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|
# -*- shell-script -*-
#
# Copyright by The HDF Group.
# Copyright by the Board of Trustees of the University of Illinois.
# 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://support.hdfgroup.org/ftp/HDF5/releases.
# If you do not have access to either file, you may request a copy from
# help@hdfgroup.org.
# This file should be sourced into configure if the compiler is the
# GNU gcc compiler or a derivative. It is careful not to do anything
# if the compiler is not GNU; otherwise `cc_flags_set' is set to `yes'
#
# Get the compiler version in a way that works for gcc
# unless a compiler version is already known
#
# cc_vendor: The compiler name: gcc
# cc_version: Version number: 2.91.60, 2.7.2.1
#
if test X = "X$cc_flags_set"; then
# PathScale compiler spits out gcc version string too. Need to
# filter it out.
# icc beginning with version 12 includes a "gcc version compatiblilty"
# string, causing the gcc H5_CFLAGS to be erroneously added. The line
# "grep -v 'icc version'" causes the discarding of any output
# containing 'icc version'. The cc_version for icc is correctly determined
# and flags added in the intel-flags script.
cc_version="`$CC $CFLAGS $H5_CFLAGS -v 2>&1 | grep -v 'PathScale' |\
grep -v 'icc version' |\
grep 'gcc version' | sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`"
cc_vendor=`echo $cc_version |sed 's/\([a-z]*\).*/\1/'`
cc_version=`echo $cc_version |sed 's/[-a-z]//g'`
if test X = "X$cc_vendor" -a X != "X$cc_version"; then
cc_vendor=gcc
fi
if test "-" != "$cc_vendor-$cc_version"; then
echo "compiler '$CC' is GNU $cc_vendor-$cc_version"
fi
# Some version numbers
cc_vers_major=`echo $cc_version | cut -f1 -d.`
cc_vers_minor=`echo $cc_version | cut -f2 -d.`
cc_vers_patch=`echo $cc_version | cut -f3 -d.`
test -n "$cc_vers_major" || cc_vers_major=0
test -n "$cc_vers_minor" || cc_vers_minor=0
test -n "$cc_vers_patch" || cc_vers_patch=0
cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch`
fi
# Common GCC flags for various situations
case "$cc_vendor-$cc_version" in
gcc*)
# Architecture-specific flags
arch=
case "$host_os-$host_cpu" in
# FreeBSD sets the information from "uname -m" to the general machine
# architecture, not the specific CPU for the machine, so even our
# Pentium II Xeon server is set to "i386". Once we know we are on a FreeBSD
# machine, use the "sysctl" command to get the CPU hardware model.
freebsd*-i386)
host_cpu_model=`sysctl -n hw.model`
case "$host_cpu_model" in
# Hmm.. this might not catch Celerons, but it won't hurt them either...
*Pro*|*II*|*III*|*IV*|*Athlon*)
# architecture-specific optimizations cause problems
# for some users who build binaries to be used on
# multiple architectures.
# arch="-march=i686"
;;
esac
;;
*-i686)
# architecture-specific optimizations cause problems
# for some users who build binaries to be used on
# multiple architectures.
# arch="-march=i686"
;;
esac
case "$host_os-$host_cpu" in
# cygwin needs the "-std=c99" flag removed, so make
# a specific case for Cygwin without the flag and a default
# case to add the flag everywhere else
cygwin-*)
;;
*)
H5_CFLAGS="$H5_CFLAGS -std=c99"
;;
esac
# Host-specific flags
case "`hostname`" in
sleipnir.ncsa.uiuc.edu)
arch="$arch -pipe"
;;
