diff --git a/.ci/azure-pipelines/azure-pipelines.yml b/.ci/azure-pipelines/azure-pipelines.yml
index ab0576fdd8e..7d9c4a3ee27 100644
--- a/.ci/azure-pipelines/azure-pipelines.yml
+++ b/.ci/azure-pipelines/azure-pipelines.yml
@@ -71,9 +71,9 @@ jobs:
       esac
 
       target=Experimental
-      major=$(sed -ne 's/^SET(CPACK_PACKAGE_VERSION_MAJOR "\([0-9]*\)")\s*$/\1/p' CMakeLists.txt)
-      minor=$(sed -ne 's/^SET(CPACK_PACKAGE_VERSION_MINOR "\([0-9]*\)")\s*$/\1/p' CMakeLists.txt)
-      patch=$(sed -ne 's/^SET(CPACK_PACKAGE_VERSION_PATCH "\([0-9]*\)")\s*$/\1/p' CMakeLists.txt)
+      major=$(sed -ne 's/^SET(CPACK_PACKAGE_VERSION_MAJOR "\([0-9]*\)")\s*$/\1/ip' CMakeLists.txt)
+      minor=$(sed -ne 's/^SET(CPACK_PACKAGE_VERSION_MINOR "\([0-9]*\)")\s*$/\1/ip' CMakeLists.txt)
+      patch=$(sed -ne 's/^SET(CPACK_PACKAGE_VERSION_PATCH "\([0-9]*\)")\s*$/\1/ip' CMakeLists.txt)
       binary=$(curl --location-trusted http://ftp.osuosl.org/pub/osgeo/download/osgeo4w/$OSGEO4W_ARCH/release/qgis/$OSGEO4W_PKG/LATEST.sha | sed -e "s/:.*$//")
       (( binary++ )) || true
 
diff --git a/debian/rules b/debian/rules
index 13abea45ece..71dbc8749bc 100755
--- a/debian/rules
+++ b/debian/rules
@@ -46,9 +46,9 @@ endif
 
 DEB_BUILD_NAME ?= $(DISTRIBUTION)-$(DEB_BUILD_ARCH)
 
-QGIS_MAJOR=$(shell sed -ne 's/SET(CPACK_PACKAGE_VERSION_MAJOR "\([0-9]*\)")/\1/p' CMakeLists.txt)
-QGIS_MINOR=$(shell sed -ne 's/SET(CPACK_PACKAGE_VERSION_MINOR "\([0-9]*\)")/\1/p' CMakeLists.txt)
-QGIS_PATCH=$(shell sed -ne 's/SET(CPACK_PACKAGE_VERSION_PATCH "\([0-9]*\)")/\1/p' CMakeLists.txt)
+QGIS_MAJOR=$(shell sed -ne 's/SET(CPACK_PACKAGE_VERSION_MAJOR "\([0-9]*\)")/\1/ip' CMakeLists.txt)
+QGIS_MINOR=$(shell sed -ne 's/SET(CPACK_PACKAGE_VERSION_MINOR "\([0-9]*\)")/\1/ip' CMakeLists.txt)
+QGIS_PATCH=$(shell sed -ne 's/SET(CPACK_PACKAGE_VERSION_PATCH "\([0-9]*\)")/\1/ip' CMakeLists.txt)
 QGIS_ABI=$(QGIS_MAJOR).$(QGIS_MINOR).$(QGIS_PATCH)
 GRASS=grass$(subst .,,$(shell pkg-config --modversion grass|cut -d. -f1,2))
 GRASSVER=$(subst .,,$(shell pkg-config --modversion grass|cut -d. -f1))
diff --git a/ms-windows/osgeo4w/creatensis.pl b/ms-windows/osgeo4w/creatensis.pl
index f576e90e692..81d349d7989 100755
--- a/ms-windows/osgeo4w/creatensis.pl
+++ b/ms-windows/osgeo4w/creatensis.pl
@@ -284,13 +284,13 @@ my($major, $minor, $patch);
 
 open F, "../../CMakeLists.txt";
 while(<F>) {
-	if(/SET\(CPACK_PACKAGE_VERSION_MAJOR "(\d+)"\)/) {
+	if(/SET\(CPACK_PACKAGE_VERSION_MAJOR "(\d+)"\)/i) {
 		$major = $1;
-	} elsif(/SET\(CPACK_PACKAGE_VERSION_MINOR "(\d+)"\)/) {
+	} elsif(/SET\(CPACK_PACKAGE_VERSION_MINOR "(\d+)"\)/i) {
 		$minor = $1;
-	} elsif(/SET\(CPACK_PACKAGE_VERSION_PATCH "(\d+)"\)/) {
+	} elsif(/SET\(CPACK_PACKAGE_VERSION_PATCH "(\d+)"\)/i) {
 		$patch = $1;
-	} elsif(/SET\(RELEASE_NAME "(.+)"\)/) {
+	} elsif(/SET\(RELEASE_NAME "(.+)"\)/i) {
 		$releasename = $1 unless defined $releasename;
 	}
 }
diff --git a/rpm/buildrpms.sh b/rpm/buildrpms.sh
index 1cbbee201e7..6bf4d2f324b 100755
--- a/rpm/buildrpms.sh
+++ b/rpm/buildrpms.sh
@@ -115,11 +115,11 @@ else
 fi
 
