This is autogenerated from docs/changes.xml by

  $ make -C docs/ changes && mv build/CHANGES .

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

There were at least a couple of issues with building OTEL support.

It only worked with GNU make due to the use of ifeq, even gmake had some
issues.

Debug builds were broken due to trying to pass --debug to cargo which is
the default and isn't a valid option.

This 'fixes' things by doing 'release' builds of OTEL by default.

Passing D=1 to make will generate 'debug' builds but this as previously
with D= etc, only works with GNU make.

We make use of the '--emit link=' rustc option to place the libotel.a
static library into build/lib

This is good, it consolidates the static libraries into one place and it
simplifies the build scripts.

While we're at it pretty print the cargo command by default.

Fixes: 9d3dcb800 ("otel: add build tooling to include otel code")
Link: <https://github.com/nginx/unit/pull/1520#issuecomment-2556265063>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Rust code relies on macOS-provided frameworks for TLS.

Fixes: 9d3dcb800 ("otel: add build tooling to include otel code")
[ Tweaked subject prefix. Some minor tweaks for current changes. -
  Andrew ]
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Fixes: 9d3dcb800 ("otel: add build tooling to include otel code")
[ Commit subject, s/NXT_OTEL_LIB_LOC/NXT_OTEL_LIB_STATIC/ and placement
  of NXT_OTEL_LIB_STATIC tweaked as per @thresheek - Andrew ]
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

The static library is supposed to be specified prior to its
dependencies.
Also, no need to put an otel static library inside libnxt static
library, as we explicitely link unit binary with otel static library
anyway.

This fixes the following build problems:

- macOS:

      Finished `release` profile [optimized] target(s) in 58.07s
    AR     build/lib/libnxt.a
    LD     build/sbin/unitd
  ld: archive member 'libotel.a' not a mach-o file in '/private/tmp/unit-20241219-8965-yb46xp/build/lib/libnxt.a'
  clang: error: linker command failed with exit code 1 (use -v to see invocation)

- Ubuntu 22 (./configure --otel):

  LD     build/sbin/unitd
cc -Wl,-E  -o build/sbin/unitd -pipe -fPIC -fvisibility=hidden -fno-strict-overflow -funsigned-char -std=gnu11 -O -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -fno-strict-aliasing -Wmissing-prototypes -Werror -g    \
	build/src/nxt_main.o  build/lib/libnxt.a \
	-lm -lrt  -lpthread   \
                      \
                    -lpcre2-8 -lssl -lcrypto src/otel/target/release/libotel.a
/usr/bin/ld: src/otel/target/release/libotel.a(reqwest-97d1376dfb77d784.reqwest.cb371ce8e1e3945e-cgu.04.rcgu.o): in function `core::ptr::drop_in_place<alloc::vec::Vec<reqwest::tls::Certificate>>':
reqwest.cb371ce8e1e3945e-cgu.04:(.text._ZN4core3ptr69drop_in_place$LT$alloc..vec..Vec$LT$reqwest..tls..Certificate$GT$$GT$17h9b62679cc7161be5E+0x30): undefined reference to `X509_free'

Fixes: 9d3dcb800 ("otel: add build tooling to include otel code")
[ Tweaked subject prefix. s/NXT_OTEL_LIB_LOC/NXT_OTEL_LIB_STATIC/ - Andrew ]
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

This better matches existing naming convention, e.g NXT_LIB_STATIC

Fixes: 9d3dcb800 ("otel: add build tooling to include otel code")
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>