[mlir][CAPI] Fix inline function declaration

Add `static` keyword, otherwise build fail with linker error for some cases.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D94496

diff --git a/mlir/include/mlir-c/AffineExpr.h b/mlir/include/mlir-c/AffineExpr.h
index ec44568..d5c6e7b 100644 (file)
--- a/mlir/include/mlir-c/AffineExpr.h
+++ b/mlir/include/mlir-c/AffineExpr.h
@@ -50,7 +50,7 @@ MLIR_CAPI_EXPORTED bool mlirAffineExprEqual(MlirAffineExpr lhs,
 
 /// Returns `true` if the given affine expression is a null expression. Note
 /// constant zero is not a null expression.
-inline bool mlirAffineExprIsNull(MlirAffineExpr affineExpr) {
+inline static bool mlirAffineExprIsNull(MlirAffineExpr affineExpr) {
   return affineExpr.ptr == NULL;
 }