cmake_minimum_required (VERSION 2.8)
project (cmake-ninja-link)

file (WRITE "main.cpp" "int main(int argc, char **argv) { return 0; }\n")

set (FileCount 0)

set (Src)

while (${FileCount} LESS 1000)
# LongFileName__012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 105 chars
  set (Fname LongFileName__012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789)
  set (Filename "${CMAKE_BINARY_DIR}/${Fname}_${FileCount}.cpp")
  file (WRITE "${Filename}" "namespace file${FileCount} { void foo() {} }\n")
  list (APPEND Src "${Filename}")

  message( "Created file ${Filename}")

  list (LENGTH Src FileCount)

endwhile()

add_executable (cmake-ninja-link main.cpp ${Src})

install (TARGETS cmake-ninja-link RUNTIME DESTINATION bin)

# cmake -GNinja ..
# ninja-build

# Argument list too long
# ninja: build stopped: subcommand failed.