From b648ec90a5724e441493185bbc9dfed8229a34e3 Mon Sep 17 00:00:00 2001
From: Yaakov Selkowitz <yselkowi@redhat.com>
Date: Tue, 18 Jul 2023 01:54:00 -0400
Subject: [PATCH] Disable mpich, openmpi in RHEL builds

These subpackages are not shipped in RHEL, so there is little value in
building them.  A few build fixes were needed for when both are
disabled, since enviroment-modules isn't installed then either.
---
 fftw.spec | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fftw.spec b/fftw.spec
index 83ff5b4..07bc6b9 100644
--- a/fftw.spec
+++ b/fftw.spec
@@ -1,9 +1,14 @@
+%if %{defined rhel}
+%bcond_with mpich
+%bcond_with openmpi
+%else
 %bcond_without mpich
 %ifarch s390 s390x
 %bcond_with openmpi
 %else
 %bcond_without openmpi
 %endif
+%endif
 %if %{with mpich}
 %global mpi_list %{?mpi_list} mpich
 %endif
@@ -277,9 +282,11 @@ library.
 %setup -q
 
 %build
+%if %{with mpich} || %{with openmpi}
 # Explicitly load shell support for the environment-modules package, used
 # below via 'module' pseudo-command.
 . /etc/profile.d/modules.sh
+%endif
 
 # Configure uses g77 by default, if present on system
 export F77=gfortran
@@ -359,9 +366,11 @@ done
 %install
 %prec_names
 
+%if %{with mpich} || %{with openmpi}
 # Explicitly load shell support for the environment-modules package, used
 # below via 'module' pseudo-command.
 source /etc/profile.d/modules.sh
+%endif
 
 for((iprec=0;iprec<%{nprec};iprec++)) ; do
     %make_install -C ${prec_name[iprec]}
@@ -384,9 +393,11 @@ find %{buildroot} -name \*.la -delete
 
 %check
 %prec_names
+%if %{with mpich} || %{with openmpi}
 # Explicitly load shell support for the environment-modules package, used
 # below via 'module' pseudo-command.
 . /etc/profile.d/modules.sh
+%endif
 
 bdir=$(pwd)
 for((iprec=0;iprec<%{nprec};iprec++)) ; do