diff --git a/.gitignore b/.gitignore
index 030cd6515d..ffc2722a51 100644
--- a/.gitignore
+++ b/.gitignore
@@ -168,3 +168,6 @@ resources/environment.sh
 
 **/node_modules/
 
+# Temporary file for logging scripts in xcode runs, see build-utils.sh for
+# details
+/xcodebuild-scripts.log
diff --git a/ios/kmbuild.sh b/ios/kmbuild.sh
index f4eb1f822a..9d526e98ff 100755
--- a/ios/kmbuild.sh
+++ b/ios/kmbuild.sh
@@ -23,18 +23,6 @@ cd "$(dirname "$THIS_SCRIPT")"
 # Please note that this build script (understandably) assumes that it is running on Mac OS X.
 verify_on_mac
 
-function printScriptLogs() {
-  echo "printScriptLogs: reporting script results from previous xcode build"
-  if [ -f "$KEYMAN_ROOT/ios/scripts.log" ]; then
-    cat "$KEYMAN_ROOT/ios/scripts.log"
-    rm "$KEYMAN_ROOT/ios/scripts.log"
-  else
-    echo "printScriptLogs: $KEYMAN_ROOT/ios/scripts.log not found"
-  fi
-  echo "printScriptLogs: done"
-  echo
-}
-
 display_usage ( ) {
     echo "build.sh [-clean] [-no-kmw] [-only-framework] [-no-codesign] [-no-archive] [-add-sim-artifact] [-no-build] [-upload-sentry]"
     echo
@@ -258,21 +246,14 @@ if [ -d "$BUILD_PATH/$CONFIG-universal" ]; then
   rm -r $BUILD_PATH/$CONFIG-universal
 fi
 
-xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme KME-universal \
+run-xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme KME-universal \
            VERSION=$VERSION \
            VERSION_WITH_TAG=$VERSION_WITH_TAG \
            VERSION_ENVIRONMENT=$VERSION_ENVIRONMENT \
            UPLOAD_SENTRY=$UPLOAD_SENTRY
 
-if [ $? -ne 0 ]; then
-  printScriptLogs
-  fail "KMEI build failed."
-fi
-
 assertDirExists "$KEYMAN_XCFRAMEWORK"
 
-printScriptLogs
-
 echo "KMEI build complete."
 
 if [ $DO_KEYMANAPP = true ]; then
@@ -291,23 +272,16 @@ if [ $DO_KEYMANAPP = true ]; then
   fi
 
   if [ $DO_ARCHIVE = false ]; then
-    xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
+    run-xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
                 VERSION=$VERSION \
                 VERSION_WITH_TAG=$VERSION_WITH_TAG \
                 VERSION_ENVIRONMENT=$VERSION_ENVIRONMENT \
                 UPLOAD_SENTRY=$UPLOAD_SENTRY
-
-    if [ $? -ne 0 ]; then
-      printScriptLogs
-      fail "Keyman app build failed."
-    fi
-
-    printScriptLogs
   else
     # Time to prepare the deployment archive data.
     echo ""
     echo "Preparing .xcarchive for real devices."
-    xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
+    run-xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
                 -archivePath $ARCHIVE_PATH \
                 archive -allowProvisioningUpdates \
                 VERSION=$VERSION \
@@ -315,23 +289,21 @@ if [ $DO_KEYMANAPP = true ]; then
                 VERSION_ENVIRONMENT=$VERSION_ENVIRONMENT \
                 UPLOAD_SENTRY=$UPLOAD_SENTRY
 
-    printScriptLogs
     assertDirExists "$ARCHIVE_PATH"
 
     if [ $DO_CODE_SIGN == true ]; then
       echo "Preparing .ipa file for deployment to real devices"
       # Do NOT use the _EXT variant here; there's no scheme to ref, which will lead
       # Xcode to generate a build error.
-      xcodebuild $XCODEFLAGS -exportArchive -archivePath $ARCHIVE_PATH \
+      run-xcodebuild $XCODEFLAGS -exportArchive -archivePath $ARCHIVE_PATH \
                   -exportOptionsPlist exportAppStore.plist \
                   -exportPath $BUILD_PATH/${CONFIG}-iphoneos -allowProvisioningUpdates
-      printScriptLogs
     fi
   fi
 
   if [ $DO_SIMULATOR_TARGET == true ]; then
     echo "Preparing .app file for simulator-targeted artifact for testing"
-    xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
+    run-xcodebuild $XCODEFLAGS_EXT $CODE_SIGN -scheme Keyman \
                 -sdk iphonesimulator \
                 VERSION=$VERSION \
                 VERSION_WITH_TAG=$VERSION_WITH_TAG \
@@ -339,12 +311,6 @@ if [ $DO_KEYMANAPP = true ]; then
                 UPLOAD_SENTRY=$UPLOAD_SENTRY
   fi
 
