| Simple install procedure |
| ======================== |
| |
| % gzip -cd glib-@GLIB_VERSION@.tar.gz | tar xvf - # unpack the sources |
| % cd glib-@GLIB_VERSION@ # change to the toplevel directory |
| % ./configure # run the `configure' script |
| % make # build GLIB |
| |
| [ Become root if necessary ] |
| % rm -rf /install-prefix/include/glib.h /install-prefix/include/gmodule.h |
| % make install # install GLIB |
| |
| Requirements |
| ============ |
| |
| GLib-2.0 requires pkg-config, which is tool for tracking the |
| compilation flags needed for libraries. (For each library, a small .pc |
| text file is installed in a standard location that contains the |
| compilation flags needed for that library along with version number |
| information.) Information about pkg-config can be found at: |
| |
| http://www.freedesktop.org/software/pkgconfig/ |
| |
| GNU make (http://www.gnu.org/software/make) is also recommended. |
| |
| In order to implement conversions between character sets, |
| GLib requires an implementation of the standard iconv() routine. |
| Most modern systems will have a suitable implementation, however |
| many older systems lack an iconv() implementation. On such systems, |
| you must install the libiconv library. This can be found at: |
| |
| http://www.gnu.org/software/libiconv/ |
| |
| If your system has an iconv implementation but you want to use |
| libiconv instead, you can pass the --with-libiconv option to |
| configure. This forces libiconv to be used. |
| |
| Note that if you have libiconv installed in your default include |
| search path (for instance, in /usr/local/), but don't enable |
| it, you will get an error while compiling GTK+ because the |
| iconv.h that libiconv installs hides the system iconv. |
| |
| If you are using the native iconv implementation on Solaris |
| instead of libiconv, you'll need to make sure that you have |
| the converters between locale encodings and UTF-8 installed. |
| At a minimum you'll need the SUNWuiu8 package. You probably |
| should also install the SUNWciu8, SUNWhiu8, SUNWjiu8, and |
| SUNWkiu8 packages. |
| |
| The native iconv on Compaq Tru64 doesn't contain support for |
| UTF-8, so you'll need to use GNU libiconv instead. (When |
| using GNU libiconv for GTK+, you'll need to use GNU libiconv |
| for GNU gettext as well.) This probably applies to related |
| operating systems as well. |
| |
| Finally, for message catalog handling, GTK+ requires an implementation |
| of gettext(). If your system doesn't provide this functionality, |
| you should use the libintl library from the GNU gettext package, |
| available from: |
| |
| http://www.gnu.org/software/gettext/ |
| |
| The Nitty-Gritty |
| ================ |
| |
| The 'configure' script can be given a number of options to enable |
| and disable various features. For a complete list, type: |
| |
| ./configure --help |
| |
| A few of the more important ones: |
| |
| * --prefix=PREFIX install architecture-independent files in PREFIX |
| [ Defaults to /usr/local ] |
| |
| * --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX |
| [ Defaults to the value given to --prefix ] |
| |
| * --enable-debug=[yes/no/minimum] determines the amount of debugging |
| code to include. 'yes' will includes some |
| extra checks and debugging features that |
| may be useful for people developing with |
| GLib. 'no' produces a somewhat smaller and |
| faster library at the expense of reduced |
| robustness. |
| [ Defaults to 'minimum' for stable releases ] |
| |
| * --enable-gc-friendly When enabled all memory freed by the application, |
| but retained by GLib for performance reasons |
| is set to zero, thus making deployed garbage |
| collection or memory profiling tools detect |
| unlinked memory correctly. This will make GLib |
| slightly slower. |
| [ --disable-gc-friendly is default ] |
| |
| * --disable-mem-pools Do not cache freed objects. When specified, |
| GLib will immediately return freed memory |
| to the C library instead of keeping around |
| pools of free objects such as linked list |
| and hash table nodes. Specifying this |
| will make GLib slower in most cases, but it |
| will use less memory. |
| [ --enable-mem-pools is the default ] |
| |
| * --disable-threads Do not compile GLib to be multi thread safe. GLib |
| will be slightly faster then. This is however not |
| recommended, as many programs rely on GLib being |
| multi thread safe. |
| [ --enable-threads is the default ] |
| |
| * --with-threads=[none/posix/dce/solaris/win32] Specify a thread |
| implementation to use. |
| * 'posix' and 'dce' can be used interchangeable |
| to mean the different versions of posix |
| threads. configure tries to find out, which |
| one is installed. |
| * 'solaris' uses the native Solaris thread |
| implementation. |
| * 'none' means that GLib will be thread safe, |
| but does not have a default thread |
| implementation. This has to be supplied to |
| g_thread_init() by the programmer. |
| [ Determined by configure by default ] |
| |
| * --enable-included-printf=[yes/no/auto] Specify whether to build using |
| the included copy of the Trio library |
| for string formatting functions like printf(). |
| The default is 'auto', which means that |
| Trio will be used if configure detects |
| missing features in your system native |
| printf implementation. |
| |
| Options can be given to the compiler and linker by setting |
| environment variables before running configure. A few of the more |
| important ones: |
| |
| CC : The C compiler to use |
| CPPFLAGS : Flags for the C preprocesser such as -I and -D |
