On 05/12/13 13:26, Adrian Bunk wrote: > - remove the incorrect information that -fno-builtin would help > - add -std=c11 to the list of strict options > - emphasize more that both the gcc option and not including > alloca.h are needed > - add the #ifdef from the glibc alloca.h to make the situation clearer > > Signed-off-by: Adrian Bunk <bunk@xxxxxxxxxx> Thanks, Adrian. Applied. Cheers, Michael > --- > man3/alloca.3 | 16 +++++++++------- > 1 file changed, 9 insertions(+), 7 deletions(-) > > diff --git a/man3/alloca.3 b/man3/alloca.3 > index 73b88f5..0d593ed 100644 > --- a/man3/alloca.3 > +++ b/man3/alloca.3 > @@ -40,7 +40,7 @@ > .\" Various rewrites and additions (notes on longjmp() and SIGSEGV). > .\" Weaken warning against use of alloca() (as per Debian bug 461100). > .\" > -.TH ALLOCA 3 2008-01-24 "GNU" "Linux Programmer's Manual" > +.TH ALLOCA 3 2013-05-12 "GNU" "Linux Programmer's Manual" > .SH NAME > alloca \- allocate memory that is automatically freed > .SH SYNOPSIS > @@ -110,20 +110,22 @@ This is not done when either the > .IR "\-std=c89" , > .IR "\-std=c99" , > or the > -.IR "\-fno\-builtin" > +.IR "\-std=c11" > option is given > -(and the header > +.BR and > +the header > .I <alloca.h> > -is not included). > -But beware! > -By default the glibc version of > +is not included. > +Otherwise (without an \-ansi or \-std=c* option) the glibc version of > .I <stdlib.h> > includes > .I <alloca.h> > -and that contains the line: > +and that contains the lines: > .nf > > + #ifdef __GNUC__ > #define alloca(size) __builtin_alloca (size) > + #endif > > .fi > with messy consequences if one has a private version of this function. > -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