esac
# 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 from the
# environment variable at configure time.
H5_CFLAGS="$H5_CFLAGS $arch -pedantic -Wall -Wextra -Wbad-function-cast -Wc++-compat -Wcast-align"
H5_CFLAGS="$H5_CFLAGS -Wcast-qual -Wconversion -Wdeclaration-after-statement -Wdisabled-optimization -Wfloat-equal"
H5_CFLAGS="$H5_CFLAGS -Wformat=2 -Winit-self -Winvalid-pch -Wmissing-declarations -Wmissing-include-dirs"
H5_CFLAGS="$H5_CFLAGS -Wmissing-prototypes -Wnested-externs -Wold-style-definition -Wpacked -Wpointer-arith"
H5_CFLAGS="$H5_CFLAGS -Wredundant-decls -Wshadow -Wstrict-prototypes -Wswitch-default -Wswitch-enum"
H5_CFLAGS="$H5_CFLAGS -Wundef -Wunused-macros -Wunsafe-loop-optimizations -Wwrite-strings"
# Production
# NDEBUG is handled explicitly by the configure script
case "$cc_vendor-$cc_version" in
gcc-4.*)
PROD_CFLAGS=
;;
gcc-[56].*)
PROD_CFLAGS="-fstdarg-opt"
;;
*)
# gcc automatically inlines based on the optimization level
# this is just a failsafe
PROD_CFLAGS="-finline-functions"
;;
esac
# Debug
# NDEBUG is handled explicitly by the configure script
# -g is handled by the symbols flags
case "$cc_vendor-$cc_version" in
gcc-[56].*)
DEBUG_CFLAGS="-ftrapv -fno-common"
;;
*)
DEBUG_CFLAGS=
;;
esac
# Developer warnings (suggestions from gcc, not code problems)
DEVELOPER_WARNING_CFLAGS="-Winline -Waggregate-return -Wmissing-format-attribute -Wmissing-noreturn"
NO_DEVELOPER_WARNING_CFLAGS="-Wno-inline -Wno-aggregate-return -Wno-missing-format-attribute -Wno-missing-noreturn"
# Symbols
NO_SYMBOLS_CFLAGS="-s"
SYMBOLS_CFLAGS="-g -fno-omit-frame-pointer"
# Profile
PROFILE_CFLAGS="-pg"
# Optimization
case "$cc_vendor-$cc_version" in
gcc-4.*)
HIGH_OPT_CFLAGS="-O3"
DEBUG_OPT_CFLAGS=
;;
gcc-[56].*)
HIGH_OPT_CFLAGS="-O3"
DEBUG_OPT_CFLAGS="-Og"
;;
*)
HIGH_OPT_CFLAGS="-O"
DEBUG_OPT_CFLAGS=
;;
esac
NO_OPT_CFLAGS="-O0"
# Flags are set
cc_flags_set=yes
;;
esac
# Version specific GCC flags
#
# Please follow the pattern below by adding new versions at the top, copying
# the information from the previous version and adding modifications to that.
case "$cc_vendor-$cc_version" in
# When the gcc 7.x release is out, we should check for additional flags to
# include and break it out into it's own section, like the other versions
# below. -QAK
gcc-6*)
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
# Append warning flags that only gcc 4.5+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants"
# Append warning flags that only gcc 4.6+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const"
# Append warning flags that only gcc 4.7+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn"
# Append warning flags that only gcc 4.8+ knows about
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format"
# Append warning flags that only gcc 4.9+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdate-time"
# Append warning flags that only gcc 5.x+ knows about
H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat"
# Append warning flags that only gcc 6.x+ knows about
H5_CFLAGS="$H5_CFLAGS -Wnull-dereference -Wunused-const-variable -Wduplicated-cond -Whsa"
;;
gcc-5*)
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
# Append warning flags that only gcc 4.5+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants"
# Append warning flags that only gcc 4.6+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const"
# Append warning flags that only gcc 4.7+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn"
# Append warning flags that only gcc 4.8+ knows about
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format"
# Append warning flags that only gcc 4.9+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdate-time"
# Append warning flags that only gcc 5.x+ knows about
H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat"
;;
gcc-4.9*)
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
# Append warning flags that only gcc 4.5+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants"
# Append warning flags that only gcc 4.6+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const"
# Append warning flags that only gcc 4.7+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn"
# Append warning flags that only gcc 4.8+ knows about
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format"
# Append warning flags that only gcc 4.9+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdate-time"
;;
gcc-4.8*)
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
# Append warning flags that only gcc 4.5+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init"
# Append warning flags that only gcc 4.6+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const"
# Append warning flags that only gcc 4.7+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn"
# Append warning flags that only gcc 4.8+ knows about
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format"
;;
gcc-4.7*)
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
# Append warning flags that only gcc 4.5+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants"
# Append warning flags that only gcc 4.6+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const"
# Append warning flags that only gcc 4.7+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn"
;;
gcc-4.6*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
# Append warning flags that only gcc 4.5+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-aliasing -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants"
# Append warning flags that only gcc 4.6+ knows about
H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines"
DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const"
NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const"
;;
gcc-4.5*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
# Append warning flags that only gcc 4.5+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-aliasing -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants"
;;
gcc-4.4*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.2+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow"
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
;;
gcc-4.3*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.1+ knows about
# -Wvolatile-register-var was later incorporated into -Wall and
# needs to be specified explicitly for gcc 4.1-4.3.
H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var"
# Append warning flags that only gcc 4.2+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow"
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wvla"
;;
gcc-4.2*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.1+ knows about
# -Wvolatile-register-var was later incorporated into -Wall and
# needs to be specified explicitly for gcc 4.1-4.3.
H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var"
# Append warning flags that only gcc 4.2+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow"
;;
gcc-4.1*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.1+ knows about
# -Wvolatile-register-var was later incorporated into -Wall and
# needs to be specified explicitly for gcc 4.1-4.3.
H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var"
;;
esac
# Clear cc info if no flags set
if test "X$cc_flags_set" = "X"; then
cc_vendor=
cc_version=
fi
|
