Hi all, I guess path to apr-util is missing in the cmake build script for windows.
Steps to reproduce: <From source file directory > >cmake -B tmp32 -G "Visual Studio 15 2017"^ -DOPENSSL_ROOT_DIR=D:/dev/openssl-1.1.1.x/out32dll.dbg^ -DAPR_INCLUDE_DIR=D:/dev/apr/apr/out32.dbg/include^ -DAPR_LIBRARIES=D:/dev/apr/apr/out32.dbg/lib/libapr-1.lib^ -DLIBXML2_LIBRARY=D:/dev/libxml2/out32/lib/libxml2_a.lib^ -DLIBXML2_INCLUDE_DIR=D:/dev/libxml2/out32/include/libxml2 >cmake --build tmp32 --config Debug build failed with errors about apr-utils headers eg: D:\dev\apache\2.4.x\support\ab.c(141): fatal error C1083: Cannot open include file: 'apr_base64.h': No such file or directory d:\dev\apache\2.4.x\support\passwd_common.h(28): fatal error C1083: Cannot open include file: 'apu_version.h': No such file or directory Would you accept a patch to add APU_INCLUDE_DIR and APU_LIBRARIES to the build script ? Regards, Arnaud