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|
#
# Copyright by The HDF Group.
# All rights reserved.
#
# This file is part of HDF5. The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the COPYING file, which can be found at the root of the source code
# distribution tree, or in https://www.hdfgroup.org/licenses.
# If you do not have access to either file, you may request a copy from
# help@hdfgroup.org.
#
set(CMAKE_C_STANDARD 99)
set(CMAKE_C_STANDARD_REQUIRED TRUE)
set (CMAKE_C_FLAGS "${CMAKE_C99_STANDARD_COMPILE_OPTION} ${CMAKE_C_FLAGS}")
set (CMAKE_C_FLAGS "${CMAKE_C_SANITIZER_FLAGS} ${CMAKE_C_FLAGS}")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_SANITIZER_FLAGS} ${CMAKE_CXX_FLAGS}")
if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.15.0")
message (VERBOSE "Warnings Configuration: default: ${CMAKE_C_FLAGS} : ${CMAKE_CXX_FLAGS}")
endif ()
#-----------------------------------------------------------------------------
# Compiler specific flags : Shouldn't there be compiler tests for these
#-----------------------------------------------------------------------------
if (CMAKE_COMPILER_IS_GNUCC)
set (CMAKE_C_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_C_FLAGS}")
if (${HDF_CFG_NAME} MATCHES "Debug")
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 5.0)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Og -ftrapv -fno-common")
endif ()
else ()
if (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 5.0)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstdarg-opt")
endif ()
if (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 10.0)
#-----------------------------------------------------------------------------
# Option to allow the user to enable build extended diagnostics
#
# This should NOT be on by default as it can cause process issues.
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_BUILD_DIAGS "Enable color and URL extended diagnostic messages" OFF)
if (HDF5_ENABLE_BUILD_DIAGS)
message (STATUS "... default color and URL extended diagnostic messages enabled")
else ()
message (STATUS "... disable color and URL extended diagnostic messages")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fdiagnostics-urls=never -fno-diagnostics-color")
endif ()
endif ()
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to disable compiler warnings
#-----------------------------------------------------------------------------
option (HDF5_DISABLE_COMPILER_WARNINGS "Disable compiler warnings" OFF)
if (HDF5_DISABLE_COMPILER_WARNINGS)
message (STATUS "....Compiler warnings are suppressed")
# MSVC uses /w to suppress warnings. It also complains if another
# warning level is given, so remove it.
if (MSVC)
set (HDF5_WARNINGS_BLOCKED 1)
string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W0")
endif ()
if (WIN32)
add_definitions (-D_CRT_SECURE_NO_WARNINGS)
endif ()
# Borland uses -w- to suppress warnings.
if (BORLAND)
set (HDF5_WARNINGS_BLOCKED 1)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
endif ()
# Most compilers use -w to suppress warnings.
if (NOT HDF5_WARNINGS_BLOCKED)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w")
endif ()
endif ()
#-----------------------------------------------------------------------------
# HDF5 library compile options
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# CDash is configured to only allow 3000 warnings, so
# break into groups (from the config/gnu-flags file)
#-----------------------------------------------------------------------------
if (NOT MSVC AND NOT MINGW)
#-----------------------------------------------------------------------------
# Option to allow the user to interpret certain warnings as errors
#
# This should NOT be on by default as it can cause a lot of conflicts with
# new operating systems and compiler versions. Header files that are out of
# our control (MPI, HDFS, etc.) can also raise warnings.
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_WARNINGS_AS_ERRORS "Interpret some warnings as errors" OFF)
if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
message (STATUS "...some warnings will be interpreted as errors")
endif ()
if (${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
list (APPEND HDF5_CMAKE_C_FLAGS "-erroff=%none -DBSD_COMP")
else ()
