From 09d94529e5dbfa992cb6012cc0dc38d6f3e7d57d Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Thu, 2 Sep 2021 11:38:05 +0200
Subject: cmake: Replace CMAKE_{SOURCE,BINARY}_DIR with UHD_*_DIR

See the CMake 3.8 documentation on these two variables:
https://cmake.org/cmake/help/v3.8/variable/PROJECT-NAME_SOURCE_DIR.html
https://cmake.org/cmake/help/v3.8/variable/CMAKE_SOURCE_DIR.html

Under normal circumstances, these two are identical. For sub-projects
(i.e., when building UHD as part of something else that is also a CMake
project), only the former is useful. There is no discernible downside of
using UHD_SOURCE_DIR over CMAKE_SOURCE_DIR.

This was changed using sed:

$ sed -i "s/CMAKE_SOURCE_DIR/UHD_SOURCE_DIR/g" \
    `ag -l CMAKE_SOURCE_DIR **/{CMakeLists.txt,*.cmake}`
$ sed -i "s/CMAKE_BINARY_DIR/UHD_BINARY_DIR/g" \
    `ag -l CMAKE_BINARY_DIR **/{CMakeLists.txt,*.cmake}`

At the same time, we also replace the CMake variable UHD_HOST_ROOT (used
in MPM) with UHD_SOURCE_DIR. There's no reason to have two variables
with the same meaning and different names, but more importantly, this
means that UHD_SOURCE_DIR is defined even in those cases where MPM calls
into CMake files from UHD without any additional patches.

Shoutout to GitHub user marcobergamin for bringing this up.
---
 host/cmake/Modules/UHDVersion.cmake | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'host/cmake/Modules/UHDVersion.cmake')

diff --git a/host/cmake/Modules/UHDVersion.cmake b/host/cmake/Modules/UHDVersion.cmake
index 3a39a40cf..eff705571 100644
--- a/host/cmake/Modules/UHDVersion.cmake
+++ b/host/cmake/Modules/UHDVersion.cmake
@@ -38,7 +38,7 @@ endif(NOT DEFINED UHD_VERSION_DEVEL)
 set(UHD_GIT_BRANCH "")
 if(GIT_FOUND)
     execute_process(
-        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        WORKING_DIRECTORY ${UHD_SOURCE_DIR}
         COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD
         OUTPUT_VARIABLE _git_branch OUTPUT_STRIP_TRAILING_WHITESPACE
         RESULT_VARIABLE _git_branch_result
@@ -77,7 +77,7 @@ endif(DEFINED UHD_GIT_BRANCH_OVERRIDE)
 
 #grab the git ref id for the current head
 execute_process(
-    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+    WORKING_DIRECTORY ${UHD_SOURCE_DIR}
     COMMAND ${GIT_EXECUTABLE} describe --always --abbrev=8 --long
     OUTPUT_VARIABLE _git_describe OUTPUT_STRIP_TRAILING_WHITESPACE
     RESULT_VARIABLE _git_describe_result
@@ -87,7 +87,7 @@ execute_process(
 if(_git_describe_result EQUAL 0)
     if(NOT UHD_GIT_COUNT)
         execute_process(
-            WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+            WORKING_DIRECTORY ${UHD_SOURCE_DIR}
             COMMAND ${PYTHON_EXECUTABLE} -c "
 try:
     print('${_git_describe}'.split('-')[-2])
@@ -99,7 +99,7 @@ except IndexError:
     endif()
     if(NOT UHD_GIT_HASH)
         execute_process(
-            WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+            WORKING_DIRECTORY ${UHD_SOURCE_DIR}
             COMMAND ${PYTHON_EXECUTABLE} -c "
 try:
     print('${_git_describe}'.split('-')[-1])
@@ -125,7 +125,7 @@ if(UHD_RELEASE_MODE)
 
     #Ignore UHD_GIT_COUNT in UHD_VERSION if the string 'release' is in UHD_RELEASE_MODE
     execute_process(
-        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        WORKING_DIRECTORY ${UHD_SOURCE_DIR}
         COMMAND ${PYTHON_EXECUTABLE} -c "print ('release' in '${UHD_RELEASE_MODE}') or ('rc' in '${UHD_RELEASE_MODE}')"
         OUTPUT_VARIABLE TRIM_UHD_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE
     )
-- 
cgit v1.2.3