[Bug gold/6716] New: gettext macros mangle system include files and causes compilation errors.

[alexandre at peadrop dot com]

Compilation of the gold linker, using g++ 4.2.3 on Linux 2.6.24, fails with the
following error:

if g++ -DHAVE_CONFIG_H -I. -I. -I. -I. -I./../include -I./../elfcpp
-DLOCALEDIR="\"/usr/local/share/locale\"" -DBINDIR="\"/usr/local/bin\""
-DTOOLBINDIR="\"/usr/local//bin\""    -W -Wall   -Werror -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -g -O2 -MT archive.o -MD -MP -MF ".deps/archive.Tpo" -c
-o archive.o archive.cc; \
        then mv -f ".deps/archive.Tpo" ".deps/archive.Po"; else rm -f
".deps/archive.Tpo"; exit 1; fi
In file included from /usr/include/c++/4.2/i486-linux-gnu/bits/c++locale.h:52,
                 from /usr/include/c++/4.2/iosfwd:45,
                 from /usr/include/c++/4.2/bits/stl_algobase.h:70,
                 from /usr/include/c++/4.2/memory:53,
                 from /usr/include/c++/4.2/tr1/hashtable:56,
                 from /usr/include/c++/4.2/tr1/unordered_set:37,
                 from gold.h:54,
                 from archive.cc:23:
/usr/include/libintl.h:40: error: expected unqualified-id before ‘const’
/usr/include/libintl.h:40: error: expected `)' before ‘const’
/usr/include/libintl.h:40: error: expected initializer before ‘const’
/usr/include/libintl.h:45: error: expected unqualified-id before ‘const’
/usr/include/libintl.h:45: error: expected `)' before ‘const’
/usr/include/libintl.h:45: error: expected initializer before ‘const’
/usr/include/libintl.h:52: error: expected unqualified-id before ‘const’
/usr/include/libintl.h:52: error: expected `)' before ‘const’
/usr/include/libintl.h:52: error: expected initializer before ‘const’
/usr/include/libintl.h:83: error: expected unqualified-id before ‘while’
/usr/include/libintl.h:83: error: expected initializer before ‘while’
/usr/include/libintl.h:87: error: expected unqualified-id before ‘while’
/usr/include/libintl.h:87: error: expected initializer before ‘while’


The problem lies in the header file gold/gold.h when ENABLE_NLS is undefined:

#ifdef ENABLE_NLS
# include <libintl.h>
# define _(String) gettext (String)
# ifdef gettext_noop
#  define N_(String) gettext_noop (String)
# else
#  define N_(String) (String)
# endif
#else
# define gettext(Msgid) (Msgid)
# define dgettext(Domainname, Msgid) (Msgid)
# define dcgettext(Domainname, Msgid, Category) (Msgid)
# define textdomain(Domainname) while (0) /* nothing */
# define bindtextdomain(Domainname, Dirname) while (0) /* nothing */
# define _(String) (String)
# define N_(String) (String)
#endif

The macros for gettext and cie. mangles the prototypes defined in the libintl.h
header and causes the compilation errors.

-- 
           Summary: gettext macros mangle system include files and causes
                    compilation errors.
           Product: binutils
           Version: 2.19 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
        AssignedTo: ian at airs dot com
        ReportedBy: alexandre at peadrop dot com
                CC: bug-binutils at gnu dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=6716

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