# General flags
#
# Note that some of the flags listed here really should be developer
# flags (listed in a separate variable, below) but we put them here
# because they are not raised by the current code and we'd like to
# know if they do start showing up.
#
# NOTE: Don't add -Wpadded here since we can't/won't fix the (many)
# warnings that are emitted. If you need it, add it at configure time.
if (CMAKE_C_COMPILER_ID STREQUAL "Intel")
ADD_H5_FLAGS (HDF5_CMAKE_C_FLAGS "${HDF5_SOURCE_DIR}/config/intel-warnings/general")
list (APPEND H5_CFLAGS0 "-Wcomment -Wdeprecated -Wmain -Wmissing-declarations -Wmissing-prototypes -Wp64 -Wpointer-arith")
list (APPEND H5_CFLAGS0 "-Wreturn-type -Wstrict-prototypes -Wuninitialized")
list (APPEND H5_CFLAGS0 "-Wunknown-pragmas -Wunused-function -Wunused-variable")
# this is just a failsafe
list (APPEND H5_CFLAGS0 "-finline-functions")
if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 18.0)
list (APPEND H5_CFLAGS0 "-Wextra-tokens -Wformat -Wformat-security -Wic-pointer -Wshadow")
list (APPEND H5_CFLAGS0 "-Wsign-compare -Wtrigraphs -Wwrite-strings")
endif()
elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU")
# Add general CFlags for GCC versions 4.8 and above
if (CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 4.8)
ADD_H5_FLAGS (HDF5_CMAKE_C_FLAGS "${HDF5_SOURCE_DIR}/config/gnu-warnings/general")
if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-general")
else ()
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/noerror-general")
endif ()
endif ()
# gcc automatically inlines based on the optimization level
# this is just a failsafe
list (APPEND H5_CFLAGS0 "-finline-functions")
elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
ADD_H5_FLAGS (HDF5_CMAKE_C_FLAGS "${HDF5_SOURCE_DIR}/config/clang-warnings/general")
if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/error-general")
else ()
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/noerror-general")
endif ()
elseif (CMAKE_C_COMPILER_ID STREQUAL "PGI")
list (APPEND HDF5_CMAKE_C_FLAGS "-Minform=inform")
endif ()
if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.15.0")
message (VERBOSE "CMAKE_C_FLAGS_GENERAL=${HDF5_CMAKE_C_FLAGS}")
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to enable developer warnings
# Developer warnings (suggestions from gcc, not code problems)
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_DEV_WARNINGS "Enable HDF5 developer group warnings" OFF)
if (HDF5_ENABLE_DEV_WARNINGS)
message (STATUS "....HDF5 developer group warnings are enabled")
if (CMAKE_C_COMPILER_ID STREQUAL "Intel")
list (APPEND H5_CFLAGS0 "-Winline -Wreorder -Wport -Wstrict-aliasing")
elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 4.8)
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-general")
elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/developer-general")
endif ()
else ()
if (CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 4.8)
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-general")
elseif (CMAKE_C_COMPILER_ID STREQUAL "Clang")
ADD_H5_FLAGS (H5_CFLAGS0 "${HDF5_SOURCE_DIR}/config/clang-warnings/no-developer-general")
endif ()
endif ()
if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... Only needed for gcc 4.X
if (CMAKE_C_COMPILER_VERSION VERSION_LESS 5.0 AND CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 4.8)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.8-4.last")
endif ()
# Append more extra warning flags that only gcc 4.8+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.8)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.8")
if (HDF5_ENABLE_DEV_WARNINGS)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-4.8")
else ()
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-4.8")
endif ()
endif ()
# Append more extra warning flags that only gcc 4.9+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.9)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/4.9")
endif ()
# Append more extra warning flags that only gcc 5.x+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 5.0)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/5")
if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-5")
