On Mon, Jul 23, 2012 at 01:16:07AM +0100, Måns Rullgård wrote: > Diego Biurrun <[email protected]> writes: > > > On Mon, Jul 23, 2012 at 12:16:41AM +0100, Mans Rullgard wrote: > >> This allows using non-standard flags for running the C preprocessor. > >> The -o flag must be included in this setting due to strange syntax > >> required by some compilers. > >> > >> --- a/configure > >> +++ b/configure > >> @@ -632,7 +636,7 @@ check_cpp(){ > >> log_file $TMPC > >> - check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC > >> + check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC > >> } > >> > >> @@ -1724,6 +1728,7 @@ cflags_filter=echo > >> > >> AS_O='-o $@' > >> +CC_E='-E -o $@' > >> CC_O='-o $@' > >> LD_O='-o $@' > >> HOSTCC_O='-o $@' > >> @@ -2042,7 +2047,8 @@ probe_cc(){ > >> > >> - unset _type _ident _cc_o _flags _cflags _ldflags _depflags _DEPCMD > >> _DEPFLAGS > >> + unset _type _ident _cc_e _cc_o _flags _cflags _ldflags > >> + unset _depflags _DEPCMD _DEPFLAGS > >> _flags_filter=echo > >> > >> @@ -2105,6 +2111,7 @@ probe_cc(){ > >> _flags='--gcc --abi=eabi -me' > >> _cflags='-D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=' > >> + _cc_e='-ppl -fe=$@' > >> _cc_o='-fe=$@' > > > > Why not set "CC_E" (or whatever) to "-E", "-ppl" and combine it with > > the cc_o function we already have? Something like this: > > > > for gcc (default): > > CC_E='-E' > > for that strange beast: > > CC_E='-ppl' > > > > - check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC > > + check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_E $(cc_o $TMPO) $TMPC > > Because there are even stranger beasts in the compiler jungle. For > example, the IAR compiler needs CC_E='--preprocess=n $@' (note the lack > of -o). It's probably not the only one.
CC_E='--preprocess=n' _cc_o='$@' Why would something like that not work? Diego _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
