2 files changed, 4 insertions, 4 deletions
diff --git a/pkgs/build-support/alternatives/blas/default.nix b/pkgs/build-support/alternatives/blas/default.nix
index fec2d0526bb3..91001bc85377 100644
--- a/pkgs/build-support/alternatives/blas/default.nix
+++ b/pkgs/build-support/alternatives/blas/default.nix
@@ -80,7 +80,7 @@ stdenv.mkDerivation {
   cp -L "$libblas" $out/lib/libblas${canonicalExtension}
   chmod +w $out/lib/libblas${canonicalExtension}
 
-'' + (if stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf" then ''
+'' + (if stdenv.hostPlatform.isElf then ''
   patchelf --set-soname libblas${canonicalExtension} $out/lib/libblas${canonicalExtension}
   patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libblas${canonicalExtension}):${lib.getLib blasProvider'}/lib" $out/lib/libblas${canonicalExtension}
 '' else lib.optionalString (stdenv.hostPlatform.isDarwin) ''
@@ -112,7 +112,7 @@ EOF
   cp -L "$libcblas" $out/lib/libcblas${canonicalExtension}
   chmod +w $out/lib/libcblas${canonicalExtension}
 
-'' + (if stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf" then ''
+'' + (if stdenv.hostPlatform.isElf then ''
   patchelf --set-soname libcblas${canonicalExtension} $out/lib/libcblas${canonicalExtension}
   patchelf --set-rpath "$(patchelf --print-rpath $out/lib/libcblas${canonicalExtension}):${lib.getLib blasProvider'}/lib" $out/lib/libcblas${canonicalExtension}
 '' else lib.optionalString stdenv.hostPlatform.isDarwin ''
diff --git a/pkgs/build-support/alternatives/lapack/default.nix b/pkgs/build-support/alternatives/lapack/default.nix
index cbc7bf25c797..2d62855b258a 100644
--- a/pkgs/build-support/alternatives/lapack/default.nix
+++ b/pkgs/build-support/alternatives/lapack/default.nix
@@ -57,7 +57,7 @@ stdenv.mkDerivation {
   cp -L "$liblapack" $out/lib/liblapack${canonicalExtension}
   chmod +w $out/lib/liblapack${canonicalExtension}
 
-'' + (lib.optionalString (stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf") ''
+'' + (lib.optionalString stdenv.hostPlatform.isElf ''
   patchelf --set-soname liblapack${canonicalExtension} $out/lib/liblapack${canonicalExtension}
   patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapack${canonicalExtension}):${lapackProvider'}/lib" $out/lib/liblapack${canonicalExtension}
 '') + ''
@@ -86,7 +86,7 @@ EOF
   cp -L "$liblapacke" $out/lib/liblapacke${canonicalExtension}
   chmod +w $out/lib/liblapacke${canonicalExtension}
 
-'' + (lib.optionalString (stdenv.hostPlatform.parsed.kernel.execFormat.name == "elf") ''
+'' + (lib.optionalString stdenv.hostPlatform.isElf ''
   patchelf --set-soname liblapacke${canonicalExtension} $out/lib/liblapacke${canonicalExtension}
   patchelf --set-rpath "$(patchelf --print-rpath $out/lib/liblapacke${canonicalExtension}):${lib.getLib lapackProvider'}/lib" $out/lib/liblapacke${canonicalExtension}
 '') + ''