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clean up CMake code (#5182)

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* CMake: simplify FindGMP.cmake

Remove printing of all the different variables, and let FPHSA output the library
name. Add an imported target, which bundles the library and the include
directories for easier usage.

* fix build: vector::c_ptr() now is vector::data()

* CMake: use Threads::Threads imported module

Otherwise the setting of THREADS_PREFER_PTHREAD_FLAG has no effect.

* CMake: remove needless policy setting

The minimum required version is CMake 3.4, where these policies are already set
to new because they were introduced earlier.

* CMake: remove needless variable expansion
This commit is contained in:
Rolf Eike Beer 2021-04-14 19:29:15 +02:00 • committed by GitHub
parent ce96182746
commit 7f8e2a9f75
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13 changed files with 69 additions and 94 deletions
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4
cmake/git_utils.cmake
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@ -26,7 +26,7 @@ function(add_git_dir_dependency GIT_DOT_FILE SUCCESS_VAR)
# git directory
file(READ "${GIT_DOT_FILE}" GIT_DOT_FILE_DATA LIMIT 512)
string(STRIP "${GIT_DOT_FILE_DATA}" GIT_DOT_FILE_DATA_STRIPPED)
if ("${GIT_DOT_FILE_DATA_STRIPPED}" MATCHES "^gitdir:[ ]*(.+)$")
if (GIT_DOT_FILE_DATA_STRIPPED MATCHES "^gitdir:[ ]*(.+)$")
# Git worktree
message(STATUS "Found git worktree")
set(GIT_WORKTREE_DIR "${CMAKE_MATCH_1}")
@ -75,7 +75,7 @@ function(add_git_dir_dependency GIT_DOT_FILE SUCCESS_VAR)
file(READ "${GIT_HEAD_FILE}" GIT_HEAD_DATA LIMIT 128)
string(STRIP "${GIT_HEAD_DATA}" GIT_HEAD_DATA_STRIPPED)
if ("${GIT_HEAD_DATA_STRIPPED}" MATCHES "^ref:[ ]*(.+)$")
if (GIT_HEAD_DATA_STRIPPED MATCHES "^ref:[ ]*(.+)$")
# HEAD points at a reference.
set(GIT_REF "${CMAKE_MATCH_1}")
if (EXISTS "${GIT_DIR}/${GIT_REF}")