don't repeat abi check

Author: scivision

CMakeLists.txt

@@ -12,7 +12,7 @@ cmake_minimum_required(VERSION 3.14)
 
 project(Fortran_C_CXX_interface
 LANGUAGES C Fortran CXX
-VERSION 1.1.0)
+VERSION 1.1.1)
 
 include(CTest)
 

cmake/abi_check/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.14)
+cmake_minimum_required(VERSION 3.13)
 project(abi_check LANGUAGES C Fortran)
 
 add_library(addone OBJECT addone.c)

cmake/compilers.cmake

@@ -1,12 +1,16 @@
 # check C and Fortran compiler ABI compatibility
 
-try_compile(abi_ok ${CMAKE_CURRENT_BINARY_DIR}/abi_check ${CMAKE_CURRENT_LIST_DIR}/abi_check abi_check)
-if(abi_ok)
-  message(STATUS "C and Fortran compiler detected to be ABI-compatible.")
-else()
-  message(FATAL ERROR "C compiler {CMAKE_C_COMPILER_ID} {CMAKE_C_COMPILER_VERSION} and Fortran compiler ${CMAKE_Fortran_COMPILER_ID} ${CMAKE_Fortran_COMPILER_VERSION} are ABI-incompatible.")
+if(NOT abi_ok)
+  message(CHECK_START "checking that C and Fortran compilers can link")
+  try_compile(abi_ok ${CMAKE_CURRENT_BINARY_DIR}/abi_check ${CMAKE_CURRENT_LIST_DIR}/abi_check abi_check)
+  if(abi_ok)
+    message(CHECK_PASS "OK")
+  else()
+    message(FATAL ERROR "C compiler {CMAKE_C_COMPILER_ID} {CMAKE_C_COMPILER_VERSION} and Fortran compiler ${CMAKE_Fortran_COMPILER_ID} ${CMAKE_Fortran_COMPILER_VERSION} are ABI-incompatible.")
+  endif()
 endif()
 
+# --- compiler options
 
 if(CMAKE_Fortran_COMPILER_ID STREQUAL GNU)
   # this helps show the options are/aren't conflicting between C and Fortran

meson.build

@@ -1,5 +1,5 @@
 project('Fortran_c_cxx_interface', 'c', 'cpp', 'fortran',
-version : '1.0.0',
+version : '1.1.1',
 meson_version: '>= 0.52.0',
 default_options : ['default_library=static', 'buildtype=release', 'warning_level=3',
 'cpp_std=c++11', 'c_std=c99'])