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[patch] Fix bootstrap
- From: Ritzert at t-online dot de (Michael Ritzert)
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 29 Jan 2003 23:33:25 +0100
- Subject: [patch] Fix bootstrap
Hi all,
my bootstrap (CVS HEAD) on alpha-unknown-linux-gnu dies with:
stage1/xgcc -Bstage1/ -B/home/obj/alpha/install/alpha-unknown-linux-gnu/bin/
-c -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -Wtraditional -pedantic -Wno-long-long -fno-common
-Werror -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -I.
-I/home/ritzert/nfs/compile/gcc/HEAD/gcc/gcc
-I/home/ritzert/nfs/compile/gcc/HEAD/gcc/gcc/.
-I/home/ritzert/nfs/compile/gcc/HEAD/gcc/gcc/config
-I/home/ritzert/nfs/compile/gcc/HEAD/gcc/gcc/../include
/home/ritzert/nfs/compile/gcc/HEAD/gcc/gcc/genoutput.c -o genoutput.o
/home/ritzert/nfs/compile/gcc/HEAD/gcc/gcc/genoutput.c: In function
`validate_insn_alternatives':
/home/ritzert/nfs/compile/gcc/HEAD/gcc/gcc/genoutput.c:756: warning: `c' might
be used uninitialized in this function
make[2]: *** [genoutput.o] Error 1
make[2]: Leaving directory `/home/obj/alpha/gcc-HEAD/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/home/obj/alpha/gcc-HEAD/gcc'
make: *** [bootstrap] Error 2
The fix appears simple (see below). Still I wonder why apparently nobody else
gets this error.
Michael
2003-01-29 Michael Ritzert <ritzert@t-online.de>
* genoutput.c (validate_insn_alternatives): Initialize c to avoid
a warning.
Index: genoutput.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/genoutput.c,v
retrieving revision 1.73
diff -u -3 -p -r1.73 genoutput.c
--- genoutput.c 13 Jan 2003 21:37:08 -0000 1.73
+++ genoutput.c 29 Jan 2003 22:25:49 -0000
@@ -753,7 +753,7 @@ validate_insn_alternatives (d)
{
int len, i;
const char *p;
- char c;
+ char c = 0;
int which_alternative = 0;
int alternative_count_unsure = 0;
c is unconditionally set to *p only for lines below, so initializing to any
value should be save.