-  echo ""
-  if [ $? = 0 ]; then
-      printScriptLogs
-      echo "Build succeeded."
-  else
-      printScriptLogs
-      fail "Build failed - please see the log above for details."
-  fi
+  echo
+  echo "Build succeeded."
 fi
diff --git a/ios/samples/build_common.sh b/ios/samples/build_common.sh
index 037b77976f..7a959a2483 100755
--- a/ios/samples/build_common.sh
+++ b/ios/samples/build_common.sh
@@ -127,9 +127,9 @@ if [ $DO_UPDATE = true ]; then
 fi
 
 if [ $CODE_SIGN = true ]; then
-  xcodebuild -quiet -target "$TARGET" -config "$CONFIG"
+  run-xcodebuild -quiet -target "$TARGET" -config "$CONFIG"
 else
-  xcodebuild -quiet CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED="NO" CODE_SIGNING_ENTITLEMENTS="" -target "$TARGET" -config "$CONFIG"
+  run-xcodebuild -quiet CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED="NO" CODE_SIGNING_ENTITLEMENTS="" -target "$TARGET" -config "$CONFIG"
 fi
 
 if [ $? = 0 ]; then
diff --git a/ios/scripts/kme-universal.sh b/ios/scripts/kme-universal.sh
index 43106a9576..3cd8db3c24 100755
--- a/ios/scripts/kme-universal.sh
+++ b/ios/scripts/kme-universal.sh
@@ -28,10 +28,10 @@ echo ""
 build_archive ( ) {
   # Note:  while official docs say we should use `xcodebuild archive ...`, that
   #        is not only markedly slower, it also adds undesired side-effects to
-  #        our build processes.  
+  #        our build processes.
   #        (It nukes the base .framework file used to build the archive with a
   #        broken alias that subsequent builds [like the main app's!] can't process.)
-  xcodebuild build \
+  run-xcodebuild build \
              -scheme "${SCHEME_NAME}" \
              -configuration ${CONFIGURATION} \
              -sdk "$1" \
@@ -68,7 +68,7 @@ echo ""
 # -allow-internal-distribution:  preserves the .swiftmodule files, greatly
 #                                simplifying integration in consuming apps.
 #                                - Carthage uses this for its XCFramework support.
-xcodebuild -create-xcframework \
+run-xcodebuild -create-xcframework \
   -allow-internal-distribution \
   -framework ${IPHONE_FRAMEWORK} \
   -framework ${SIMULATOR_FRAMEWORK} \
diff --git a/mac/build.sh b/mac/build.sh
index 438edb57d1..0d05c7351c 100755
--- a/mac/build.sh
+++ b/mac/build.sh
@@ -306,6 +306,8 @@ execBuildCommand() {
     ret_code=$?
     set -e
 
+    printXCodeBuildScriptLogs
+
     if [ $ret_code != 0 ]; then
         fail "Build of $component failed! Error: [$ret_code] when executing command: '$cmnd'"
     fi
diff --git a/oem/firstvoices/ios/build_common.sh b/oem/firstvoices/ios/build_common.sh
index 47ff14ee48..9797b2693f 100755
--- a/oem/firstvoices/ios/build_common.sh
+++ b/oem/firstvoices/ios/build_common.sh
@@ -170,7 +170,7 @@ if [ $DO_CARTHAGE = true ]; then
 
   # Deleted workspace - a test for proper deployment to CocoaPods.  Doesn't matter here.
   rm -r ./Carthage/Checkouts/DeviceKit/CocoaPodsVerification/ || fail "Carthage dependency loading failed"
-  
+
   # --no-use-binaries: due to https://github.com/Carthage/Carthage/issues/3134,
   # which affects the sentry-cocoa dependency.
   carthage build --use-xcframeworks --no-use-binaries --platform iOS || fail "Carthage dependency loading failed"
@@ -192,7 +192,7 @@ if [ $CODE_SIGN = true ]; then
     # Time to prepare the deployment archive data.
     echo ""
     echo "Preparing .ipa file for deployment to real devices."
-    xcodebuild $XCODEFLAGS_EXT -scheme $TARGET -archivePath $ARCHIVE_PATH archive -allowProvisioningUpdates \
+    run-xcodebuild $XCODEFLAGS_EXT -scheme $TARGET -archivePath $ARCHIVE_PATH archive -allowProvisioningUpdates \
                VERSION=$VERSION \
                VERSION_WITH_TAG=$VERSION_WITH_TAG
 
