Bug#303124: g++-2.95 spews out lots of warnings with glib header files
Loïc Minier [EMAIL PROTECTED] writes: I'm not sure upstream would accept a patch cluttering the headers for to avoid warnings with an old compiler. Nosing around in /usr/lib/glib-2.0/include/glibconfig.h I see there's just such a 2.95 conditional on G_HAVE_ISO_VARARGS, if that could be extended to G_HAVE_GNUC_VISIBILITY. Changing to the following works for me #define G_HAVE_GNUC_VARARGS 1 #define G_HAVE_GROWING_STACK 0 #define G_HAVE_GNUC_VISIBILITY 1 /* gcc-2.95.x supports both gnu style and ISO varargs, but if -ansi * is passed ISO vararg support is turned off, and there is no work * around to turn it on, so we unconditionally turn it off. * * gcc-2.95.x doesn't have __attribute__((visibility ...)). */ #if __GNUC__ == 2 __GNUC_MINOR__ == 95 # undef G_HAVE_ISO_VARARGS # undef G_HAVE_GNUC_VISIBILITY #endif #if G_HAVE_GNUC_VISIBILITY #define G_GNUC_INTERNAL __attribute__((visibility(hidden))) #else #define G_GNUC_INTERNAL #endif
Bug#303124: g++-2.95 spews out lots of warnings with glib header files
Hi, On Tue, Apr 05, 2005, Richard Atterer wrote: compiling glib applications with g++-2.95 is possible, but the compiler outputs a lot of warnings like this: /usr/include/glib-2.0/gobject/gtype.h:431: warning: `visibility' attribute directive ignored [...] The headers should suppress these warnings if the detected compiler is gcc 2.95. I'm not sure upstream would accept a patch cluttering the headers for to avoid warnings with an old compiler. I don't think we would want to maintain a patch changing all invocations of G_GNUC_INTERNAL (currently 10) in Debian. It might be possible to patch only G_GNUC_INTERNAL, if this is the case, and you're willing to write a patch, I'll forward it upstream for inclusion. Meanwhile, I suggest you disable that particular warning or this particular class of warnings. Bye, -- Loïc Minier [EMAIL PROTECTED]
Bug#303124: g++-2.95 spews out lots of warnings with glib header files
Package: libglib2.0-dev Version: 2.6.3-1 Severity: minor Hello, compiling glib applications with g++-2.95 is possible, but the compiler outputs a lot of warnings like this: /usr/include/glib-2.0/gobject/gtype.h:431: warning: `visibility' attribute directive ignored /usr/include/glib-2.0/gobject/gtype.h:432: warning: `visibility' attribute directive ignored /usr/include/glib-2.0/gobject/gtype.h:433: warning: `visibility' attribute directive ignored Apparently, this is caused by the G_GNUC_INTERNAL e.g. in gtype.h:431: voidg_value_c_init (void) G_GNUC_INTERNAL; /* sync with gvalue.c */ I used the following compiler switches: -Wall -W -Wpointer-arith -Wconversion -Woverloaded-virtual -O2 The headers should suppress these warnings if the detected compiler is gcc 2.95. Cheers, Richard -- System Information: Debian Release: 3.1 APT prefers testing APT policy: (990, 'testing') Architecture: i386 (i686) Kernel: Linux 2.4.27 Locale: LANG=C, LC_CTYPE=de_DE (charmap=ISO-8859-15) Versions of packages libglib2.0-dev depends on: ii libc6-dev [libc-dev]2.3.2.ds1-20 GNU C Library: Development Librari ii libglib2.0-02.6.3-1 The GLib library of C routines ii pkg-config 0.15.0-4 Manage compile and link flags for -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
