kumquat-buildroot/package/librtlsdr/0002-cmake-Modules-Version.cmake-don-t-use-Git-version-if.patch

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From feb5d9c6b7bcec788f9b01781c205e31fff260e7 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Date: Tue, 11 Aug 2020 23:07:08 +0200
Subject: [PATCH] cmake/Modules/Version.cmake: don't use Git version if not in
a Git repo
If the librtlsdr code comes from a tarball, it doesn't have any .git/
metadata, and therefore even if Git (as a tool) is found, the logic in
cmake/Modules/Version.cmake fails finding a version through Git:
-- Extracting version information from git describe...
fatal: Not a git repository (or any of the parent directories): .git
As a consequence, the VERSION variable is empty, which later causes
cmake to bail out with:
CMake Error at /home/test/autobuild/run/instance-1/output-1/host/share/cmake-3.15/Modules/WriteBasicConfigVersionFile.cmake:43 (message):
No VERSION specified for WRITE_BASIC_CONFIG_VERSION_FILE()
Call Stack (most recent call first):
/home/test/autobuild/run/instance-1/output-1/host/share/cmake-3.15/Modules/CMakePackageConfigHelpers.cmake:225 (write_basic_config_version_file)
CMakeLists.txt:173 (write_basic_package_version_file)
To avoid this, we only use Git to determine the version if the cmake
project top-level source directory has a .git/ folder.
Upstream: https://github.com/librtlsdr/librtlsdr/pull/75
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
cmake/Modules/Version.cmake | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/cmake/Modules/Version.cmake b/cmake/Modules/Version.cmake
index 2d4e76d..6f67fa4 100644
--- a/cmake/Modules/Version.cmake
+++ b/cmake/Modules/Version.cmake
@@ -32,7 +32,7 @@ set(PATCH_VERSION ${VERSION_INFO_PATCH_VERSION})
########################################################################
find_package(Git QUIET)
-if(GIT_FOUND)
+if(GIT_FOUND AND EXISTS ${CMAKE_SOURCE_DIR}/.git)
message(STATUS "Extracting version information from git describe...")
execute_process(
COMMAND ${GIT_EXECUTABLE} describe --always --abbrev=4 --long
--
2.26.2