> On Aug 20, 2025, at 11:44, John Naylor <[email protected]> wrote:
> 
> On Tue, Aug 19, 2025 at 10:43 PM Álvaro Herrera <[email protected]> wrote:
>> 
>> Also, I suspect you should do something about Meson, but I don't know
>> what that would look like.
> 
> It seems to work already on Meson:
> 
> $ <build>
> $ touch src/backend/utils/mb/Unicode/win874_to_utf8.map
> $ <build>
> building for debug
> ninja: Entering directory `build-debug'
> [2/2] Linking target src/backend/utils/mb/conversion_procs/utf8_and_win.so
> 
> 

I just tried meson build, it seems to only rebuild the corresponding libs 
without rebuilding Postgres binaries:

```
chaol@ChaodeMacBook-Air build % touch 
../src/backend/utils/mb/Unicode/euc_cn_to_utf8.map
chaol@ChaodeMacBook-Air build % ninja -v
[1/2] cc -Isrc/backend/utils/mb/conversion_procs/utf8_and_euc_cn.dylib.p 
-Isrc/include -I../src/include -I/opt/homebrew/opt/lz4/include 
-I/opt/homebrew/Cellar/openssl@3/3.6.0/include -I/opt/homebrew/opt/zstd/include 
-fdiagnostics-color=always -Wall -Winvalid-pch -O0 -g -isysroot 
/Library/Developer/CommandLineTools/SDKs/MacOSX15.5.sdk -fno-strict-aliasing 
-fwrapv -fexcess-precision=standard -Wmissing-prototypes -Wpointer-arith 
-Werror=vla -Werror=unguarded-availability-new -Wendif-labels 
-Wmissing-format-attribute -Wcast-function-type -Wformat-security 
-Wdeclaration-after-statement -Wmissing-variable-declarations 
-Wno-unused-command-line-argument -Wno-compound-token-split-by-macro 
-Wno-format-truncation -Wno-cast-function-type-strict -fvisibility=hidden -MD 
-MQ 
src/backend/utils/mb/conversion_procs/utf8_and_euc_cn.dylib.p/utf8_and_euc_cn_utf8_and_euc_cn.c.o
 -MF 
src/backend/utils/mb/conversion_procs/utf8_and_euc_cn.dylib.p/utf8_and_euc_cn_utf8_and_euc_cn.c.o.d
 -o 
src/backend/utils/mb/conversion_procs/utf8_and_euc_cn.dylib.p/utf8_and_euc_cn_utf8_and_euc_cn.c.o
 -c ../src/backend/utils/mb/conversion_procs/utf8_and_euc_cn/utf8_and_euc_cn.c
[2/2] cc  -o src/backend/utils/mb/conversion_procs/utf8_and_euc_cn.dylib 
src/backend/utils/mb/conversion_procs/utf8_and_euc_cn.dylib.p/utf8_and_euc_cn_utf8_and_euc_cn.c.o
 -Wl,-dead_strip_dylibs -Wl,-headerpad_max_install_names 
-Wl,-undefined,dynamic_lookup -bundle -Wl,-undefined,dynamic_lookup -isysroot 
/Library/Developer/CommandLineTools/SDKs/MacOSX15.5.sdk 
-Wl,-no_warn_duplicate_libraries -Wl,-rpath,/opt/homebrew/opt/lz4/lib 
-Wl,-rpath,/opt/homebrew/Cellar/openssl@3/3.6.0/lib 
-Wl,-rpath,/opt/homebrew/opt/zstd/lib -fvisibility=hidden -bundle_loader 
/Users/chaol/Documents/code/postgresql/build/src/backend/postgres -lldap -lxml2 
/opt/homebrew/opt/lz4/lib/liblz4.dylib -lpam 
/opt/homebrew/Cellar/openssl@3/3.6.0/lib/libssl.dylib 
/opt/homebrew/Cellar/openssl@3/3.6.0/lib/libcrypto.dylib -lz 
/opt/homebrew/opt/zstd/lib/libzstd.dylib -lm
chaol@ChaodeMacBook-Air build %
```

Is that expected? I think we need Postgres executables to be rebuilt then we 
can run tests.

Best regards,
--
Chao Li (Evan)
HighGo Software Co., Ltd.
https://www.highgo.com/




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