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[Bug build/13966] Some elf tests fail with "fatal error: cstdio: No such file or directory" on trunk
- From: "joseph at codesourcery dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Thu, 19 Apr 2012 20:00:46 +0000
- Subject: [Bug build/13966] Some elf tests fail with "fatal error: cstdio: No such file or directory" on trunk
- Auto-submitted: auto-generated
- References: <bug-13966-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=13966
--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2012-04-19 20:00:46 UTC ---
On Tue, 10 Apr 2012, carlos_odonell at mentor dot com wrote:
> I don't know how this worked in the past.
>
> Compiling a C++ application with -nostdinc is not going to work.
If you don't use --with-headers - if you use your system's default kernel
headers - then you don't get -nostdinc used, so don't see this. (And
that also covers the case of building a cross compiler and preinstalling
the kernel headers into its default sysroot.)
There is code in configure.in that tries to locate the compiler's internal
directories - including the C++ ones - for the case where -nostdinc is
used. So if it's not working in a particular case, I'd investigate, on
the affected system, what is wrong with this configure code and how it
needs to be fixed to find the right directories for C++ headers.
# if using special system headers, find out the compiler's sekrit
# header directory and add that to the list. NOTE: Only does the right
# thing on a system that doesn't need fixincludes. (Not presently a problem.)
if test -n "$sysheaders"; then
SYSINCLUDES=-nostdinc
for d in include include-fixed; do
i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" &&
SYSINCLUDES="$SYSINCLUDES -isystem $i"
done
SYSINCLUDES="$SYSINCLUDES \
-isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"
if test -n "$CXX"; then
CXX_SYSINCLUDES=
cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` &&
cxxmachine=`$CXX -dumpmachine 2>&AS_MESSAGE_LOG_FD` &&
for d in include "$cxxmachine/include"; do
i=../../../../$d/c++/$cxxversion
cxxheaders=`$CXX -print-file-name="$i"` &&
test "x$cxxheaders" != x && test "x$i" != "x$cxxheaders" &&
CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders \
-isystem $cxxheaders/$cxxmachine -isystem $cxxheaders/backward"
done
fi
fi
AC_SUBST(SYSINCLUDES)
AC_SUBST(CXX_SYSINCLUDES)
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