Bug#245769: marked as done (gcc-3.2: -I"" makes gcc/g++ behave badly.)
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and subject line Bug#245769: gcc-3.2: -I"" makes gcc/g++ behave badly.
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From: Ake Sandgren <Ake.Sandgren@hpc2n.umu.se>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: gcc-3.2: -I"" makes gcc/g++ behave badly.
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Package: gcc-3.2
Version: 1:3.2.2-0pre2
Severity: normal
Adding -I"" to gcc/g++ makes it behave badly.
Example for gcc:
ingrid-h$ gcc -c apa.c
ingrid-h$ gcc -I"" -c apa.c
/usr/lib/gcc-lib/i386-linux/3.2.2/../../../crt1.o: In function `_start':
/usr/lib/gcc-lib/i386-linux/3.2.2/../../../crt1.o(.text+0x18): undefined
reference to `main'
collect2: ld returned 1 exit status
Where apa.c is:
#include <time.h>
int a()
{
return 0;
}
-I"" to gcc/g++ makes it unable to find includefiles
ingrid-h$ g++ -I/lap/clhep/include -c apa.cc
ingrid-h$ g++ -I"" -I/lap/clhep/include -c apa.cc
apa.cc:1:38: CLHEP/Vector/ThreeVector.h: No such file or directory
where apa.cc is:
#include <CLHEP/Vector/ThreeVector.h>
int a()
{
return 0;
}
-- System Information
Debian Release: 3.0
Architecture: i386
Kernel: Linux ingrid-h.hpc2n.umu.se 2.4.22-ingrid-p4-smp #1 SMP Fri Feb 13 09:40:18 CET 2004 i686
Locale: LANG=en_US, LC_CTYPE=en_US
Versions of packages gcc-3.2 depends on:
ii binutils 2.12.90.0.1-4 The GNU assembler, linker and bina
ii cpp-3.2 1:3.2.2-0pre2 The GNU C preprocessor.
ii gcc-3.2-base 1:3.2.2-0pre2 The GNU Compiler Collection (base
ii libc6 2.2.5-11.5 GNU C Library: Shared libraries an
ii libgcc1 1:3.2.2-0pre2 GCC support library.
---------------------------------------
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Date: Wed, 28 Apr 2004 07:37:46 +0200
To: Ake Sandgren <Ake.Sandgren@hpc2n.umu.se>, 245769-done@bugs.debian.org
Subject: Re: Bug#245769: gcc-3.2: -I"" makes gcc/g++ behave badly.
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References: <[🔎] E1BHgVy-0001Y4-00@ingrid-h.hpc2n.umu.se>
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Ake Sandgren writes:
> Package: gcc-3.2
> Version: 1:3.2.2-0pre2
> Severity: normal
>
> Adding -I"" to gcc/g++ makes it behave badly.
[...]
> -I"" to gcc/g++ makes it unable to find includefiles
> ingrid-h$ g++ -I/lap/clhep/include -c apa.cc
> ingrid-h$ g++ -I"" -I/lap/clhep/include -c apa.cc
> apa.cc:1:38: CLHEP/Vector/ThreeVector.h: No such file or directory
there is no bug in gcc, but how you call it. using -v you can see that
the directory <argument following -I> does not exist and is ignored.
$ gcc -v -I -O2 -c foo.c
[...]
/usr/lib/gcc-lib/i486-linux/3.3.3/cc1 -quiet -v -I -O2 -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=3 foo.c -quiet -dumpbase foo.c -auxbase foo -version -o /tmp/ccD6ackd.s
ignoring nonexistent directory "-O2"
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