Build the installer in src/out.

The previous layout is obsolete now that Visual Studio outputs build
artefacts in out/ instead of CMakeBuilds.

Author: dechamps

src/installer.cmake

@@ -12,7 +12,7 @@ string(REGEX REPLACE "^flexasio-" "" FLEXASIO_VERSION "${DECHAMPS_CMAKEUTILS_GIT
 string(TIMESTAMP FLEXASIO_BUILD_TIMESTAMP "%Y-%m-%dT%H%M%SZ" UTC)
 string(RANDOM FLEXASIO_BUILD_ID)
 if (NOT DEFINED FLEXASIO_BUILD_ROOT_DIR)
-    set(FLEXASIO_BUILD_ROOT_DIR "$ENV{USERPROFILE}/CMakeBuilds/FlexASIO-${FLEXASIO_BUILD_TIMESTAMP}-${FLEXASIO_BUILD_ID}")
+    set(FLEXASIO_BUILD_ROOT_DIR "${CMAKE_CURRENT_LIST_DIR}/out/installer/${FLEXASIO_BUILD_TIMESTAMP}-${FLEXASIO_BUILD_ID}")
 endif()
 message(STATUS "FlexASIO build root directory: ${FLEXASIO_BUILD_ROOT_DIR}")