| CFLAGS : C compiler flags |
| |
| The most important use of this is to set the |
| optimization/debugging flags. For instance, to compile with no |
| debugging information at all, run configure as: |
| |
| CFLAGS=-O2 ./configure # Bourne compatible shells (sh/bash/zsh) |
| |
| or, |
| |
| setenv CFLAGS -O2 ; ./configure # csh and variants |
| |
| |
| Installation directories |
| ======================== |
| |
| The location of the installed files is determined by the --prefix |
| and --exec-prefix options given to configure. There are also more |
| detailed flags to control individual directories. However, the |
| use of these flags is not tested. |
| |
| One particular detail to note, is that the architecture-dependent |
| include file glibconfig.h is installed in: |
| |
| $exec_prefix/lib/glib/include/ |
| |
| if you have a version in $prefix/include, this is out of date |
| and should be deleted. |
| |
| .pc files for the various libraries are installed in |
| $exec_prefix/lib/pkgconfig to provide information when compiling |
| other packages that depend on GTK+. If you set PKG_CONFIG_PATH |
| so that it points to this directory, then you can get the |
| correct include flags and library flags for compiling a GLib |
| application with: |
| |
| pkg-config --cflags glib-2.0 |
| pkg-config --libs glib-2.0 |
| |
| |
| Cross-compiling GLib |
| ==================== |
| |
| Cross-compilation is the proceess of compiling a program or |
| library on a different architecture or operating system then |
| it will be run upon. GLib is slightly more difficult to |
| cross-compile than many packages because much of GLib is |
| about hiding differences between different systems. |
| |
| These notes cover things specific to cross-compiling GLib; |
| for general information about cross-compilation, see the |
| autoconf info pages. |
| |
| GLib tries to detect as much information as possible about |
| the target system by compiling and linking programs without |
| actually running anything; however, some information GLib |
| needs is not available this way. This information needs |
| to be provided to the configure script via a "cache file" |
| or by setting the cache variables in your environment. |
| |
| As an example of using a cache file, to cross compile for |
| the "MingW32" Win32 runtine environment on a Linux system, |
| create a file 'win32.cache' with the following contents: |
| |
| === |
| glib_cv_long_long_format=ll |
| glib_cv_stack_grows=no |
| === |
| |
| Then execute the following commands: |
| |
| === |
| PATH=/path/to/mingw32-compiler/bin:$PATH |
| chmod a-w win32.cache # prevent configure from changing it |
| ./configure --cache-file=win32.cache --host=mingw32 |
| === |
| |
| The complete list of cache file variables follows. Most |
| of these won't need to be set in most cases. |
| |
| Cache file variables |
| ==================== |
| |
| glib_cv_long_long_format=[ll/q/I64] |
| |
| Format used by printf and scanf for 64 bit integers. "ll" is |
| the C99 standard, and what is used by the 'trio' library |
| that GLib builds if your printf() is insufficiently capable. |
| Doesn't need to be set if you are compiling using trio. |
| |
| glib_cv_stack_grows=[yes/no] |
| |
| Whether the stack grows up or down. Most places will want "no", |
| A few architectures, such as PA-RISC need "yes". |
| |
| glib_cv_working_bcopy=[yes/no] |
| |
| Whether your bcopy can handle overlapping copies. Only needs to be set |
| if you don't have memmove. (Very unlikely) |
| |
| glib_cv_sane_realloc=[yes/np] |
| |
| Whether your realloc() conforms to ANSI C and can handle NULL as |
| the first argument. Defaults to "yes" and probably doesn't need to be set. |
| |
| glib_cv_have_strlcpy=[yes/no] |
| |
| Whether you have strlcpy that matches OpenBSD. Defaults to "no", |
| which is safe, since GLib uses a built-in version in that case. |
| |
| glib_cv_va_val_copy=[yes/no] |
| |
| Whether va_list can be copied as a pointer. If set to "no", |
| then memcopy will be used. Only matters if you don't have |
| va_copy or __va_copy. (So, doesn't matter for GCC.) Defaults |
| to "yes" which is slightly more common than "no". |
| |
| glib_cv_rtldglobal_broken=[yes/no] |
| |
| Whether you have a bug found in OSF/1 v5.0. Defaults to "no". |
| |
| glib_cv_uscore=[yes/no] |
| |
| Whether an underscore needs to be prepended to symbols when |
| looking them up via dlsym. Only needs to be set if your system |
| uses dlopen/dlsym. |
| |
| ac_cv_func_posix_getpwuid_r=[yes/no] |
| |
| Whether you have a getpwuid_r function (in your C library, |
| not your thread library) that conforms to the POSIX spec. |
| (Takes a 'struct passwd **' as the final argument) |
| |
| ac_cv_func_nonposix_getpwuid_r=[yes/no] |
| |
| Whether you have some variant of getpwuid_r that doesn't |
| conform to to the POSIX spec, but GLib might be able to |
| use (or might segfault.) Only needs to be set if |
| ac_cv_func_posix_getpwuid_r is not set. It's safest to set |
| this to "no". |
| |
| glib_cv_use_pid_surrogate=[yes/no] |
| |
| Whether to use a setpriority() on the PID of the thread as |
| a method for setting the priority of threads. This only |
| needs to be set when using POSIX threads. |
| |
| ac_cv_func_printf_unix98=[yes/no] |
| |
| Whether your printf() family supports Unix98 style %N$ |
| positional parameters. Defaults to "no". |
| |
| ac_cv_func_vsnprintf_c99=[yes/no] |
| |
| Whether you have a vsnprintf() with C99 semantics. (C99 semantics |
| means returns the number of bytes that would have been written |
| had the output buffer had enough space.). Defaults to "no". |
