* build: update m4/ax_pthread.m4 from serial 23 -> serial 31
Update ax_pthread.m4 to the latest version from the autoconf-archive
project.
Signed-off-by: Sam James <sam@gentoo.org>
* build: properly detect AR, CC, RANLIB
It's necessary to be able to override choice of AR/CC/RANLIB and other toolchain
variables/tools for cross-compilation, testing with other toolchains, and
to ensure the compiler chosen by the user is actually used for the build.
Previously, GNU_PREFIX was kind-of used for this but this isn't a standard
variable (at all) and it wasn't applied consistently anyway.
We now use the standard autoconf mechanisms for finding these tools.
(RANLIB is already covered by LT_INIT.)
Signed-off-by: Sam James <sam@gentoo.org>
* build: use $(MAKE)
This ensures that parallel make works correctly, as otherwise, a fresh
make job will be started without the jobserver fd, and hence
not know about its parent, forcing -j1.
* build: respect CPPFLAGS, LDFLAGS
- CPPFLAGS is for the C preprocessor (usually for setting defines)
- LDFLAGS should be placed before objects for certain flags to work
(e.g. -Wl,--as-needed)
Signed-off-by: Sam James <sam@gentoo.org>
Co-authored-by: Luca Deri <lucaderi@users.noreply.github.com>
* renamed --with-llvm-sanitizer to --with-sanitizer
* disable all optimisations (-O0) if --with-sanitizer set,
no functions/paramaters/variables will be optimised, improves debugging
* enable undefined behaviour sanitizer (ubsan)
* enable leak sanitizer (lsan)
* check if -fsanitize=fuzzer is available and --enable-fuzztargets set,
fail if not (only supported by clang)
* include level 3 debugging information (-g3), improves macro debugging
* disabled ubsan misaligned pointer access and lshift overflow
Signed-off-by: Toni Uhlig <matzeton@googlemail.com>
