fftw: clean up funrolling, make avx into a package option

math/fftw/Makefile

@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.70 2021/05/15 10:19:33 nia Exp $
+# $NetBSD: Makefile,v 1.71 2021/05/15 11:05:29 nia Exp $
 
 DISTNAME=	fftw-3.3.9
 PKGREVISION=	5
@@ -49,30 +49,16 @@ CONFIGURE_DIRS+=	build/${p}
 MAKE_DIRS+=		build/${p}
 .endfor
 
-# SIMD stuff needs some baseline.
-GCC_REQD+=	4.9
-
-# FFTW offers SIMD runtime detection, but wants explicit build options.
-# These should be generic for all platforms. Compiler needs intrinsics
-# for this, but those have been present for quite some time.
-FFTW_FLOAT_OPTS=	--enable-generic-simd128 --enable-generic-simd256
-FFTW_DOUBLE_OPTS=	--enable-generic-simd128 --enable-generic-simd256
-
-.if ${MACHINE_ARCH} == "x86_64"
-FFTW_FLOAT_OPTS+=	--enable-sse --enable-sse2 --enable-avx
-FFTW_DOUBLE_OPTS+=	--enable-sse2 --enable-avx
-FFTW_FLOAT_OPTS+=	--enable-avx2 --enable-avx512 --enable-avx-128-fma
-FFTW_DOUBLE_OPTS+=	--enable-avx2 --enable-avx512 --enable-avx-128-fma
+# Generic compiler vector abstractions.
+.if !empty(PKGSRC_COMPILER:M*gcc*) || !empty(PKGSRC_COMPILER:M*clang*)
+FFTW_FLOAT_OPTS+=	--enable-generic-simd128 --enable-generic-simd256
+FFTW_DOUBLE_OPTS+=	--enable-generic-simd128 --enable-generic-simd256
 .endif
 
-# TODO: Add the above for other architectures.
-
-# Avoid -march=core-avx2 messing up with user CFLAGS.
-# This rules out gcc 4.8 for AVX2 builds.
-SUBST_CLASSES+=		hardcore
-SUBST_STAGE.hardcore=	pre-configure
-SUBST_FILES.hardcore=	configure configure.ac
-SUBST_SED.hardcore=	-e "s,march=core-avx2,march=donotbother,g"
+.if ${MACHINE_ARCH} == "x86_64"
+FFTW_FLOAT_OPTS+=	--enable-sse --enable-sse2
+FFTW_DOUBLE_OPTS+=	--enable-sse2
+.endif
 
 pre-configure:
 .for d in ${CONFIGURE_DIRS}

math/fftw/buildlink3.mk

@@ -1,4 +1,4 @@
-# $NetBSD: buildlink3.mk,v 1.10 2021/05/15 10:19:33 nia Exp $
+# $NetBSD: buildlink3.mk,v 1.11 2021/05/15 11:05:29 nia Exp $
 
 BUILDLINK_TREE+=	fftw
 
@@ -9,8 +9,6 @@ BUILDLINK_API_DEPENDS.fftw+=	fftw>=3.0
 BUILDLINK_ABI_DEPENDS.fftw+=	fftw>=3.1nb1
 BUILDLINK_PKGSRCDIR.fftw?=	../../math/fftw
 
-GCC_REQD+=	4.9
-
 pkgbase := fftw
 .include "../../mk/pkg-build-options.mk"
 .if ${PKG_BUILD_OPTIONS.fftw:Mmpi}

math/fftw/options.mk

@@ -1,20 +1,26 @@
-# $NetBSD: options.mk,v 1.5 2021/05/07 12:31:22 thor Exp $
+# $NetBSD: options.mk,v 1.6 2021/05/15 11:05:29 nia Exp $
 
 PKG_OPTIONS_VAR=	PKG_OPTIONS.fftw
 # fftw (double) and fftwf (single) are always built, you can add
 # fftwl (long) and fftwq (quad).
 PKG_SUPPORTED_OPTIONS=	fftw-fortran openmp mpi fftw-long fftw-quad
-# Enable fortran support by default on platforms supported by lang/g95.
-.if (${MACHINE_ARCH} == i386 || ${MACHINE_ARCH} == x86_64 || \
-	${MACHINE_ARCH} == ia64 || !empty(MACHINE_ARCH:Mpowerpc*) || \
-	${MACHINE_ARCH} == hppa || !empty(MACHINE_ARCH:Msparc*) || \
-	${MACHINE_ARCH} == alpha || !empty(MACHINE_ARCH:Mmips*))
-# ...but disable it until lang/g95 issue is resolved.
-#PKG_SUGGESTED_OPTIONS=	fftw-fortran
+
+.include "../../mk/bsd.prefs.mk"
+
+.if ${MACHINE_ARCH} == "x86_64"
+PKG_SUPPORTED_OPTIONS+=	avx
 .endif
 
 .include "../../mk/bsd.options.mk"
 
+.if !empty(PKG_OPTIONS:Mavx)
+GCC_REQD+=		4.9
+.  for opt in avx avx2 avx512 avx-128-fma
+FFTW_FLOAT_OPTS+=	--enable-${opt}
+FFTW_DOUBLE_OPTS+=	--enable-${opt}
+.  endfor
+.endif
+
 .if !empty(PKG_OPTIONS:Mfftw-fortran)
 USE_LANGUAGES+=		fortran77
 .else
@@ -27,20 +33,20 @@ PLIST.omp=		yes
 CONFIGURE_ARGS+=	--enable-openmp
 .endif
 
-PLIST_VARS+=	mpi
+PLIST_VARS+=		mpi
 .if !empty(PKG_OPTIONS:Mmpi)
-PLIST.mpi=	yes
+PLIST.mpi=		yes
 CONFIGURE_ARGS+=	--enable-mpi
 .include "../../mk/mpi.buildlink3.mk"
 .endif
 
-PLIST_VARS+=	long quad
-
+PLIST_VARS+=		long
 .if !empty(PKG_OPTIONS:Mfftw-long)
 FFTW_PRECISION+=	long-double
 PLIST.long=		yes
 .endif
 
+PLIST_VARS+=		quad
 .if !empty(PKG_OPTIONS:Mfftw-quad)
 FFTW_PRECISION+=	quad-precision
 PLIST.quad=		yes