Thread

1. Disable LLVM bitcode generation with pgxs.mk framework.

   Xing Guo <higuoxing@gmail.com> — 2024-03-12T13:38:23Z

   Hi hackers,
   
   When the PostgreSQL server is configured with --with-llvm, the pgxs.mk
   framework will generate LLVM bitcode for extensions automatically.
   Sometimes, I don't want to generate bitcode for some extensions. I can
   turn off this feature by specifying with_llvm=0 in the make command.
   
   ```
   make with_llvm=0
   ```
   
   Would it be possible to add a new switch in the pgxs.mk framework to
   allow users to disable this feature? E.g., the Makefile looks like:
   
   ```
   WITH_LLVM=no
   PG_CONFIG = pg_config
   PGXS := $(shell $(PG_CONFIG) --pgxs)
   ```
   
   Best Regards,
   Xing
   
   
   
   

2. Re: Disable LLVM bitcode generation with pgxs.mk framework.

   Daniel Gustafsson <daniel@yesql.se> — 2024-03-12T14:40:19Z

   > On 12 Mar 2024, at 14:38, Xing Guo <higuoxing@gmail.com> wrote:
   
   > Would it be possible to add a new switch in the pgxs.mk framework to
   > allow users to disable this feature?
   
   Something like that doesn't seem unreasonable I think.
   
   --
   Daniel Gustafsson
   
   
   
   
   

3. Re: Disable LLVM bitcode generation with pgxs.mk framework.

   Xing Guo <higuoxing@gmail.com> — 2024-03-13T00:01:31Z

   > On Tue, Mar 12, 2024 at 10:40 PM Daniel Gustafsson <daniel@yesql.se> wrote:
   >
   > > On 12 Mar 2024, at 14:38, Xing Guo <higuoxing@gmail.com> wrote:
   >
   > > Would it be possible to add a new switch in the pgxs.mk framework to
   > > allow users to disable this feature?
   >
   > Something like that doesn't seem unreasonable I think.
   
   Thanks.
   
   I added a new option NO_LLVM_BITCODE to pgxs. I'm not sure if the name
   is appropriate.
   
   > --
   > Daniel Gustafsson
   >
   

4. Re: Disable LLVM bitcode generation with pgxs.mk framework.

   Peter Eisentraut <peter@eisentraut.org> — 2024-03-13T06:45:26Z

   On 12.03.24 14:38, Xing Guo wrote:
   > When the PostgreSQL server is configured with --with-llvm, the pgxs.mk
   > framework will generate LLVM bitcode for extensions automatically.
   > Sometimes, I don't want to generate bitcode for some extensions. I can
   > turn off this feature by specifying with_llvm=0 in the make command.
   > 
   > ```
   > make with_llvm=0
   > ```
   > 
   > Would it be possible to add a new switch in the pgxs.mk framework to
   > allow users to disable this feature? E.g., the Makefile looks like:
   > 
   > ```
   > WITH_LLVM=no
   > PG_CONFIG = pg_config
   > PGXS := $(shell $(PG_CONFIG) --pgxs)
   > ```
   
   Can't you just put the very same with_llvm=0 into the makefile?
   
   
   
   
   

5. Re: Disable LLVM bitcode generation with pgxs.mk framework.

   Xing Guo <higuoxing@gmail.com> — 2024-03-13T07:18:33Z

   > On Wed, Mar 13, 2024 at 2:45 PM Peter Eisentraut <peter@eisentraut.org> wrote:
   >
   > On 12.03.24 14:38, Xing Guo wrote:
   > > When the PostgreSQL server is configured with --with-llvm, the pgxs.mk
   > > framework will generate LLVM bitcode for extensions automatically.
   > > Sometimes, I don't want to generate bitcode for some extensions. I can
   > > turn off this feature by specifying with_llvm=0 in the make command.
   > >
   > > ```
   > > make with_llvm=0
   > > ```
   > >
   > > Would it be possible to add a new switch in the pgxs.mk framework to
   > > allow users to disable this feature? E.g., the Makefile looks like:
   > >
   > > ```
   > > WITH_LLVM=no
   > > PG_CONFIG = pg_config
   > > PGXS := $(shell $(PG_CONFIG) --pgxs)
   > > ```
   >
   > Can't you just put the very same with_llvm=0 into the makefile?
   
   Ah, you're right. I can set it by overriding that variable.
   
   ```
   override with_llvm=no
   ```