diff --git a/sci-libs/fftw/fftw-2.1.5-r9.ebuild b/sci-libs/fftw/fftw-2.1.5-r9.ebuild
index bc142c731eb3e..496c5e5d578e3 100644
--- a/sci-libs/fftw/fftw-2.1.5-r9.ebuild
+++ b/sci-libs/fftw/fftw-2.1.5-r9.ebuild
@@ -29,18 +29,13 @@ PATCHES=(
 	"${FILESDIR}"/${P}-texinfo5.1.patch
 )
 
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
 pkg_setup() {
 	if [[ ${MERGE_TYPE} != binary ]] && use openmp; then
-		if ! tc-has-openmp; then
-			ewarn "OpenMP is not available in your current selected compiler"
-
-			if tc-is-clang; then
-				ewarn "OpenMP support in sys-devel/clang is provided by sys-libs/libomp,"
-				ewarn "which you will need to build ${CATEGORY}/${PN} with USE=\"openmp\""
-			fi
-
-			die "need openmp capable compiler"
-		fi
+		tc-check-openmp
 		FORTRAN_NEED_OPENMP=1
 	fi
 
diff --git a/sci-libs/fftw/fftw-3.3.5-r2.ebuild b/sci-libs/fftw/fftw-3.3.5-r2.ebuild
index e577bdcc4b54c..c9f3b9a5e9c91 100644
--- a/sci-libs/fftw/fftw-3.3.5-r2.ebuild
+++ b/sci-libs/fftw/fftw-3.3.5-r2.ebuild
@@ -28,18 +28,13 @@ RDEPEND="
 DEPEND="${RDEPEND}
 	test? ( dev-lang/perl )"
 
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
 pkg_setup() {
 	if [[ ${MERGE_TYPE} != binary ]] && use openmp; then
-		if ! tc-has-openmp; then
-			ewarn "OpenMP is not available in your current selected compiler"
-
-			if tc-is-clang; then
-				ewarn "OpenMP support in sys-devel/clang is provided by sys-libs/libomp,"
-				ewarn "which you will need to build ${CATEGORY}/${PN} with USE=\"openmp\""
-			fi
-
-			die "need openmp capable compiler"
-		fi
+		tc-check-openmp
 		FORTRAN_NEED_OPENMP=1
 	fi