Bug#734345: gcc-4.8: imacros command line breaks debugging information

[Nicolas Noble <pixel@nobis-crew.org>]

Package: gcc-4.8
Version: 4.8.2-11
Severity: normal
Tags: upstream

Hello,

  Currently, the gcc debian package has a bug that comes from upstream:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57653


  The effect of the bug is if one compiles a file with the option -imacros,
the filename and all useful debugging information disappears. Here is a
simple example of that:

imacros-test$ cat somefile.c
#warning some warning
imacros-test$ cat macros.h
#define SOME_MACRO
imacros-test$ gcc -c somefile.c
somefile.c:1:2: warning: #warning some warning [-Wcpp]
 #warning some warning
  ^
imacros-test$ gcc -c somefile.c -imacros macros.h
<command-line>:1:2: warning: #warning some warning [-Wcpp]


  This also affects the debugging information embedded within the files,
rendering debugging pretty useless.

  While I am aware this is a bug from upstream, it's been sitting there
for a while with a simple patch. It'd be nice to apply that patch on the
debian package in the meantime.


  Thanks!


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.7.10-vs2.3.5.6 (SMP w/16 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gcc-4.8 depends on:
ii  binutils        2.24-2
ii  cpp-4.8         4.8.2-11
ii  gcc-4.8-base    4.8.2-11
ii  libc6           2.17-97
ii  libcloog-isl4   0.18.1-3
ii  libgcc-4.8-dev  4.8.2-11
ii  libgmp10        2:5.1.3+dfsg-1
ii  libisl10        0.12.1-2
ii  libmpc3         1.0.1-1
ii  libmpfr4        3.1.2-1
ii  zlib1g          1:1.2.8.dfsg-1

Versions of packages gcc-4.8 recommends:
ii  libc6-dev  2.17-97

Versions of packages gcc-4.8 suggests:
ii  binutils [binutils-gold]  2.24-2
pn  gcc-4.8-doc               <none>
pn  gcc-4.8-locales           <none>
pn  gcc-4.8-multilib          <none>
pn  libasan0-dbg              <none>
pn  libatomic1-dbg            <none>
pn  libbacktrace1-dbg         <none>
pn  libgcc1-dbg               <none>
pn  libgomp1-dbg              <none>
pn  libitm1-dbg               <none>
pn  libquadmath0-dbg          <none>
pn  libtsan0-dbg              <none>

-- no debconf information