[pve-devel] [PATCH proxmox-fuse-rs] Remove deprecated shared_flag() call from build script

[pve-devel] [PATCH proxmox-fuse-rs] Remove deprecated shared_flag() call from build script

[Kefu Chai]

Root cause:
The cc crate deprecated the shared_flag() method because it only
creates static libraries (.a files), making the shared_flag parameter
meaningless and confusing.

The warning indicated:
  warning: use of deprecated method `cc::Build::shared_flag`:
  cc only creates static libraries, setting this does nothing

Impact:
- shared_flag(false) was a no-op that did nothing
- Its removal does not change the build behavior
- The build still produces libglue.a as expected

Fix:
Remove the .shared_flag(false) call from the cc::Build chain.
The build defaults to static library output, which is what we want.

Verification:
- Build completes without warnings
- Generated library is still static (.a)
- No functional changes to the FUSE bindings

Signed-off-by: Kefu Chai <k.chai@proxmox.com>
---
 build.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/build.rs b/build.rs
index d75166e..f9dd5f1 100644
--- a/build.rs
+++ b/build.rs
@@ -11,10 +11,7 @@ fn main() {
 
     let mut cc = cc::Build::new();
 
-    cc.pic(true)
-        .shared_flag(false)
-        .opt_level(3)
-        .flag("-DFUSE_USE_VERSION=35");
+    cc.pic(true).opt_level(3).flag("-DFUSE_USE_VERSION=35");
 
     for flag in ccflags.split_ascii_whitespace() {
         cc.flag(flag);
-- 
2.47.3



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Re: [pve-devel] [PATCH proxmox-fuse-rs] Remove deprecated shared_flag() call from build script

[Kefu Chai]

Hi Wolfgang, could you please help review this change?
It's not a critical one, but it helps to address the warning from the
compiler.

On Mon Jan 5, 2026 at 10:05 PM CST, Kefu Chai wrote:
> Root cause:
> The cc crate deprecated the shared_flag() method because it only
> creates static libraries (.a files), making the shared_flag parameter
> meaningless and confusing.
>
> The warning indicated:
>   warning: use of deprecated method `cc::Build::shared_flag`:
>   cc only creates static libraries, setting this does nothing
>
> Impact:
> - shared_flag(false) was a no-op that did nothing
> - Its removal does not change the build behavior
> - The build still produces libglue.a as expected
>
> Fix:
> Remove the .shared_flag(false) call from the cc::Build chain.
> The build defaults to static library output, which is what we want.
>
> Verification:
> - Build completes without warnings
> - Generated library is still static (.a)
> - No functional changes to the FUSE bindings
>
> Signed-off-by: Kefu Chai <k.chai@proxmox.com>
> ---
>  build.rs | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/build.rs b/build.rs
> index d75166e..f9dd5f1 100644
> --- a/build.rs
> +++ b/build.rs
> @@ -11,10 +11,7 @@ fn main() {
>  
>      let mut cc = cc::Build::new();
>  
> -    cc.pic(true)
> -        .shared_flag(false)
> -        .opt_level(3)
> -        .flag("-DFUSE_USE_VERSION=35");
> +    cc.pic(true).opt_level(3).flag("-DFUSE_USE_VERSION=35");
>  
>      for flag in ccflags.split_ascii_whitespace() {
>          cc.flag(flag);



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