib-supplied-syscalls, AM_CONDITIONAL(MAY_SUPPLY_SYSCALLS, test x[$]{newlib_may_supply_syscalls} = xyes) +dnl Support --disable-newlib-fno-builtin +AC_ARG_ENABLE(newlib-fno-builtin, +[ --disable-newlib-fno-builtin disable -fno-builtin flag to allow compiler to use builtin library functions], +[case "${enableval}" in + yes) newlib_fno_builtin=yes ;; + no) newlib_fno_builtin=no ;; + *) AC_MSG_ERROR(bad value ${enableval} for newlib-fno-builtin option) ;; + esac], [newlib_fno_builtin=])dnl + + dnl We may get other options which we don't document: dnl --with-target-subdir, --with-multisrctop, --with-multisubdir @@ -202,8 +212,6 @@ fi . [$]{newlib_basedir}/configure.host -newlib_cflags="[$]{newlib_cflags} -fno-builtin" - NEWLIB_CFLAGS=${newlib_cflags} AC_SUBST(NEWLIB_CFLAGS) -- cgit v1.2.3