This bug report may be distantly related to but (hopefully) is not a dupe of:
[4.3 Regression] Warnings while compiling libobjc with the uleb128 changes
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30731
When I make gcc 4.3.0 I create a "make log" like so:
make 2>&1 | tee make_1_log.txt
File: gcc-4_3-trunk/gcc/configure has this line in it:
"# Check if we have .[us]leb128, and support symbol arithmetic with it."
When I check my log I see this:
# grep leb128 make_16_log.txt
checking assembler for .sleb128 and .uleb128...
/root/downloads/gcc-4_3-trunk/gcc/configure: line 14092: test: too many
arguments
checking assembler for .sleb128 and .uleb128...
/root/downloads/gcc-4_3-trunk/gcc/configure: line 14092: test: too many
arguments
checking assembler for .sleb128 and .uleb128...
/root/downloads/gcc-4_3-trunk/gcc/configure: line 14092: test: too many
arguments
/root/downloads/gcc-4_3-trunk/libobjc/exception.c:94: warning: passing argument
2 of 'read_uleb128' from incompatible pointer type
/root/downloads/gcc-4_3-trunk/libobjc/exception.c:103: warning: passing
argument 2 of 'read_uleb128' from incompatible pointer type
/root/downloads/gcc-4_3-trunk/libobjc/exception.c:234: warning: passing
argument 2 of 'read_uleb128' from incompatible pointer type
Looking at "gcc-4_3-trunk/gcc/configure" I see this:
# GAS versions before 2.11 do not support uleb128,
# despite appearing to.
# ??? There exists an elf-specific test that will crash
# the assembler. Perhaps it's better to figure out whether
# arbitrary sections are supported and try the test.
as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
if echo "$as_ver" | grep GNU > /dev/null; then
as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
as_major=`echo $as_ver | sed 's/\..*//'`
as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
if test $as_major -eq 2 && test $as_minor -lt 11
then :
else gcc_cv_as_leb128=yes
fi
fi
Running a few commands by hand gives this:
# echo `as --version 2>/dev/null | sed 1q`
GNU assembler (GNU Binutils) 2.17.50.20070426
# echo "GNU assembler (GNU Binutils) 2.17.50.20070426" | sed -e 's/GNU
assembler \([0-9.][0-9.]*\).*/\1/'
GNU assembler (GNU Binutils) 2.17.50.20070426
# echo "GNU assembler (GNU Binutils) 2.17.50.20070426" | sed -e 's/GNU
assembler (GNU Binutils) \([0-9.][0-9.]*\).*/\1/'
2.17.50.20070426
Testing a few different assemblers that I have I see things like this:
# /usr/bin/as-Origonal --version
GNU assembler 2.17 Debian GNU/Linux
# /usr/bin/as-2.17cvs20070426 --version
GNU assembler (GNU Binutils) 2.17.50.20070426
# /usr/bin/as-2.17.50.20070426 --version
GNU assembler (GNU Binutils for Debian) 2.17.50.20070426
Try a new command string:
# echo "GNU assembler (GNU Binutils) 2.17.50.20070426" | grep -o [0-9.+] | tr
-d [:cntrl:]
2.17.50.20070426
FIX:
# diff -Naur gcc/configure-Origonal gcc/configure
--- gcc/configure-Origonal 2007-06-11 09:02:56.000000000 -0700
+++ gcc/configure 2007-06-11 09:03:56.000000000 -0700
@@ -14086,7 +14086,7 @@
# arbitrary sections are supported and try the test.
as_ver=`$gcc_cv_as --version 2>/dev/null | sed 1q`
if echo "$as_ver" | grep GNU > /dev/null; then
- as_ver=`echo $as_ver | sed -e 's/GNU assembler \([0-9.][0-9.]*\).*/\1/'`
+ as_ver=`echo $as_ver | grep -o [0-9.+] | tr -d [:cntrl:]
as_major=`echo $as_ver | sed 's/\..*//'`
as_minor=`echo $as_ver | sed 's/[^.]*\.\([0-9]*\).*/\1/'`
if test $as_major -eq 2 && test $as_minor -lt 11
The patch grabs _only_ the version number (without so much as a trailing "\n").
--
Summary: Grep for "as" broken -- configure: line 14092: test: too
many arguments sleb128 uleb128
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rob1weld at aol dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32287