 # Get the version string
-major=$(grep -e 'SET(CPACK_PACKAGE_VERSION_MAJOR' ../CMakeLists.txt |
+major=$(grep -ie 'SET(CPACK_PACKAGE_VERSION_MAJOR' ../CMakeLists.txt |
         sed -r 's/.*\"([0-9]+)\".*/\1/g')
-minor=$(grep -e 'SET(CPACK_PACKAGE_VERSION_MINOR' ../CMakeLists.txt |
+minor=$(grep -ie 'SET(CPACK_PACKAGE_VERSION_MINOR' ../CMakeLists.txt |
         sed -r 's/.*\"([0-9]+)\".*/\1/g')
-patch=$(grep -e 'SET(CPACK_PACKAGE_VERSION_PATCH' ../CMakeLists.txt |
+patch=$(grep -ie 'SET(CPACK_PACKAGE_VERSION_PATCH' ../CMakeLists.txt |
         sed -r 's/.*\"([0-9]+)\".*/\1/g')
 
 version=$major.$minor.$patch
diff --git a/scripts/release.pl b/scripts/release.pl
index 0c931b147e4..daa64e570a4 100755
--- a/scripts/release.pl
+++ b/scripts/release.pl
@@ -28,10 +28,10 @@ sub updateCMakeLists($$$$) {
 	open I, "CMakeLists.txt.orig";
 	open O, ">CMakeLists.txt" or die "cannot create CMakeLists.txt: $!";
 	while(<I>) {
-		s/SET\(CPACK_PACKAGE_VERSION_MAJOR "(\d+)"\)/SET(CPACK_PACKAGE_VERSION_MAJOR "$major")/;
-		s/SET\(CPACK_PACKAGE_VERSION_MINOR "(\d+)"\)/SET(CPACK_PACKAGE_VERSION_MINOR "$minor")/;
-		s/SET\(CPACK_PACKAGE_VERSION_PATCH "(\d+)"\)/SET(CPACK_PACKAGE_VERSION_PATCH "$patch")/;
-		s/SET\(RELEASE_NAME "(.+)"\)/SET(RELEASE_NAME "$release")/;
+		s/SET\(CPACK_PACKAGE_VERSION_MAJOR "(\d+)"\)/set(CPACK_PACKAGE_VERSION_MAJOR "$major")/i;
+		s/SET\(CPACK_PACKAGE_VERSION_MINOR "(\d+)"\)/set(CPACK_PACKAGE_VERSION_MINOR "$minor")/i;
+		s/SET\(CPACK_PACKAGE_VERSION_PATCH "(\d+)"\)/set(CPACK_PACKAGE_VERSION_PATCH "$patch")/i;
+		s/SET\(RELEASE_NAME "(.+)"\)/set(RELEASE_NAME "$release")/i;
 		print O;
 	}
 	close O;
@@ -86,13 +86,13 @@ my $patch;
 my $releasename;
 open F, "CMakeLists.txt";
 while(<F>) {
-        if(/SET\(CPACK_PACKAGE_VERSION_MAJOR "(\d+)"\)/) {
+        if(/SET\(CPACK_PACKAGE_VERSION_MAJOR "(\d+)"\)/i) {
                 $major = $1;
-        } elsif(/SET\(CPACK_PACKAGE_VERSION_MINOR "(\d+)"\)/) {
+        } elsif(/SET\(CPACK_PACKAGE_VERSION_MINOR "(\d+)"\)/i) {
                 $minor = $1;
-        } elsif(/SET\(CPACK_PACKAGE_VERSION_PATCH "(\d+)"\)/) {
+        } elsif(/SET\(CPACK_PACKAGE_VERSION_PATCH "(\d+)"\)/i) {
                 $patch = $1;
-	} elsif(/SET\(RELEASE_NAME \"(.*)\"\)/) {
+	} elsif(/SET\(RELEASE_NAME \"(.*)\"\)/i) {
 		$releasename = $1;
         }
 }
diff --git a/scripts/tsstat.pl b/scripts/tsstat.pl
index b06bb938c9d..f0fd6c89bf9 100755
--- a/scripts/tsstat.pl
+++ b/scripts/tsstat.pl
@@ -210,8 +210,8 @@ rename "i18n/CMakeLists.txt", "i18n/CMakeLists.txt.temp" || die "cannot rename i
 open I, "i18n/CMakeLists.txt.temp";
 open O, ">i18n/CMakeLists.txt";
 while(<I>) {
-	if( /^SET\(TS_FILES / || /^FILE \(GLOB TS_FILES \*\.ts\)/ ) {
-		print O "SET(TS_FILES " . join( " ", map { "qgis_$_\.ts"; } @ts ) . ")\n";
+	if( /^SET\(TS_FILES /i ) {
+		print O "set(TS_FILES " . join( " ", map { "qgis_$_\.ts"; } @ts ) . ")\n";
 	} else {
 		print O;
 	}