@@ -201,17 +201,17 @@ if [ $CODE_SIGN = true ]; then
 
     # Do NOT use the _EXT variant here; there's no scheme to ref, which will lead
     # Xcode to generate a build error.
-    xcodebuild $XCODEFLAGS -exportArchive -archivePath $ARCHIVE_PATH -exportOptionsPlist exportAppStore.plist \
+    run-xcodebuild $XCODEFLAGS -exportArchive -archivePath $ARCHIVE_PATH -exportOptionsPlist exportAppStore.plist \
                -exportPath $BUILD_PATH/${CONFIG}-iphoneos -allowProvisioningUpdates \
                VERSION=$VERSION \
                VERSION_WITH_TAG=$VERSION_WITH_TAG
   else
-    xcodebuild $XCODEFLAGS_EXT -scheme "$TARGET" \
+    run-xcodebuild $XCODEFLAGS_EXT -scheme "$TARGET" \
                VERSION=$VERSION \
                VERSION_WITH_TAG=$VERSION_WITH_TAG
   fi
 else
-  xcodebuild CODE_SIGN_ENTITLEMENTS="" CODE_SIGNING_ALLOWED="NO" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO \
+  run-xcodebuild CODE_SIGN_ENTITLEMENTS="" CODE_SIGNING_ALLOWED="NO" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO \
              $XCODEFLAGS_EXT -scheme "$TARGET" \
              VERSION=$VERSION \
              VERSION_WITH_TAG=$VERSION_WITH_TAG
@@ -219,7 +219,7 @@ fi
 
 if [ $DO_SIMULATOR_TARGET == true ]; then
   echo "Preparing .app file as Simulator-targeted build artifact."
-  xcodebuild CODE_SIGN_ENTITLEMENTS="" CODE_SIGNING_ALLOWED="NO" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO \
+  run-xcodebuild CODE_SIGN_ENTITLEMENTS="" CODE_SIGNING_ALLOWED="NO" CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO \
              $XCODEFLAGS_EXT -scheme "$TARGET" \
              -sdk iphonesimulator \
              VERSION=$VERSION \
diff --git a/resources/build/build-utils.sh b/resources/build/build-utils.sh
index 8b02c15d74..9663d2a75f 100755
--- a/resources/build/build-utils.sh
+++ b/resources/build/build-utils.sh
@@ -374,4 +374,54 @@ builder_report() {
 
 set_keyman_standard_build_path() {
   PATH="$KEYMAN_ROOT/node_modules/.bin:$PATH"
+}
+
+#
+# printXCodeBuildScriptLogs: xcodebuild does not emit stdout from scripts in
+# PBXShellScriptBuildPhase phases. This is a real problem for us because if
+# there is an issue, we just can't see it. So we capture the output in a
+# separate logfile, and then call printXCodeBuildScriptLogs after any xcodebuild
+# call to get the output.
+#
+# This file is captured in xcode-utils.sh, logScriptsToFile function, and each
+# script phase will append to the log file, until funprintXCodeBuildScriptLogs
+# is called, at which point the logfile will be deleted.
+#
+# The logfile is placed in $KEYMAN_ROOT/xcodebuild-scripts.log. It is used for
+# both iOS and macOS builds.
+#
+# If there is no logfile, then this function will not emit anything.
+#
+printXCodeBuildScriptLogs() {
+  local SCRIPT_LOG="$KEYMAN_ROOT/xcodebuild-scripts.log"
+  if [ -f "$SCRIPT_LOG" ]; then
+    echo "printXCodeBuildScriptLogs: reporting script results from previous xcode build"
+    cat "$SCRIPT_LOG"
+    rm "$SCRIPT_LOG"
+    echo "printXCodeBuildScriptLogs: done"
+    echo
+  fi
+}
+
+#
+# Wraps xcodebuild with error handling and log printing
+#
+run-xcodebuild() {
+  typeset cmnd="$*"
+  typeset ret_code
+  local hasSetErrExit=false
+  if [ -o errexit ]; then
+    hasSetErrExit=true
+    set +e
+  fi
+  eval xcodebuild $cmnd
+  ret_code=$?
+  if $hasSetErrExit; then
+    set -e
+  fi
+
+  printXCodeBuildScriptLogs
+  if [ $ret_code != 0 ]; then
+    fail "Build failed! Error: [$ret_code] when executing command: 'xcodebuild $cmnd'"
+  fi
 }
\ No newline at end of file
diff --git a/resources/build/xcode-utils.sh b/resources/build/xcode-utils.sh
index b016fbf989..1abd784717 100755
--- a/resources/build/xcode-utils.sh
+++ b/resources/build/xcode-utils.sh
@@ -156,8 +156,17 @@ function phaseSentryDsymUpload() {
   fi
 }
 
+#
+# All calls to xcode-utils.sh scripts will have their output redirected to
+# $KEYMAN_ROOT/xcodebuild-scripts.log. This will redirect both stdout and stderr
+# to this log file. See the corresponding printXCodeBuildScriptLogs function in
+# build-utils.sh to print the log after xcodebuild returns.
+#
+# More information in the build-utils.sh.
+#
 function logScriptsToFile() {
-  exec >> $KEYMAN_ROOT/ios/scripts.log 2>&1
+  local SCRIPT_LOG="$KEYMAN_ROOT/xcodebuild-scripts.log"
+  exec >> "$SCRIPT_LOG" 2>&1
 }
 
 logScriptsToFile