1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
# -*- 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://www.hdfgroup.org/licenses.
# 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
# Clang clang++ compiler or a derivative. It is careful not to do anything
# if the compiler is not Clang; otherwise 'cxx_flags_set' is set to 'yes'
#
#
# For now, do not promote any warnings to errors.
#
WARNINGS_AS_ERRORS_DFLT=no
#
# This filter rewrites -Werror= as -W, in that way demoting warnings
# promoted to errors back to warnings, if WARNINGS_AS_ERRORS is no.
#
demote_errors()
{
if [ ${WARNINGS_AS_ERRORS:-${WARNINGS_AS_ERRORS_DFLT}} = no ]; then
sed 's,-Werror=,-W,g'
else
cat
fi
}
#
# Prepend `$srcdir/config/clang-warnings/` to the filename suffix(es) given as
# subroutine argument(s), remove comments starting with # and ending
# at EOL, replace spans of whitespace (including newlines) with spaces,
# and re-emit the file(s) thus filtered on the standard output stream.
#
load_clang_arguments()
{
set -- $(for arg; do
sed 's,#.*$,,' $srcdir/config/clang-warnings/${arg} | demote_errors
done)
IFS=' ' echo "$*"
}
# Get the compiler version in a way that works for clang++
# unless a compiler version is already known
#
# cxx_vendor: The compiler name: clang++
# cxx_version: Version number: 6.0.0, 7.3.0, ... 10.0.1
#
if test "X-" = "X-$cxx_flags_set"; then
# clang++ -v will return version number following "clang" on Linux machines,
# but on Macs the version number will follow "Apple LLVM version"
cxx_version="`$CXX $CXXFLAGS $H5_CXXFLAGS -v 2>&1 |\
grep 'clang version' | sed 's/.*clang version \([-a-z0-9\.]*\).*/\1/'`"
if test -n "$cxx_version"; then
cxx_vendor="clang"
else
cxx_version="`$CXX $CXXFLAGS $H5_CXXFLAGS -v 2>&1 |\
grep 'Apple LLVM version' | sed 's/.*Apple LLVM version \([-a-z0-9\.]*\).*/\1/'`"
if test -n "$cxx_version"; then
cxx_vendor="Apple LLVM"
fi
fi
if test "X-" != "X-$cxx_version"; then
# Get the compiler version numbers
cxx_vers_major=`echo $cxx_version | cut -f1 -d.`
cxx_vers_minor=`echo $cxx_version | cut -f2 -d.`
cxx_vers_patch=`echo $cxx_version | cut -f3 -d.`
test -n "$cxx_vers_major" || cxx_vers_major=0
test -n "$cxx_vers_minor" || cxx_vers_minor=0
test -n "$cxx_vers_patch" || cxx_vers_patch=0
fi
fi
if test "X-clang" = "X-$cxx_vendor" -o "X-Apple LLVM" = "X-$cxx_vendor"; then
echo "compiler '$CXX' is $cxx_vendor-$cxx_version"
###############################
# 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 "$host_cpu_model" in
# Hmm.. this might not catch Celerons, but it won't hurt them either...
*Pro*|*II*|*III*|*IV*|*Athlon*)
# architecture-specific optimizations cause problems
# for some users who build binaries to be used on
# multiple architectures.
# arch="-march=i686"
;;
esac
;;
*-i686)
# architecture-specific optimizations cause problems
# for some users who build binaries to be used on
# multiple architectures.
# arch="-march=i686"
;;
esac
H5_CXXFLAGS="$H5_CXXFLAGS $arch"
##############
# Production #
##############
# NDEBUG is handled explicitly by the configure script
PROD_CXXFLAGS=
#########
# Debug #
#########
# NDEBUG is handled explicitly by the configure script
# -g is handled by the symbols flags
DEBUG_CXXFLAGS="-ftrapv -fno-common"
###########
# Symbols #
###########
NO_SYMBOLS_CXXFLAGS=
SYMBOLS_CXXFLAGS="-g -fno-omit-frame-pointer"
#############
# Profiling #
#############
PROFILE_CXXFLAGS="-pg"
################
# Optimization #
################
HIGH_OPT_CXXFLAGS="-O3"
DEBUG_OPT_CXXFLAGS="-g"
NO_OPT_CXXFLAGS="-O0"
############
# Warnings #
############
###########
# General #
###########
H5_CXXFLAGS="$H5_CXXFLAGS $(load_clang_arguments general)"
H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_clang_arguments error-general)"
######################
# Developer warnings #
######################
NO_DEVELOPER_WARNING_CXXFLAGS=$(load_clang_arguments no-developer-general)
DEVELOPER_WARNING_CXXFLAGS=$(load_clang_arguments developer-general)
#############################
# Version-specific warnings #
#############################
#################
# Flags are set #
#################
cxx_flags_set=yes
fi
# Clear cxx info if no flags set
if test "X$cxx_flags_set" = "X"; then
cxx_vendor=
cxx_version=
fi
|
