From 4faca62679ef0850794934b31a091c1f079aca0c Mon Sep 17 00:00:00 2001
From: Dana Robinson <derobins@hdfgroup.org>
Date: Mon, 31 Dec 2018 05:04:30 -0800
Subject: Eliminated the need for a separate script variable.

---
 configure.ac             |  7 +------
 testpar/testpflush.sh.in | 15 +++++++++++++--
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/configure.ac b/configure.ac
index 89adcae..9b890fd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -841,13 +841,9 @@ fi
 ##               command).  The value of this variable is
 ##               substituted in *.in files.
 ##
-##    RUNPARALLELSCRIPT -- Identical to RUNPARALLEL but without
-##               the special makefile protection for environment
-##               variables.
 AC_SUBST([PARALLEL])
 AC_SUBST([RUNSERIAL])
 AC_SUBST([RUNPARALLEL])
-AC_SUBST([RUNPARALLELSCRIPT])
 AC_SUBST([TESTPARALLEL])
 
 ## ----------------------------------------------------------------------
@@ -2481,10 +2477,9 @@ case "X-$enable_parallel" in
       PAC_PROG_FC_MPI_CHECK
     fi
 
-    ## Set RUNPARALLEL and RUNPARALLELSCRIPT to mpiexec if not set yet.
+    ## Set RUNPARALLEL to mpiexec if not set yet.
     if test "X$PARALLEL" = "Xyes" -a -z "$RUNPARALLEL"; then
       RUNPARALLEL="mpiexec -n \$\${NPROCS:=6}"
-      RUNPARALLELSCRIPT="mpiexec -n ${NPROCS:=6}"
     fi
     ;;
 
diff --git a/testpar/testpflush.sh.in b/testpar/testpflush.sh.in
index f2ce029..02f0e26 100644
--- a/testpar/testpflush.sh.in
+++ b/testpar/testpflush.sh.in
@@ -32,6 +32,17 @@ if test -z "$srcdir"; then
    srcdir=.
 fi
 
+# Turn the $$ we use to avoid Autotools munging into $
+#
+# Allowing $$ to substitute in both the RUNPARALLEL string and the
+# regexp is intentional. There doesn't seem to be a way around
+# this using quote shenanigans. The downside is that there is a remote
+# chance that the shell's pid will match a number in the RUNPARALLEL
+# variable, but that seems less likely to cause problems than expecting
+# library builders to specify two almost identical versions of the
+# RUNPARALLEL command, one for use in scripts and one via Makefiles.
+RUNPARALLELSCRIPT=`echo "@RUNPARALLEL@" | sed "s/$$/\$/g"`
+
 # ==========================================
 # Run the first parallel flush test program
 # (note that we ignore any errors here)
@@ -41,7 +52,7 @@ echo "You may see complaints from mpiexec et al. that not all processes"
 echo "called MPI_Finalize(). This is an intended characteristic of the"
 echo "test and should not be considered an  error."
 echo "********************************************************************"
-@RUNPARALLELSCRIPT@ ./t_pflush1
+eval ${RUNPARALLELSCRIPT} ./t_pflush1
 
 
 # ===========================================
@@ -49,5 +60,5 @@ echo "********************************************************************"
 # The return code of this call is the return
 # code of the script.
 # ===========================================
-@RUNPARALLELSCRIPT@ ./t_pflush2
+eval ${RUNPARALLELSCRIPT} ./t_pflush2
 
-- 
cgit v0.12