In general, GLib’s purpose is a utility and portability library. Those in itself are reasons to consider using it. The specific functions you mention all offer something extra on top of their C standard library variants: g_strdup_printf is like sprintf, but actually allocates the buffer for you and saves you the guesswork of how large … Read more
The function name g_atomic_int_compare_and_exchange_full is in parentheses. What’s the significance of this? Putting a function name in brackets avoids any macro expansion in case there is a function like macro with the same name. That means, g_atomic_int_compare_and_exchange_full(…) will use the macro while (g_atomic_int_compare_and_exchange_full)(…) will use the function. Why is this used? You cannot assign a … Read more
I also just stumbled over that problem when compiling MonetDB on my Linux machine. Here is the solution/workaround that worked for me: Always make clean after ./configure. In your example you should be able to do: ./configure –prefix=/root/build && make clean && make && make install I found the solution in a discussion on an … Read more
glibc is a core C runtime library. It provides things like printf(3) and fopen(3). glib is an object-based event loop and utility library written in C. gnulib is a library that provides an adapter from the POSIX API to the native API. All three are used for completely different tasks.
This page in Ubuntu’s bug tracker describes this particular situation. Apparently this is a known bug with 14.04, possibly because of a regression with GLib, or a mismatch between GLib and GTK (so says one of the commenters). Nothing is trying to remove Sublime, it’s just an error in a programming library. If nothing is … Read more
GLib and GOBject are 2 separate C libraries from which the GTK+ GUI toolkit is built (among other things). Since C is a lower-level language, GLib provides a lot of basic functionality like those utilities similar to what is built-in with Python (file input/output, string manipulation, memory management, threading, etc.). Since C is not an … Read more
glib tends to hide itself… Your include statement doesn’t work because GCC doesn’t automatically search subdirectories, and so cannot see the glib.h in glib-1.2 or glib-2.0. Read the Compiling GLib Applications page in the GLIB manuals… you use commands like pkg-config –cflags glib-2.0 to get the right flags for GCC. The canonical way to do … Read more
Use pkg-config. gcc `pkg-config –cflags glib-2.0` foo.c `pkg-config –libs glib-2.0`
Even if I only use one or two features of a large library, by linking to that library am I going to incur runtime performance overheads? In general, no. If the library in question doesn’t have a lot of position-independent code, then there will be a start-up cost while the dynamic linker performs relocations on … Read more
Start with Glib, its quite easy and well described here: Glib Reference Manual GObject is mostly a lot of boilerplate code to achieve object orientation. Try out the “maman bar” examples found in the GObject Reference Manual For me, GStreamer took the most time to understand. The documentation is good but there is alot to … Read more