From 2a9cfb3fa41702925a30e2640cbcffbd6bb0de39 Mon Sep 17 00:00:00 2001
From: q-posev <posenitskiy@irsamc.ups-tlse.fr>
Date: Thu, 20 Jan 2022 17:32:01 +0100
Subject: [PATCH] [CMake] add minor support for pthreads and stdint

---
 CMakeLists.txt     |  3 ++-
 src/CMakeLists.txt | 35 ++++++++++++++++++++++++-----------
 2 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7c2747f..866b0b7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,7 +49,8 @@ if(EXISTS "${CMAKE_SOURCE_DIR}/.git/config")
   # replace placeholders in the templace config.h.in file to produce config.h
   # config.h is needed to insert TREXIO_PACKAGE_VERSION and TREXIO_GIT_HASH into trexio.h
   configure_file(${CMAKE_SOURCE_DIR}/include/cmake_config.h.in
-                 ${CMAKE_SOURCE_DIR}/include/config.h)
+                 ${CMAKE_SOURCE_DIR}/include/config.h
+		 @ONLY)
 endif()
 
 # Set directories to be included at build time.
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1e46d5f..0dc8bd4 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,13 +1,26 @@
 
-# ========= DEFINE TREXIO C LIBRARY ========= 
+# ============= THREADS SUPPORT ==============
+
+# the two options below add preference for the pthread library over other system-wide threads implementations
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+# find thread library
+find_package(Threads REQUIRED)
+
+# ============= STDINT SUPPORT ===============
+
+include(CheckIncludeFile)
+check_include_file(stdint.h HAVE_STDINT_H)
+
+# ========= DEFINE TREXIO C LIBRARY =========
 
 # Set a list of TREXIO source and header files that are always compiled.
-set(TREXIO_SOURCES 
+set(TREXIO_SOURCES
 	${CMAKE_CURRENT_SOURCE_DIR}/trexio.c
 	${CMAKE_CURRENT_SOURCE_DIR}/trexio_text.c
 	)
 set(TREXIO_PUBLIC_HEADERS ${CMAKE_SOURCE_DIR}/include/trexio.h)
-set(TREXIO_PRIVATE_HEADERS 
+set(TREXIO_PRIVATE_HEADERS
 	${CMAKE_CURRENT_SOURCE_DIR}/trexio_s.h
 	${CMAKE_CURRENT_SOURCE_DIR}/trexio_private.h
 	${CMAKE_CURRENT_SOURCE_DIR}/trexio_text.h
@@ -29,7 +42,7 @@ if(BUILD_SHARED_LIBS AND NOT BUILD_STATIC_LIBS)
   add_library(trexio SHARED)
 
 elseif(NOT BUILD_SHARED_LIBS AND BUILD_STATIC_LIBS)
-  
+
   message(STATUS "TREXIO :: static C library will be built")
   add_library(trexio STATIC)
   # Static TREXIO has to be compiled with -fPIC flag. For Shared it is done by default.
@@ -40,12 +53,12 @@ else()
 endif()
 
 # Set TREXIO version and include files.
-set_target_properties(trexio PROPERTIES 
+set_target_properties(trexio PROPERTIES
 	VERSION ${PROJECT_VERSION}
 	PUBLIC_HEADER ${TREXIO_PUBLIC_HEADERS}
 	)
 
-# ============= CONFIGURE HDF5 ============== 
+# ============= CONFIGURE HDF5 ==============
 
 # By defaulti, TREXIO is configured with the HDF5 support.
 # To change this, append -DENABLE_HDF5=OFF to the cmake call.
@@ -74,8 +87,8 @@ if(ENABLE_HDF5)
   # - include directories with HDF5 header files
   target_include_directories(trexio PRIVATE ${HDF5_C_INCLUDE_DIRS})
   # - link to HDF5 C libraries
-  target_link_libraries(trexio PRIVATE 
-         ${HDF5_C_HL_LIBRARIES} 
+  target_link_libraries(trexio PRIVATE
+         ${HDF5_C_HL_LIBRARIES}
          ${HDF5_C_LIBRARIES})
 endif()
 
@@ -110,7 +123,7 @@ if(TREXIO_DEVEL)
     list(APPEND ORG_FILES templates_hdf5/templator_hdf5.org)
   endif()
 
-  add_custom_command(OUTPUT 
+  add_custom_command(OUTPUT
 	  ${TREXIO_SOURCES}
 	  ${TREXIO_PUBLIC_HEADERS}
 	  ${TREXIO_PRIVATE_HEADERS}
@@ -129,7 +142,7 @@ if(TREXIO_DEVEL)
 
 endif()
 
-# ============= INSTALL TREXIO ============== 
+# ============= INSTALL TREXIO ==============
 
 include(GNUInstallDirs)
 # Use standard GNU directories for installation of TREXIO (e.g. /usr/local/lib|include).
@@ -153,4 +166,4 @@ if(NOT TARGET uninstall)
     COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
 endif()
 
-# =========================================== 
+# ===========================================