Migrate to {{ stdlib("c") }} (#731)

The `sysroot*` syntax is getting phased out (conda-forge/conda-forge.github.io#2102).
The recommendation is to move to `{{ stdlib("c") }}`.

Ref rapidsai/build-planning#39

Authors:
  - Philip Hyunsu Cho (https://github.com/hcho3)

Approvers:
  - Bradley Dice (https://github.com/bdice)
  - https://github.com/jakirkham
  - Ray Douglass (https://github.com/raydouglass)

URL: #731

conda/recipes/cucim/conda_build_config.yaml

@@ -10,5 +10,8 @@ cuda_compiler:
 cuda11_compiler:
   - nvcc
 
-sysroot_version:
+c_stdlib:
+  - sysroot
+
+c_stdlib_version:
   - "2.17"

conda/recipes/cucim/meta.yaml

@@ -54,7 +54,7 @@ requirements:
     - cmake >=3.23.1,!=3.25.0
     - make
     - ninja
-    - sysroot_{{ target_platform }} {{ sysroot_version }}
+    - {{ stdlib("c") }}
   host:
     - click
     - cuda-version ={{ cuda_version }}

conda/recipes/libcucim/conda_build_config.yaml

@@ -10,7 +10,10 @@ cuda_compiler:
 cuda11_compiler:
   - nvcc
 
-sysroot_version:
+c_stdlib:
+  - sysroot
+
+c_stdlib_version:
   - "2.17"
 
 # The CTK libraries below are missing from the conda-forge::cudatoolkit package

conda/recipes/libcucim/meta.yaml

@@ -59,7 +59,7 @@ requirements:
     - cmake >=3.23.1,!=3.25.0
     - make
     - ninja
-    - sysroot_{{ target_platform }} {{ sysroot_version }}
+    - {{ stdlib("c") }}
     - yasm # [x86_64]
   host:
     - cuda-version ={{ cuda_version }}