scc

simple C compiler
git clone git://git.2f30.org/scc
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commit b4bedf30b77624450f8c1e9d3aafd7ab0e41075c
parent 4ddd2d61847e132b3ced1e658d47e91529ab646f
Author: Quentin Rameau <quinq@fifth.space>
Date:   Wed, 15 Feb 2017 16:38:20 +0100

[driver] Discard error messages not from cc1

Diffstat:
driver/posix/scc.c | 7+++++++
1 file changed, 7 insertions(+), 0 deletions(-)

diff --git a/driver/posix/scc.c b/driver/posix/scc.c @@ -7,6 +7,7 @@ static char sccsid[] = "@(#) ./driver/posix/scc.c"; #include <unistd.h> #include <errno.h> +#include <fcntl.h> #include <limits.h> #include <signal.h> #include <stdio.h> @@ -55,6 +56,7 @@ static char *tmpdir; static size_t tmpdirln; static struct items objtmp, objout; static int Mflag, Eflag, Sflag, cflag, kflag, sflag; +static int devnullfd; extern int failure; @@ -246,6 +248,8 @@ spawn(int tool) dup2(t->out, 1); if (t->in > -1) dup2(t->in, 0); + if (tool != CC1) + dup2(devnullfd, 2); execvp(t->cmd, t->args.s); fprintf(stderr, "scc: execvp %s: %s\n", t->cmd, strerror(errno)); @@ -507,6 +511,9 @@ operand: tmpdir = "."; tmpdirln = strlen(tmpdir); + if ((devnullfd = open("/dev/null", O_WRONLY)) < 0) + fputs("scc: could not open /dev/null\n", stderr); + build(&linkchain, (link = !(Mflag || Eflag || Sflag || cflag))); if (!(link || cflag))