Added cmake tests to verify output of makefixed (madler#398)

* Add auto-generated header files to .gitignore
* Remove auto-generated header files in make clean

.gitignore

@@ -49,6 +49,7 @@ CMakeFiles
 Testing
 *.cmake
 *.stackdump
+*._h
 zconf.h
 zconf.h.cmakein
 zconf.h.included

CMakeLists.txt

@@ -890,6 +890,18 @@ if (ZLIB_ENABLE_TESTS)
         add_test(NAME CVE-2003-0107 COMMAND CVE-2003-0107)
     endif()
 
+    set(MAKEFIXED_COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:makefixed>)
+    add_test(NAME makefixed
+        COMMAND ${CMAKE_COMMAND}
+        "-DCOMMAND=${MAKEFIXED_COMMAND}"
+        -DOUTPUT=${CMAKE_CURRENT_SOURCE_DIR}/inffixed._h
+        -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/run-and-redirect.cmake)
+
+    add_test(NAME makefixed-cmp
+        COMMAND ${CMAKE_COMMAND} -E compare_files
+            ${CMAKE_CURRENT_SOURCE_DIR}/inffixed.h
+            ${CMAKE_CURRENT_SOURCE_DIR}/inffixed._h)
+
     set(GH_361_COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:minigzip> -4)
     add_test(NAME GH-361
         COMMAND ${CMAKE_COMMAND}

Makefile.in

@@ -347,6 +347,7 @@ clean:
 	rm -f *.gcda *.gcno *.gcov
 	rm -f a.out a.exe
 	rm -f *.pc
+	rm -f *._h
 
 maintainer-clean: distclean
 distclean: clean

cmake/run-and-redirect.cmake

@@ -1,12 +1,20 @@
-if(WIN32)
-    set(DEVNULL NUL)
+if(NOT OUTPUT)
+    if(WIN32)
+        set(OUTPUT NUL)
+    else()
+        set(OUTPUT /dev/null)
+    endif()
+endif()
+if(INPUT)
+    execute_process(COMMAND ${COMMAND}
+        RESULT_VARIABLE CMD_RESULT
+        INPUT_FILE ${INPUT}
+        OUTPUT_FILE ${OUTPUT})
 else()
-    set(DEVNULL /dev/null)
+    execute_process(COMMAND ${COMMAND}
+        RESULT_VARIABLE CMD_RESULT
+        OUTPUT_FILE ${OUTPUT})
 endif()
-execute_process(COMMAND ${COMMAND}
-    RESULT_VARIABLE CMD_RESULT
-    INPUT_FILE ${INPUT}
-    OUTPUT_FILE ${DEVNULL})
 if(SUCCESS_EXIT)
     list(FIND SUCCESS_EXIT ${CMD_RESULT} _INDEX)
     if (${_INDEX} GREATER -1)