ci: add cmake export and pkg-config checks

.gitlab/check_link/CMakeLists.txt

+###
+#
+#  @copyright 2013-2024 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria,
+#                       Univ. Bordeaux. All rights reserved.
+#
+#  @version 1.3.0
+#  @author Mathieu Faverge
+#  @author Florent Pruvost
+#  @date 2024-06-13
+#
+###
+cmake_minimum_required(VERSION 3.5)
+
+project(LINK_CHAMELEON C CXX Fortran)
+
+# look for CHAMELEON on the system
+# Hint: use CMAKE_PREFIX_PATH (env. var. or cmake var.) to the installation
+# directory of CHAMELEON if not installed in a standard path
+find_package(CHAMELEON REQUIRED)
+
+if (TARGET CHAMELEON::chameleon)
+  message(STATUS "CHAMELEON_BIN_DIR ${CHAMELEON_BIN_DIR}")
+  message(STATUS "CHAMELEON_INC_DIR ${CHAMELEON_INC_DIR}")
+  message(STATUS "CHAMELEON_LIB_DIR ${CHAMELEON_LIB_DIR}")
+else()
+  message(FATAL_ERROR "Target CHAMELEON::chameleon is not found, check your CHAMELEONConfig.cmake.")
+endif()
+
+set(CMAKE_BUILD_RPATH ${CHAMELEON_LIB_DIR})
+
+add_executable(link_chameleon_c ${CMAKE_CURRENT_SOURCE_DIR}/../../example/link_chameleon/link_chameleon.c)
+target_link_libraries(link_chameleon_c PRIVATE CHAMELEON::chameleon)
+
+# Launch executables with ctest
+enable_testing()
+include(CTest)
+add_test(link_chameleon_c link_chameleon_c)