From d1bd7573cb592f0c7fecc8a273fe429f32c36934 Mon Sep 17 00:00:00 2001
From: Vicente Adolfo Bolea Sanchez <vicente.bolea@kitware.com>
Date: Mon, 18 Nov 2024 15:02:08 -0500
Subject: [PATCH] cmake: refactor generate-adios2-config.sh

---
 .../install/post/generate-adios2-config.sh.in | 20 +++++++++----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/cmake/install/post/generate-adios2-config.sh.in b/cmake/install/post/generate-adios2-config.sh.in
index a789810da4..bbe4f7ab00 100755
--- a/cmake/install/post/generate-adios2-config.sh.in
+++ b/cmake/install/post/generate-adios2-config.sh.in
@@ -4,6 +4,8 @@
 unset MAKEFLAGS
 unset MAKE
 
+declare PREFIX
+
 function make_target_flags() {
   local tgt=$1
   sleep 1
@@ -58,21 +60,17 @@ function prefixify() {
   echo "$@" | sed "s|${PREFIX}|\${ADIOS2_PREFIX}|g"
 }
 
-PREFIX="$1"
+###########################################################################
+# Main
+arg_prefix="$1"
 
-if [ "${1:0:1}" != "/" ]
+# Prefix should be an absolute path, but if it's not, make it absolute
+if [ "${arg_prefix:0:1}" != "/" ]
 then
-  # Convert relative paths to absolute based on DESTDIR
-  PREFIX="${DESTDIR:-$(pwd)}/$1"
-else
-  # Check if the DESTDIR directory exists and prepend it to PREFIX
-  if [ -d "${DESTDIR}" ]
-  then
-    PREFIX="${DESTDIR}$1"
-  fi
+  PREFIX="$PWD/$arg_prefix"
 fi
 
-shift
+PREFIX="${DESTDIR}${arg_prefix}"
 
 CMAKE="@CMAKE_COMMAND@"
 SOURCE_DIR="@ADIOS2_SOURCE_DIR@/cmake/install/post/adios2-config-dummy"