Hi, httpd-2.4.28 build process failed with this error: mod_proxy_balancer.c mod_proxy_balancer.c(25) : fatal error C1083: Cannot open include file: 'mod_watchdog.h': No such file or directory NMAKE : fatal error U1077: '"<C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\BIN\cl.exe>"' : return code '0x2' Stop. To fix this issue, mod_proxy_balancer.mak was modified and required path was added: CPP_PROJ=/nologo /MD /W3 /Zi /O2 /Oy- /I "../../include" /I "../../srclib/apr/include" /I "../../srclib/apr-util/include" /I "../core" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /Fo"$(INTDIR)\\" /Fd"$(INTDIR)\mod_proxy_balancer_src" /FD /c Please change mod_proxy_balancer.mak and add /I "../core" to it. Thanks.
Corrected in 2.4.x branch for 2.4.29 tag, by copying the file during the libhttpd build to the include/ dir (rather than adding modules/core to a number of makefiles.)