diff --git a/mac_build/buildWxMac.sh b/mac_build/buildWxMac.sh
index 7dea25b8c3..ec0cfba46f 100644
--- a/mac_build/buildWxMac.sh
+++ b/mac_build/buildWxMac.sh
@@ -336,7 +336,8 @@ else
     ## "-include unistd.h" is a workaround for a problem under Xcode 12 Beta
     ## $(ARCHS_STANDARD) builds Universal Binary (x86_64 & arm64) library under
     ## Xcode versions that can, otherwise it builds only the X86_64 library.
-    xcodebuild -project build/osx/wxcocoa.xcodeproj -target static -configuration Release $doclean build ARCHS="\$(ARCHS_STANDARD)" ONLY_ACTIVE_ARCH="NO" MACOSX_DEPLOYMENT_TARGET="10.7" CLANG_CXX_LIBRARY="libc++" OTHER_CFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DwxDEBUG_LEVEL=0 -DPNG_ARM_NEON_OPT=0 -DNDEBUG -fvisibility=hidden -include unistd.h" OTHER_CPLUSPLUSFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DwxDEBUG_LEVEL=0 -DPNG_ARM_NEON_OPT=0 -DNDEBUG -fvisibility=hidden -fvisibility-inlines-hidden" GCC_PREPROCESSOR_DEFINITIONS="WXBUILDING __WXOSX_COCOA__ __WX__ wxUSE_BASE=1 _FILE_OFFSET_BITS=64 _LARGE_FILES MACOS_CLASSIC __WXMAC_XCODE__=1 SCI_LEXER WX_PRECOMP=1 wxUSE_UNICODE_UTF8=1 wxUSE_UNICODE_WCHAR=0 __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=1" | $beautifier; retval=${PIPESTATUS[0]}
+    set -o pipefail
+    xcodebuild -project build/osx/wxcocoa.xcodeproj -target static -configuration Release $doclean build ARCHS="\$(ARCHS_STANDARD)" ONLY_ACTIVE_ARCH="NO" MACOSX_DEPLOYMENT_TARGET="10.7" CLANG_CXX_LIBRARY="libc++" OTHER_CFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DwxDEBUG_LEVEL=0 -DPNG_ARM_NEON_OPT=0 -DNDEBUG -fvisibility=hidden -include unistd.h" OTHER_CPLUSPLUSFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DwxDEBUG_LEVEL=0 -DPNG_ARM_NEON_OPT=0 -DNDEBUG -fvisibility=hidden -fvisibility-inlines-hidden" GCC_PREPROCESSOR_DEFINITIONS="WXBUILDING __WXOSX_COCOA__ __WX__ wxUSE_BASE=1 _FILE_OFFSET_BITS=64 _LARGE_FILES MACOS_CLASSIC __WXMAC_XCODE__=1 SCI_LEXER WX_PRECOMP=1 wxUSE_UNICODE_UTF8=1 wxUSE_UNICODE_WCHAR=0 __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=1" | $beautifier; retval=$?
     if [ ${retval} -ne 0 ]; then return 1; fi
     if [ "x${lprefix}" != "x" ]; then
         # copy library and headers to $lprefix
@@ -391,7 +392,8 @@ else
     ## "-include unistd.h" is a workaround for a problem under Xcode 12 Beta
     ## $(ARCHS_STANDARD) builds Universal Binary (x86_64 & arm64) library under
     ## Xcode versions that can, otherwise it builds only the X86_64 library.
-    xcodebuild -project build/osx/wxcocoa.xcodeproj -target static -configuration Debug build ARCHS="\$(ARCHS_STANDARD)" ONLY_ACTIVE_ARCH="NO" MACOSX_DEPLOYMENT_TARGET="10.7" CLANG_CXX_LIBRARY="libc++" OTHER_CFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DPNG_ARM_NEON_OPT=0 -DDEBUG -fvisibility=hidden -include unistd.h" OTHER_CPLUSPLUSFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DPNG_ARM_NEON_OPT=0 -DDEBUG -fvisibility=hidden -fvisibility-inlines-hidden" GCC_PREPROCESSOR_DEFINITIONS="WXBUILDING __WXOSX_COCOA__ __WX__ wxUSE_BASE=1 _FILE_OFFSET_BITS=64 _LARGE_FILES MACOS_CLASSIC __WXMAC_XCODE__=1 SCI_LEXER WX_PRECOMP=1 wxUSE_UNICODE_UTF8=1 wxUSE_UNICODE_WCHAR=0 __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=1" | $beautifier; retval=${PIPESTATUS[0]}
+    set -o pipefail
+    xcodebuild -project build/osx/wxcocoa.xcodeproj -target static -configuration Debug build ARCHS="\$(ARCHS_STANDARD)" ONLY_ACTIVE_ARCH="NO" MACOSX_DEPLOYMENT_TARGET="10.7" CLANG_CXX_LIBRARY="libc++" OTHER_CFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DPNG_ARM_NEON_OPT=0 -DDEBUG -fvisibility=hidden -include unistd.h" OTHER_CPLUSPLUSFLAGS="-Wall -Wundef -fno-strict-aliasing -fno-common -DWK_API_ENABLED=0 -DHAVE_LOCALTIME_R=1 -DHAVE_GMTIME_R=1 -DwxUSE_UNICODE=1 -DPNG_ARM_NEON_OPT=0 -DDEBUG -fvisibility=hidden -fvisibility-inlines-hidden" GCC_PREPROCESSOR_DEFINITIONS="WXBUILDING __WXOSX_COCOA__ __WX__ wxUSE_BASE=1 _FILE_OFFSET_BITS=64 _LARGE_FILES MACOS_CLASSIC __WXMAC_XCODE__=1 SCI_LEXER WX_PRECOMP=1 wxUSE_UNICODE_UTF8=1 wxUSE_UNICODE_WCHAR=0 __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=1" | $beautifier; retval=$?
     if [ ${retval} -ne 0 ]; then return 1; fi
     if [ "x${lprefix}" != "x" ]; then
         # copy debug library to $PREFIX