else ()
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-5")
endif ()
endif ()
# Append more extra warning flags that only gcc 6.x+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 6.0)
ADD_H5_FLAGS (H5_CFLAGS1 "${HDF5_SOURCE_DIR}/config/gnu-warnings/6")
endif ()
# Append more extra warning flags that only gcc 7.x+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 7.0)
ADD_H5_FLAGS (H5_CFLAGS2 "${HDF5_SOURCE_DIR}/config/gnu-warnings/7")
if (HDF5_ENABLE_DEV_WARNINGS)
ADD_H5_FLAGS (H5_CFLAGS2 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-7")
#else ()
# ADD_H5_FLAGS (H5_CFLAGS2 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-7")
endif ()
endif ()
# Append more extra warning flags that only gcc 8.x+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 8.0)
ADD_H5_FLAGS (H5_CFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/8")
if (HDF5_ENABLE_WARNINGS_AS_ERRORS)
ADD_H5_FLAGS (H5_CFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/error-8")
endif ()
if (HDF5_ENABLE_DEV_WARNINGS)
ADD_H5_FLAGS (H5_CFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/developer-8")
else ()
ADD_H5_FLAGS (H5_CFLAGS3 "${HDF5_SOURCE_DIR}/config/gnu-warnings/no-developer-8")
endif ()
endif ()
# Append more extra warning flags that only gcc 9.x+ know about
if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 9.0)
ADD_H5_FLAGS (H5_CFLAGS4 "${HDF5_SOURCE_DIR}/config/gnu-warnings/9")
endif ()
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to enable all warnings
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_ALL_WARNINGS "Enable all warnings" OFF)
if (HDF5_ENABLE_ALL_WARNINGS)
message (STATUS "....All Warnings are enabled")
if (MSVC)
if (HDF5_ENABLE_DEV_WARNINGS)
string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
list (APPEND HDF5_CMAKE_C_FLAGS "/Wall /wd4668")
else ()
string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
list (APPEND HDF5_CMAKE_C_FLAGS "/W3")
endif ()
else ()
list (APPEND HDF5_CMAKE_C_FLAGS ${H5_CFLAGS0} ${H5_CFLAGS1} ${H5_CFLAGS2} ${H5_CFLAGS3} ${H5_CFLAGS4})
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_GROUPZERO_WARNINGS "Enable group zero warnings" OFF)
if (HDF5_ENABLE_GROUPZERO_WARNINGS)
message (STATUS "....Group Zero warnings are enabled")
if (MSVC)
string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_C_FLAGS "${HDF5_CMAKE_C_FLAGS}")
list (APPEND HDF5_CMAKE_C_FLAGS "/W1")
else ()
list (APPEND HDF5_CMAKE_C_FLAGS ${H5_CFLAGS0})
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_GROUPONE_WARNINGS "Enable group one warnings" OFF)
if (HDF5_ENABLE_GROUPONE_WARNINGS)
message (STATUS "....Group One warnings are enabled")
if (MSVC)
string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_C_FLAGS "${HDF5_CMAKE_C_FLAGS}")
list (APPEND HDF5_CMAKE_C_FLAGS "/W2")
else ()
list (APPEND HDF5_CMAKE_C_FLAGS ${H5_CFLAGS1})
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_GROUPTWO_WARNINGS "Enable group two warnings" OFF)
if (HDF5_ENABLE_GROUPTWO_WARNINGS)
message (STATUS "....Group Two warnings are enabled")
if (MSVC)
string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_C_FLAGS "${HDF5_CMAKE_C_FLAGS}")
list (APPEND HDF5_CMAKE_C_FLAGS "/W3")
else ()
list (APPEND HDF5_CMAKE_C_FLAGS ${H5_CFLAGS2})
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_GROUPTHREE_WARNINGS "Enable group three warnings" OFF)
if (HDF5_ENABLE_GROUPTHREE_WARNINGS)
message (STATUS "....Group Three warnings are enabled")
if (MSVC)
string (REGEX REPLACE "(^| )([/-])W[0-9]( |$)" " " HDF5_CMAKE_C_FLAGS "${HDF5_CMAKE_C_FLAGS}")
list (APPEND HDF5_CMAKE_C_FLAGS "/W4")
else ()
list (APPEND HDF5_CMAKE_C_FLAGS ${H5_CFLAGS3})
endif ()
endif ()
#-----------------------------------------------------------------------------
# Option to allow the user to enable warnings by groups
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_GROUPFOUR_WARNINGS "Enable group four warnings" OFF)
if (HDF5_ENABLE_GROUPFOUR_WARNINGS)
message (STATUS "....Group Four warnings are enabled")
if (NOT MSVC)
list (APPEND HDF5_CMAKE_C_FLAGS ${H5_CFLAGS4})
endif ()
endif ()
