This first checks what is required for ISO C99 support and sets the relevant
compiler parameters and if no C99 compiler is found, it checks for a
C89 compiler. This enables us to check for and use C89/C99 functions
that gcc hides from us without the correct compiler parameters.
Apparently gcc warns that GstMiniObject is not castable to
GstEvent/Message/Buffer due to them containing 64bit variables, even
though ARM hackers claim that those only need 4byte alignment. And as
long as gcc behaves that way, this warning is not very useful.
So we'll remove the warning until this problem is fixed.
https://bugzilla.gnome.org/show_bug.cgi?id=615698
Check for ability to divide uint128_t values, since that what
we actually use it for (in gstutils.c). The existence of a
uint128_t type doesn't mean the compiler can actually generate
code for it. Also make sure that we can actually link the
result successfully.
Fixes bug #614767.
This is how we do it in the other modules, and gets rid of the annoying
dirty status for common when doing git status (at least once you clean
out the old files from there).
prctl is supposed to take 5 arguments. It used to work with 2 arguments on some
versions of libc because it is defined as a varags function there.
See #611911
It triggers for a lot of GStreamer API (even though those triggers are
wrong most of the time).
I missed it because it only triggers with -O2, and I was using -O0.
None of these flags cause warnings anymore, so no fixes necessary.
The flags are:
-Wformat-nonliteral
-Wformat-security
-Wold-style-definition
-Wcast-align
-Winline
-Winit-self
-Wmissing-include-dirs
-Waddress
-Waggregate-return
-Wno-multichar
-Wnested-externs
The alignment guaranteed by malloc is not always sufficient. E.g. vector
instructions or hardware subsystems want specifically aligned buffers. The
attached patch will use posix_memalign if available to allocate buffers.
The desired alignment can be set when running configure using the new
--with-buffer-alignment option.
This changes some APIs in compatible ways:
- Some functions now take "const char *" arguments, not "char *"
- Some structs now have "conts char *" members, not "char *"
The changes may cause warnings when compiling with the right warning
flags. You've been warned.
Also adds -Wwrite-strings as a warning flag in configure.ac.
https://bugzilla.gnome.org/show_bug.cgi?id=611692
Adds that warning to configure.ac
Includes a tiny change of the GST_BOILERPLATE_FULL() macro:
The get_type() function is no longer declared before being defined.
https://bugzilla.gnome.org/show_bug.cgi?id=611692
Add check to make sure gst-plugin-scanner really gets installed where
we will look for it later, ie. paths and prefixes are set at configure
time and not specified via make.
Fixes#609941.
We require threads to be supported in any case and defining this
will simplify the mutex, condition variable, etc. macros from gthread
to not always check if threads are really supported.
Fixes bug #607481.
Move SHAVE_INIT behind all other checks, in particular AG_GST_CHECK_CHECKS.
This should fix problems with header checking and checking for localtime_r,
which causes compilation errors with clean checkouts where common/shave has
not been created yet when those checks are run. It seems like SHAVE_INIT
changes the environment so that checks depending on a compiler need shave
to exist at that point, which will fail if AC_OUTPUT hasn't created it yet.
Fixes#605930.
