Merge pull request #316 from zhaozg/fix/stdio

cmake: new option BUILD_NO_STDIO to enable MINIZ_NO_STDIO

CMakeLists.txt

@@ -26,7 +26,7 @@ endif()
 set(MINIZ_API_VERSION 3)
 set(MINIZ_MINOR_VERSION 0)
 set(MINIZ_PATCH_VERSION 2)
-set(MINIZ_VERSION 
+set(MINIZ_VERSION
     ${MINIZ_API_VERSION}.${MINIZ_MINOR_VERSION}.${MINIZ_PATCH_VERSION})
 
 if(CMAKE_BUILD_TYPE STREQUAL "")
@@ -42,6 +42,7 @@ option(BUILD_FUZZERS "Build fuzz targets" OFF)
 option(AMALGAMATE_SOURCES "Amalgamate sources into miniz.h/c" OFF)
 option(BUILD_HEADER_ONLY "Build a header-only version" OFF)
 option(BUILD_SHARED_LIBS "Build shared library instead of static" OFF)
+option(BUILD_NO_STDIO" Build a without stdio version" OFF)
 option(BUILD_TESTS "Build tests" ${MINIZ_STANDALONE_PROJECT})
 option(INSTALL_PROJECT "Install project" ${MINIZ_STANDALONE_PROJECT})
 
@@ -85,14 +86,14 @@ if(AMALGAMATE_SOURCES)
              "${AMAL_MINIZ_C}" "\n#endif // MINIZ_HEADER_FILE_ONLY\n")
     file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/amalgamation/miniz.h "${AMAL_MINIZ_H}")
     add_library(${PROJECT_NAME} INTERFACE)
-    
+
     # Might not be a good idea to force this on the library user
     # as it could bloat the global namespace
     # https://github.com/libevent/libevent/issues/460
-    # target_compile_definitions(${PROJECT_NAME} 
+    # target_compile_definitions(${PROJECT_NAME}
     #     INTERFACE $<$<C_COMPILER_ID:GNU>:_GNU_SOURCE>)
-    
-    set_property(TARGET ${PROJECT_NAME} APPEND 
+
+    set_property(TARGET ${PROJECT_NAME} APPEND
       PROPERTY INTERFACE_INCLUDE_DIRECTORIES
       $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/amalgamation>
       $<INSTALL_INTERFACE:include>
@@ -111,7 +112,7 @@ if(AMALGAMATE_SOURCES)
   endif(BUILD_HEADER_ONLY)
 
   set(INSTALL_HEADERS ${CMAKE_CURRENT_BINARY_DIR}/amalgamation/miniz.h)
-  
+
   file(GLOB_RECURSE ZIP_FILES RELATIVE "${CMAKE_CURRENT_BINARY_DIR}/amalgamation" "${CMAKE_CURRENT_BINARY_DIR}/amalgamation/*")
   file(GLOB_RECURSE ZIP_FILES2 RELATIVE "${CMAKE_SOURCE_DIR}" "${CMAKE_SOURCE_DIR}/examples/*")
   list(APPEND ZIP_FILES ${ZIP_FILES2})
@@ -131,7 +132,7 @@ if(AMALGAMATE_SOURCES)
         DEPENDS ${ZIP_FILES}
         COMMENT "Zipping to ${CMAKE_CURRENT_BINARY_DIR}/miniz.zip."
     )
-	
+
 	add_custom_target(
 	  create_zip ALL
 	  DEPENDS "${ZIP_OUT_FN}"
@@ -152,20 +153,20 @@ else(AMALGAMATE_SOURCES)
 
   set_property(TARGET ${PROJECT_NAME} PROPERTY VERSION ${MINIZ_VERSION})
   set_property(TARGET ${PROJECT_NAME} PROPERTY SOVERSION ${MINIZ_API_VERSION})
-  
+
   target_include_directories(${PROJECT_NAME} PUBLIC
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
     $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
     $<INSTALL_INTERFACE:include>
   )
-  
+
   file(GLOB INSTALL_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/*.h)
   list(APPEND
        INSTALL_HEADERS ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}_export.h)
 endif(AMALGAMATE_SOURCES)
 
 if(NOT BUILD_HEADER_ONLY)
-  target_compile_definitions(${PROJECT_NAME} 
+  target_compile_definitions(${PROJECT_NAME}
     PRIVATE $<$<C_COMPILER_ID:GNU>:_GNU_SOURCE>)
 
   # pkg-config file
@@ -178,6 +179,10 @@ if(NOT BUILD_HEADER_ONLY)
   endif()
 endif()
 
+if(BUILD_NO_STDIO)
+  target_compile_definitions(${PROJECT_NAME} PRIVATE MINIZ_NO_STDIO)
+endif()
+
 set_property(TARGET ${PROJECT_NAME} PROPERTY
   INTERFACE_${PROJECT_NAME}_MAJOR_VERSION ${MINIZ_API_VERSION})
 set_property(TARGET ${PROJECT_NAME} APPEND PROPERTY
@@ -242,8 +247,10 @@ if(BUILD_EXAMPLES)
 
   add_executable(example1 ${EXAMPLE1_SRC_LIST})
   target_link_libraries(example1 miniz)
-  add_executable(example2 ${EXAMPLE2_SRC_LIST})
-  target_link_libraries(example2 miniz)
+  if(NOT BUILD_NO_STDIO)
+    add_executable(example2 ${EXAMPLE2_SRC_LIST})
+    target_link_libraries(example2 miniz)
+  endif()
   add_executable(example3 ${EXAMPLE3_SRC_LIST})
   target_link_libraries(example3 miniz)
   add_executable(example4 ${EXAMPLE4_SRC_LIST})
@@ -298,17 +305,18 @@ if(BUILD_FUZZERS)
 endif()
 
 if(BUILD_TESTS)
-	set(CMAKE_CXX_STANDARD 20)
-	set(CMAKE_CXX_STANDARD_REQUIRED YES)
-
-	add_executable(catch_tests tests/main.cpp
-						tests/catch_amalgamated.cpp)
-	target_link_libraries(catch_tests miniz)
-
-	enable_testing()
-
-	add_test(NAME catch_tests
-			 COMMAND $<TARGET_FILE:catch_tests>)
+  set(CMAKE_CXX_STANDARD 20)
+  set(CMAKE_CXX_STANDARD_REQUIRED YES)
+
+  add_executable(catch_tests tests/main.cpp tests/catch_amalgamated.cpp)
+  if(BUILD_NO_STDIO)
+    target_compile_definitions(catch_tests PRIVATE -DMINIZ_NO_STDIO)
+  endif()
+  target_link_libraries(catch_tests miniz)
+
+  enable_testing()
+
+  add_test(NAME catch_tests COMMAND $<TARGET_FILE:catch_tests>)
 endif()
 
 set(INCLUDE_INSTALL_DIR "include")

tests/main.cpp

@@ -5,8 +5,11 @@
 
 #ifdef _WIN32
 #define unlink _unlink
+#else
+#include <unistd.h>
 #endif
 
+#ifndef MINIZ_NO_STDIO
 bool create_test_zip()
 {
     unlink("test.zip");
@@ -79,6 +82,7 @@ TEST_CASE("Zip writer tests")
         }
     }
 }
+#endif
 
 TEST_CASE("Tinfl / tdefl tests")
 {
@@ -124,4 +128,4 @@ TEST_CASE("Tinfl / tdefl tests")
         REQUIRE(decomp_len == uncomp_len);
         REQUIRE(memcmp(decomp_buf, p, uncomp_len) == 0);
     }
-}
+}