#-----------------------------------------------------------------------------
# This is in here to help some of the GCC based IDES like Eclipse
# and code blocks parse the compiler errors and warnings better.
#-----------------------------------------------------------------------------
if (CMAKE_COMPILER_IS_GNUCC)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fmessage-length=0")
endif ()
#-----------------------------------------------------------------------------
# Option for --enable-asserts
# By default, CMake adds NDEBUG to CMAKE_${lang}_FLAGS for Release build types
# This option will force/override the default setting for all configurations
#-----------------------------------------------------------------------------
#option (HDF5_ENABLE_ASSERTS "Determines whether NDEBUG is defined to control assertions." OFF)
set (HDF5_ENABLE_ASSERTS "OFF" CACHE STRING "Determines whether NDEBUG is defined to control assertions (OFF NO YES)")
set_property (CACHE HDF5_ENABLE_ASSERTS PROPERTY STRINGS OFF NO YES)
if (HDF5_ENABLE_ASSERTS MATCHES "YES")
add_compile_options ("-UNDEBUG")
elseif (HDF5_ENABLE_ASSERTS MATCHES "NO")
add_compile_options ("-DNDEBUG")
endif ()
MARK_AS_ADVANCED (HDF5_ENABLE_ASSERTS)
#-----------------------------------------------------------------------------
# Option for --enable-symbols
# This option will force/override the default setting for all configurations
#-----------------------------------------------------------------------------
#option (HDF5_ENABLE_SYMBOLS "Add debug symbols to the library independent of the build mode and optimization level." OFF)
set (HDF5_ENABLE_SYMBOLS "OFF" CACHE STRING "Add debug symbols to the library independent of the build mode and optimization level (OFF NO YES)")
set_property (CACHE HDF5_ENABLE_SYMBOLS PROPERTY STRINGS OFF NO YES)
if (HDF5_ENABLE_SYMBOLS MATCHES "YES")
if (CMAKE_C_COMPILER_ID STREQUAL "Intel")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g")
elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -fno-omit-frame-pointer")
endif ()
elseif (HDF5_ENABLE_SYMBOLS MATCHES "NO")
if (CMAKE_C_COMPILER_ID STREQUAL "Intel")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wl,-s")
elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s")
endif ()
endif ()
MARK_AS_ADVANCED (HDF5_ENABLE_SYMBOLS)
#-----------------------------------------------------------------------------
# Option for --enable-profiling
# This option will force/override the default setting for all configurations
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_PROFILING "Enable profiling flags independently from the build mode." OFF)
if (HDF5_ENABLE_PROFILING)
list (APPEND HDF5_CMAKE_C_FLAGS "${PROFILE_CFLAGS}")
endif ()
MARK_AS_ADVANCED (HDF5_ENABLE_PROFILING)
#-----------------------------------------------------------------------------
# Option for --enable-optimization
# This option will force/override the default setting for all configurations
#-----------------------------------------------------------------------------
option (HDF5_ENABLE_OPTIMIZATION "Enable optimization flags/settings independently from the build mode" OFF)
if (HDF5_ENABLE_OPTIMIZATION)
list (APPEND HDF5_CMAKE_C_FLAGS "${OPTIMIZE_CFLAGS}")
endif ()
MARK_AS_ADVANCED (HDF5_ENABLE_OPTIMIZATION)
|
