In my ongoing bulk, math/fftw3 failed to build because gfortran was
junked during configure:
checking for gfortran... gfortran
...
configure: error: cannot compile a simple Fortran program
According to config.log the error was this:
configure:21131: gfortran -c -g -O2 conftest.f >&5
/usr/ports/pobj/fftw3-3.3.10-double/fftw-3.3.10/configure: gfortran: not found
The below diff switches to the fortran module and builds and passes
regress on amd64 and arm64. port-lib-depends-check complains, which I
think is normal and unavoidable:
fftw3-common-3.3.10p1(math/fftw3,-common):
Extra: gfortran.10 quadmath.5
I think fixing it this way means that we need to add
USE_NOBTCFI-aarch64 = Yes# fortran
to quite a few ports, unless someone can confirm that this is no longer
needed with lang/gcc/15 - as the XXX in fortran.port.mk suggests.
So perhaps there is a better way using some autoconf magic that disables
gfortran...
Index: Makefile
===================================================================
RCS file: /cvs/ports/math/fftw3/Makefile,v
diff -u -p -r1.43 Makefile
--- Makefile 11 Aug 2025 09:11:20 -0000 1.43
+++ Makefile 23 Jul 2026 20:06:18 -0000
@@ -10,12 +10,12 @@ FULLPKGPATH-main= math/fftw3,-main${FLAV
FULLPKGNAME-common= fftw3-common-${V}
SHARED_LIBS= fftw3 7.1 \
fftw3f 7.1 \
- fftw3_threads 1.2 \
- fftw3f_threads 1.2
+ fftw3_threads 1.3 \
+ fftw3f_threads 1.3
CATEGORIES= math
-REVISION-main= 1
-REVISION-common= 0
+REVISION-main= 2
+REVISION-common= 1
HOMEPAGE= https://www.fftw.org/
@@ -32,6 +32,8 @@ MULTI_PACKAGES= -main -common
FLAVORS= double float
FLAVOR?= double
+
+MODULES += fortran
USE_GMAKE= Yes
CONFIGURE_STYLE=gnu
